[CentOS-docs] Proposed change to HowTos/Skype
In the section for CentOS-5, it would be nice if the following alternative method for running Skype on CentOS-5 were presented: You can download a statically linked version of Skype which will work in CentOS-5 from http://download.skype.com/linux/skype_static-2.1.047.tar.bz2 I think it's a little bit silly that the first recommendation for running skype on CentOS-5 is to install a new version of libstdc++! Hopefully the version I've linked to will remain available directly through skype's homepage, and if not, some public mirror will arise. If you want me to change this directly, my login is JohnFettig. I would be happy if e.g. Akemi Yagi (amy...@gmail.com) would add this info. John ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Proposed change to HowTos/Skype
On Wed, Jul 20, 2011 at 7:10 AM, John Fettig john.fet...@gmail.com wrote: In the section for CentOS-5, it would be nice if the following alternative method for running Skype on CentOS-5 were presented: You can download a statically linked version of Skype which will work in CentOS-5 from http://download.skype.com/linux/skype_static-2.1.047.tar.bz2 I think it's a little bit silly that the first recommendation for running skype on CentOS-5 is to install a new version of libstdc++! Hopefully the version I've linked to will remain available directly through skype's homepage, and if not, some public mirror will arise. If you want me to change this directly, my login is JohnFettig. I would be happy if e.g. Akemi Yagi (amy...@gmail.com) would add this info. Ralph is the Wiki admin. He can give you edit right for that page. Akemi ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-virt] Suggestions to improve this minimal kickstart config for CentOS 6?
On 07/20/2011 04:48 PM, Kartik Subbarao wrote: On 07/19/2011 05:36 PM, Manuel Wolfshant wrote: Try the attached ks. It installs around 180 packages. libselinux-utils is in because I find it mandatory to be able to modify the selinux configuration of an existing system. Thanks for the info. I created a VM with this config and it took up about 512MB of disk space, which is higher than the kickstart file that I posted (about 460MB). you removed selinux and also used rpm -e --nodeps which I would never promote (even if I also use on occasions). ditch from my list the packages which install firmware and you'll end up at roughly the same size as yours. anyway my target was never minimal space on disk (today even CFs and SSD are several times larger than what the ks installs ) but minimal number of packages while still maintaining out of the box all the proper functionality ( or at least my vision on it), including for servers with real storage behind them ( brocade, etc ). and I emphasize again: including selinux tools. I'm running x86_64 so I'll probably see different sizes than your system which appears to be i686. my ks works on both, just adjust the repository used for install In any event, thanks for taking the time to post your kickstart file. It helps me validate that what I have is reasonably minimal, that I'm probably not missing any major sources of size reductions. welcome ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] how to add file-based disk space to a guest
hi there, I'm following these documentations to add a file-based disk volume to a KVM guest under Centos 6.0 : http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/chap-Virtualization-Storage_Volumes.html as instructed, I created a pool then a volume, file-based, e.g : mkdir /mnt/raid/kvm_pool1 virsh # pool-define-as pool1 dir - - - - /mnt/raid/kvm_pool1 virsh # pool-autostart pool1 virsh # vol-create-as pool1 volume1 20G --allocation 15G --format qcow2 now I want to associate volume1 to my guest OS. Following this doc: http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization/sect-Virtualization-Virtualized_block_devices-Adding_storage_devices_to_guests.html - why does this ask me to create a file with dd ? it's already been created before with the virsh pool commands, isn't it? Seems to me I'm bypassing the libvirt/virsh layer if I do that. - after that, the doc tells me to do some stuff with guest XML files. Is'nt there some specific commands provided by virsh to associate a managed Pool to a managed Guest ? - in this case, should I use the virsh attach-disk command ? thanks. -- Tom ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Suggestions to improve this minimal kickstart config for CentOS 6?
For what it's worth here are a few more tools that I include due to fairly minimal impact, but are assumed by many 3rd party scripts for example: rsync unzip wget And personally I like these for local setup though they add a big more space: ntp elinks lsof nmap denyhosts yum-utils autofs nfs-utils nss_db nss-pam-ldapd nss-tools openldap-clients pam_ldap ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
Re: [CentOS-virt] Suggestions to improve this minimal kickstart config for CentOS 6?
On 07/21/2011 02:36 AM, JDF. Franklin wrote: For what it's worth here are a few more tools that I include due to fairly minimal impact, but are assumed by many 3rd party scripts for example: rsync unzip wget And personally I like these for local setup though they add a big more space: ntp elinks lsof nmap denyhosts yum-utils autofs nfs-utils nss_db nss-pam-ldapd nss-tools openldap-clients pam_ldap Thank you for your suggestions. I want to keep the minimal image really minimal so I am not going to add to it anything but hardware drivers. On the other hand, I will keep your list handy and adjust accordingly (if space allows ) the content of the Light Weight Server CD ( which is still under work) For what is worth, my minimal kickstart is now available as ks-minimalC6 at https://nazar.karan.org/cgit/bluecain/tree/ manuel ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-es] xml2csv
Hola a todos. Este es mi primer correo aca. Les comento el panorama: soy slackero, estoy estandarizando todo a a Debian en el trabajo o CentOS, segun el aplicativo utilizado y el nivel de conocimiento de los usuarios. El problema radica en que necesito trabajar con xml2csv, el cual instale a traves de EPEL. Sin embargo, durante la instalacion, me arroja problemas de dependencias. Como las resuelvo? Salvo perl(Locale::Recode), el resto la instale desde CPanel, pero al ejecutar nuevamente el install, sigue el error. Resolving Dependencies -- Running transaction check --- Package xls2csv.noarch 0:1.06-5.el5 set to be updated -- Processing Dependency: perl(Text::CSV_XS) for package: xls2csv -- Processing Dependency: perl(Spreadsheet::ParseExcel::FmtUnicode) for package: xls2csv -- Processing Dependency: perl(Unicode::Map) for package: xls2csv -- Processing Dependency: perl(Locale::Recode) for package: xls2csv -- Processing Dependency: perl(Spreadsheet::ParseExcel) for package: xls2csv -- Finished Dependency Resolution xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Unicode::Map) is needed by package xls2csv-1.06-5.el5.noarch (epel) xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Locale::Recode) is needed by package xls2csv-1.06-5.el5.noarch (epel) xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Spreadsheet::ParseExcel::FmtUnicode) is needed by package xls2csv-1.06-5.el5.noarch (epel) xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Spreadsheet::ParseExcel) is needed by package xls2csv-1.06-5.el5.noarch (epel) xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Text::CSV_XS) is needed by package xls2csv-1.06-5.el5.noarch (epel) Error: Missing Dependency: perl(Locale::Recode) is needed by package xls2csv-1.06-5.el5.noarch (epel) Error: Missing Dependency: perl(Spreadsheet::ParseExcel::FmtUnicode) is needed by package xls2csv-1.06-5.el5.noarch (epel) Error: Missing Dependency: perl(Spreadsheet::ParseExcel) is needed by package xls2csv-1.06-5.el5.noarch (epel) Error: Missing Dependency: perl(Unicode::Map) is needed by package xls2csv-1.06-5.el5.noarch (epel) Error: Missing Dependency: perl(Text::CSV_XS) is needed by package xls2csv-1.06-5.el5.noarch (epel) You could try using --skip-broken to work around the problem You could try running: package-cleanup --problems package-cleanup --dupes rpm -Va --nofiles --nodigest -- Diego - Yo no soy paranoico! (pero que me siguen, me siguen) http://about.me/diegors/bio ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS-es] xml2csv
Utiliza el repositorio rpmforge alli tienes casi todas las dependencias de PERL. ( http://www.rubenortiz.es/2008/02/07/instalar-rpmforge-en-centos/ ) Una vez instalado el repositorio: Por ejemplo: yum list *unicode* Available Packages libunicode.i386 0.7-1.2.el5.rf rpmforge libunicode-devel.i386 0.7-1.2.el5.rf rpmforge perl-Unicode-Char.noarch 0.02-1.el5.rf rpmforge perl-Unicode-CheckUTF8.i386 1.03-1.el5.rf rpmforge perl-Unicode-Collate.noarch 0.52-1.el5.rf rpmforge perl-Unicode-Collate.i386 0.72-1.el5.rf rpmforge perl-Unicode-Decompose.i386 0.02-1.el5.rf rpmforge perl-Unicode-EastAsianWidth.noarch 1.30-1.el5.rf rpmforge perl-Unicode-Escape.noarch 0.0.2-1.el5.rf rpmforge perl-Unicode-IMAPUtf7.noarch 2.00-1.el5.rf rpmforge perl-Unicode-Indic.noarch 0.01-1.el5.rf rpmforge perl-Unicode-Japanese.i386 0.47-1.el5.rf rpmforge perl-Unicode-Lite.noarch 0.12-1.2.el5.rf rpmforge perl-Unicode-Map.i386 0.112-1.el5.rf rpmforge perl-Unicode-Map8.i386 0.13-1.el5.rf rpmforge perl-Unicode-MapUTF8.noarch 1.11-1.2.el5.rf rpmforge perl-Unicode-Normalize.i386 1.10-1.el5.rf rpmforge perl-Unicode-Overload.noarch 0.01-1.el5.rf rpmforge perl-Unicode-RecursiveDowngrade.noarch 0.04-1.el5.rf rpmforge perl-Unicode-Regex-Set.noarch 0.02-1.el5.rf rpmforge perl-Unicode-Semantics.noarch 1.02-1.el5.rf rpmforge perl-Unicode-String.i386 2.09-1.2.el5.rf rpmforge perl-Unicode-Transform.i386 0.40-1.el5.rf rpmforge perl-Unicode-Transliterate.i386 0.3-1.el5.rf rpmforge perl-Unicode-UTF8simple.noarch 1.06-1.el5.rf rpmforge perl-Unicode-Unihan.noarch 0.04-1.el5.rf rpmforge perl-Unicode-Wrap.noarch 0.03-1.el5.rf rpmforge rxvt-unicode.i386 9.07-1.el5.rf rpmforge y yum install perl-Unicode-Map - Mensaje original - De: Diego Sanchez dieg...@gmail.com Para: centos-es@centos.org Enviado: miércoles, 20 de julio de 2011 7:37 Asunto: [CentOS-es] xml2csv Hola a todos. Este es mi primer correo aca. Les comento el panorama: soy slackero, estoy estandarizando todo a a Debian en el trabajo o CentOS, segun el aplicativo utilizado y el nivel de conocimiento de los usuarios. El problema radica en que necesito trabajar con xml2csv, el cual instale a traves de EPEL. Sin embargo, durante la instalacion, me arroja problemas de dependencias. Como las resuelvo? Salvo perl(Locale::Recode), el resto la instale desde CPanel, pero al ejecutar nuevamente el install, sigue el error. Resolving Dependencies -- Running transaction check --- Package xls2csv.noarch 0:1.06-5.el5 set to be updated -- Processing Dependency: perl(Text::CSV_XS) for package: xls2csv -- Processing Dependency: perl(Spreadsheet::ParseExcel::FmtUnicode) for package: xls2csv -- Processing Dependency: perl(Unicode::Map) for package: xls2csv -- Processing Dependency: perl(Locale::Recode) for package: xls2csv -- Processing Dependency: perl(Spreadsheet::ParseExcel) for package: xls2csv -- Finished Dependency Resolution xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Unicode::Map) is needed by package xls2csv-1.06-5.el5.noarch (epel) xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Locale::Recode) is needed by package xls2csv-1.06-5.el5.noarch (epel) xls2csv-1.06-5.el5.noarch from epel has depsolving problems -- Missing Dependency: perl(Spreadsheet::ParseExcel::FmtUnicode) is needed by package
Re: [CentOS-es] xml2csv
El día 20 de julio de 2011 08:19, Salvador Guzman - Salman PSL informacio...@salman.es escribió: Utiliza el repositorio rpmforge alli tienes casi todas las dependencias de PERL. ( http://www.rubenortiz.es/2008/02/07/instalar-rpmforge-en-centos/ ) Salvador. Buen dia y gracias. Te comento que termine instalando xml2csv desde las fuentes y no da ningun problema. Como veo que el paquete es del 2005, asumo que no habra problemas con yum durante la actualizacion. Aun asi,es recomendable que lo instale desde yum? De esta manera, al actualizar el sistema, y en caso que salga alguna actualizacion, se vera reflejada. Asumo que al hacerlo, ademas reemplazara el binario, dependencias, y etcs. Es asi? -- Diego - Yo no soy paranoico! (pero que me siguen, me siguen) http://about.me/diegors/bio ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS-es] Configurar BIND varios dominios
On Wed, 2011-07-20 at 12:45 -0500, Viviana wrote: Amigos de la lista solicito su ayuda por favor. Alguien a probado configurar bind para varios dominios. Necesito configurar www.uno.com y www.dos.com en el servidor DNS, pero no hay mucha información al respecto. http://www.ecualug.org/2007/06/24/comos/configurar_un_servidor_dns_con_bind_en_centos5 saludos epe La mayoría publica información acerca de la configuración en APACHE y no dicen mucho de la configuración del DNS. Les estaré muy agradecida. Viviana ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS] CentOS 6 - VM network bridge issue (SOLVED)
Initial thought is a routing issue particularly with multiple NICs. What does 'ip r s' reveal? That was it! ip r s showed that I had the local facing NIC (eth1) as the gateway, which caused all outgoing packets to be routed to the local network DUH!. Yup been there before. So long as the local NIC doesn't need to hit any other internal subnets you'll be fine... otherwise don't forget to add the appropriate RFC1918 static routes to go out that interface with the default being the external one Also another thing to watch out for is asymmetric routing. If it is possible to get to a destination via either interface and due to routing issues elsewhere the packet does not return to the same interface through the same gateway you can get odd behaviour In which case you would need to set up policy routing rules to ensure stuff enters/leaves the right way... but dont' worry about that for now - just remember it for later if you get odd network behaviour ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On Wed, 20 Jul 2011, hadi motamedi wrote: If we cannot find the exact application name for centos, say MATLAB for centos does not exist, so we must search for 'Mathematics laboratory for centos' ? Or if Pspice for centos does not exist so we must search for 'Electronics circuit schematics editor and simulator for centos' ? If there any reference site that we can select centos application with respect to their functionality deffinition but not just the application name? Stop googling for CentOS. If you're looking for commercial packages, they'll either claim to support Redhat or just linux, but they're very unlikely to mention CentOS. But this problem isn't linux specific. How do you find matlab-like software for windows? jh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Recommended mailing list manager for CentOS 5.6
On 07/19/2011 09:32 PM Les Mikesell wrote: On 7/19/11 8:19 PM, David Lemcoe wrote: Mailman is probably what you want to use, because anyone who subscribes to any amount of mailing lists knows exactly how to use Mailman and it's features. One feature you are likely to miss, though, is a good search for the archives. If it is open to the public I suppose you can let google index it for you. Good point, Les. It's tedious to search mailman archives-- as I've seen them set up-- because it's necessary to run the search on each month's archives. It would be a lot friendlier to be able to do one search of the entire archives at once. Is there a way to set up mailman that way? -- When a society comes together and makes decisions in harmony, when it respects its most noble traditions, cares for its most vulnerable members, treats its forests and lands with respect, then it will prosper and not decline. --Buddha, Mahaparinirvana Sutra ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Recommended mailing list manager for CentOS 5.6
On 20.7.2011 4.32, Les Mikesell wrote: One feature you are likely to miss, though, is a good search for the archives. If it is open to the public I suppose you can let google index it for you. +1 If someone knows a fix, please share. Mailman 3 will most probably have searchable archives, but who knows when it will be out. https://launchpad.net/mailman/3.0 - Jussi ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On 7/20/11, John Hodrien j.h.hodr...@leeds.ac.uk wrote: On Wed, 20 Jul 2011, hadi motamedi wrote: If we cannot find the exact application name for centos, say MATLAB for centos does not exist, so we must search for 'Mathematics laboratory for centos' ? Or if Pspice for centos does not exist so we must search for 'Electronics circuit schematics editor and simulator for centos' ? If there any reference site that we can select centos application with respect to their functionality deffinition but not just the application name? Stop googling for CentOS. If you're looking for commercial packages, they'll either claim to support Redhat or just linux, but they're very unlikely to mention CentOS. But this problem isn't linux specific. How do you find matlab-like software for windows? jh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos You are right. But here, people use windows more than Linux. So hearing about MATLAB for windows comes natural. I need to switch completely to my centos so I need to do everything with my centos as I did them on my windows. It sounds a little bit hard to find one-one exact match between the application on windows and their equivalent on centos. Isn't it ? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On Wed, 20 Jul 2011, hadi motamedi wrote: *snip* So you've installed Octave but it's not as powerful as MATLAB on windows. I know this is crazy talk, but have you tried MATLAB on CentOS? There is no one-to-one relationship between applications on one OS and on another. Hi Hadi. If you are looking for Electronics and EDA things, why not take a look at the FEL - Fedora Electronics Lab spin: http://spins.fedoraproject.org/fel/#downloads You can d/l the FEL Live CD iso from here: http://archive.nl.eu.kernel.org/fedora-alt/spins/linux/releases/14/Spins/i686/ HTH Keith Roberts - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On Wed, 20 Jul 2011, hadi motamedi wrote: You are right. But here, people use windows more than Linux. So hearing about MATLAB for windows comes natural. I need to switch completely to my centos so I need to do everything with my centos as I did them on my windows. It sounds a little bit hard to find one-one exact match between the application on windows and their equivalent on centos. Isn't it ? In the case of matlab it's very easy: matlab. In the case of other specialist software, the point is every bit of software is different. If you know an exact bit of software meets your needs, you are the person best placed to know why. The rest of it is a case of searching google/yum/freshmeat using your domain specific knowledge as to exactly what you need. It would be exactly the same ball game if you were switching to using an Apple, or indeed if Mathworks stopped selling matlab on windows. jh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: matlab on CentOS (Re: firewall?)
On Wed, Jul 20, 2011 at 08:37:23AM +0430, hadi motamedi wrote: ... If we cannot find the exact application name for centos, say MATLAB for centos does not exist If you purchased your matlab for windows, I am sure that your software vendor is able to quote you a linux version. Have you looked at http://www.mathworks.com/products/matlab/requirements.html Tru -- Tru Huynh (mirrors, CentOS i386/x86_64 Package Maintenance) http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xBEFA581B pgpe5yHODIjfH.pgp Description: PGP signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Timothy Murphy wrote: Ljubomir Ljubojevic wrote: (1) I can open port 22 on the Billion, allowing me to ssh in from outside. But for some reason I cannot ping the same address from outside. This is due to modem refuses to answer to pings. You might have option to allow it in modem config. Ping (ICMP) does not use ports but it is packet of type 8. Thanks again for your response. Could CentOS be preventing me from pinging the system? Further to my question, how can I determine if it is the Billion 5200S modem/router that is preventing pings, or if it is the CentOS-6 MicroServer attached to the modem/router? I don't see any reference to ICMP on the modem web-page. On the other hand the CentOS firewall seems to allow ICMP unless explicitly rejected (which I haven't done). Surely it would be slightly odd for a modem/router to reject pings by default? Is there any simple way, short of using something like ethereal, of determining if ICMP packets are reaching the computer, and being rejected there? -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [OT] Apache oddity - appending garbage request does not result in a 404
On 7/19/2011 4:47 PM, John R Pierce wrote:
On 07/19/11 1:28 PM, Ray Leventhal wrote:
Example:http://www.domain.com/pagedoesnotexist returns the expected 404
But browse to a page that does exist, like goodpage.php, then append
either a slash and some random string, or a ?=somerandomstring and the
goodpage.php is still displayed.
I'll gladly provide more info, if needed. Any pointers on where to look
would be truly appreciated.
your php page should examine the arguments and if there's anythign there
unexpected, it should force the 404 via
{
header ('Location: '.$newReq);
header ('HTTP/1.0 404 Page Not Found');
die; // Don't send any more output.
}
or whatever...
Much obliged. I figured I could cure it with php, but was wondering if
apache was somehow mis-configured.
Thanks for the help!
-Ray
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Re: [CentOS] 2 questions on CentOS firewall
Timothy Murphy wrote: Further to my question, how can I determine if it is the Billion 5200S modem/router that is preventing pings, or if it is the CentOS-6 MicroServer attached to the modem/router? I don't see any reference to ICMP on the modem web-page. On the other hand the CentOS firewall seems to allow ICMP unless explicitly rejected (which I haven't done). Surely it would be slightly odd for a modem/router to reject pings by default? Is there any simple way, short of using something like ethereal, of determining if ICMP packets are reaching the computer, and being rejected there? ICMP packets are blocked by Billion, it's 99% chance, since public IP resides on the Billion. Only way (known to me) to pass ICMP to your CentOS server (on cheap modem/routers) is to do 1:1 NAT (all connections to all ports are redirected to system behind it with set IP). If you need to be able to ping CemtOS system and not Billion, then you should set modem to bridge mode and pass public IP to CentOS. But caveat is that this would mean that if you turn on CentOS firewall or set it improperly you would be wide open, and that you will not be able to willfully bypass CentOS server (if he is down) and just plug PC's to modem directly. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
On 20.7.2011 12:51, Timothy Murphy wrote: Further to my question, how can I determine if it is the Billion 5200S modem/router that is preventing pings, or if it is the CentOS-6 MicroServer attached to the modem/router? ... Is there any simple way, short of using something like ethereal, of determining if ICMP packets are reaching the computer, and being rejected there? I would use tcpdump on the CentOS Server to be sure the icmp echo requests are arriving or not. tcpdump is something like ethereal but it could be as easy as $ tcpdump -l proto \\icmp or $ tcpdump -l proto \\icmp and host sourceip or $ tcpdump -li ethX proto \\icmp or ... -- Kind Regards, Markus Falb signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
On Wed, 2011-07-20 at 14:21 +0200, Ljubomir Ljubojevic wrote: Ljubomir Ljubojevic (Love is in the Air) Congratulations. Are you planning to invite us to the wedding :-) -- With best regards, Paul. England, EU. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On Wednesday 20 July 2011 05:07:23 hadi motamedi wrote: If we cannot find the exact application name for centos, say MATLAB for centos does not exist, so we must search for 'Mathematics laboratory for centos' ? MATLAB stands for *matrix* laboratory, not mathematics. See http://en.wikipedia.org/wiki/MATLAB Searching for MATLAB on CentOS is too naive. Rather, you just want to keep in mind that CentOS is binary-compatibile with RHEL, go to the MATLAB website and find out that there is a supported version for RHEL: http://www.mathworks.com/support/sysreq/current_release/linux.html It costs about 2000 USD for a basic standalone installation (btw, the price is the same for Linux, Windows and Mac). The functionality of MATLAB for CentOS is completely equivalent to the one on Windows. There is no alternative (free or otherwise) version which will provide equivalent functionality. That said, there are alternative apps which are equivalently powerful, but there are always differences. HTH, :-) Marko ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
Marko Vojinovic wrote: On Wednesday 20 July 2011 05:07:23 hadi motamedi wrote: If we cannot find the exact application name for centos, say MATLAB for centos does not exist, so we must search for 'Mathematics laboratory for centos' ? MATLAB stands for *matrix* laboratory, not mathematics. See http://en.wikipedia.org/wiki/MATLAB Searching for MATLAB on CentOS is too naive. Rather, you just want to keep in mind that CentOS is binary-compatibile with RHEL, go to the MATLAB snip I'll guarantee that it runs just fine under CentOS. We have several installs running. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
On 7/20/2011 5:51 AM, Timothy Murphy wrote: Further to my question, how can I determine if it is the Billion 5200S modem/router that is preventing pings, or if it is the CentOS-6 MicroServer attached to the modem/router? I don't see any reference to ICMP on the modem web-page. On the other hand the CentOS firewall seems to allow ICMP unless explicitly rejected (which I haven't done). Surely it would be slightly odd for a modem/router to reject pings by default? Do you only have one public IP? This sort of router is generally configured to do one-many source nat for a private network behind it. For tcp and udp packets there are more specified fields (port/socket info) that can be used to map inbound packets to the right private target either with configured entries or the dynamically maintained NAT table. But there's no way to distinguish whether an inbound ping should be answered by the modem itself or passed through if you have specified a default 'dmz' target. GRE packets (as used in pptp or router tunnels) have a similar problem of not having documented info that can be used to track the source NAT when there are multiple active sessions, although some routers manage to do it using microsoft conventions in the packets. Is there any simple way, short of using something like ethereal, of determining if ICMP packets are reaching the computer, and being rejected there? A sniffer like tcpdump or wireshare is the simple way. However, note that these see packets before they hit the host's iptables firewall so even if you see packets arriving, they may not be reaching any applications. -- Les Mikesell lesmikes...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Always Learning wrote: On Wed, 2011-07-20 at 14:21 +0200, Ljubomir Ljubojevic wrote: Ljubomir Ljubojevic (Love is in the Air) Congratulations. Are you planning to invite us to the wedding :-) Hehehehe, no. My first name (Ljubomir) is old Slavic name that means He who loves peace, or peace lover. Based on that and my skills in IT, I was given nickname Dr.Love by a customer, now long time friend. It spread around and I grew to love it. And since my skill set expanded because of the wireless (in the air), and I am a disco generation, I borrowed a song name from John Paul Young as a signature for StarOS forums, and then LQ and now mailing lists.. It fits like a glove. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 - VM network bridge issue (SOLVED)
On 07/20/2011 01:24 AM, James Hogarth wrote: Initial thought is a routing issue particularly with multiple NICs. What does 'ip r s' reveal? That was it! ip r s showed that I had the local facing NIC (eth1) as the gateway, which caused all outgoing packets to be routed to the local network DUH!. Yup been there before. So long as the local NIC doesn't need to hit any other internal subnets you'll be fine... otherwise don't forget to add the appropriate RFC1918 static routes to go out that interface with the default being the external one Also another thing to watch out for is asymmetric routing. If it is possible to get to a destination via either interface and due to routing issues elsewhere the packet does not return to the same interface through the same gateway you can get odd behaviour In which case you would need to set up policy routing rules to ensure stuff enters/leaves the right way... but dont' worry about that for now - just remember it for later if you get odd network behaviour Thanks James, I keep it in mind, but by the time it happens I'll need Google again to find this thread :-) ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
Les Mikesell wrote: The biggest searchable, up to date collection of open source software project descriptions is probably http://freshmeat.net, but once you locate an interesting project you might want to see if you can find an RPM-packaged version at EPEL, rpmforge, etc. for easy installation and updates instead of trying to build from source yourself. I use http://rpm.pbone.net/ to search for CentOS/RHEL and Fedora packages. It says that there is matlab 7.4.0 rpm for Fedora 5 and 10-15. Fedora 5 version should be good for CentOS 5 , and Fedora 12 package for CentOS 6. Link for Fedora 5 package: http://apt.unl.edu/apt/fedora/redhat/5/i386/unl/RPMS/ -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
Ljubomir Ljubojevic wrote: Les Mikesell wrote: snip I use http://rpm.pbone.net/ to search for CentOS/RHEL and Fedora packages. It says that there is matlab 7.4.0 rpm for Fedora 5 and 10-15. snip Couple problems: first, it *is* COTS, and if you live in a country that cares, you could be in steep legal trouble. Second, MATLAB uses a license server; if you don't have a license, you can't use it. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On Wed, 20 Jul 2011, Ljubomir Ljubojevic wrote: I use http://rpm.pbone.net/ to search for CentOS/RHEL and Fedora packages. Valid. It says that there is matlab 7.4.0 rpm for Fedora 5 and 10-15. Fedora 5 version should be good for CentOS 5 , and Fedora 12 package for CentOS 6. Link for Fedora 5 package: http://apt.unl.edu/apt/fedora/redhat/5/i386/unl/RPMS/ Not in any way sensible, so don't go anywhere near this. This just looks like an indexed internal directory at a university full of packages you're really unlikely to want to install. It's old commercial software that won't work without a license. Matlab installs just fine on CentOS from the direct download from Mathworks. Packaging it up is also trivial. jh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Iptables - flooding console
Hi, We are trying to track some specific rules using LOG as target. Everything is working well but the problem is that iptables is flooding the console with LOG messages. We tried --log level 4 on iptables rules but it didn't work. We fixed the problem changing KLOGD_OPTIONS value in /etc/sysconfig/syslog to: KLOG_OPTIONS=-c 4 Is it the best option or we are missing something? Thanks in advance ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
We have CentOS 6 manual installation working by PXE booting from a RHEL5.6 PXE/TFTP server. However, when we add a Kickstart file in the PXE configuration: kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg then the CentOS 6 client install reports Unable to download the kickstart file. The console 3 reports failed to mount nfs source. We believe the NFS server is OK because we can install CentOS5 clients in this way. Perhaps this problem is related to this RHEL6 bug? https://bugzilla.redhat.com/show_bug.cgi?id=653655 However, on the centos list I see some people who apparently go Kickstart to work with CentOS 6 - but how did they do it? Question: What special configuration is required for either 1) PXE or 2) the DHCP server? Thanks, Ole -- Ole Holm Nielsen Department of Physics, Technical University of Denmark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
Ole Holm Nielsen wrote: We have CentOS 6 manual installation working by PXE booting from a RHEL5.6 PXE/TFTP server. However, when we add a Kickstart file in the PXE configuration: kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg then the CentOS 6 client install reports Unable to download the kickstart file. The console 3 reports failed to mount nfs source. We believe the NFS server is OK because we can install CentOS5 clients in this way. snip However, on the centos list I see some people who apparently go Kickstart to work with CentOS 6 - but how did they do it? Question: What special configuration is required for either 1) PXE or 2) the DHCP server? I just cloned the 5.6 install, and it worked. Well, kinda. You may have seen, or missed, the thread a couple weeks ago, about this: we do have a local repository, and comps.xml was missing. Then, having now switched to my new workstation, I found that window manager names changes (like KDE and Gnome), so they weren't installed, and for some reason, xorg was not a prerequisite. OO.o, btw, has had a group name change as well. mark, working his way through ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
Ole Holm Nielsen wrote: We have CentOS 6 manual installation working by PXE booting from a RHEL5.6 PXE/TFTP server. However, when we add a Kickstart file in the PXE configuration: kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg then the CentOS 6 client install reports Unable to download the kickstart file. The console 3 reports failed to mount nfs source. We believe the NFS server is OK because we can install CentOS5 clients in this way. snip However, on the centos list I see some people who apparently go Kickstart to work with CentOS 6 - but how did they do it? Question: What special configuration is required for either 1) PXE or 2) the DHCP server? I just cloned the 5.6 install, and it worked. Well, kinda. You may have seen, or missed, the thread a couple weeks ago, about this: we do have a local repository, and comps.xml was missing. Then, having now switched to my new workstation, I found that window manager names changes (like KDE and Gnome), so they weren't installed, and for some reason, xorg was not a prerequisite. OO.o, btw, has had a group name change as well. I fail to see how your repository problem is related to my Kickstart PXE/NFS problem. We can install CentOS 6 (no Kickstart) without problems using PXE. It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn is how others have made NFS/Kickstart work... /Ole ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SPAM on the List
On 17.7.2011 23:52, Ljubomir Ljubojevic wrote: Always Learning wrote: Do your Mail Transfer Agents use valid or bogus HELO/EHLO names ? Mine uses proper name, but then again I am one of the few in my country to offer POP3 on SSL port 465. And I am small local WISP. Probably you meant smtps (smtp over ssl) not pop3. -- Kind Regards, Markus Falb signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
On Wed, 20 Jul 2011, Ole Holm Nielsen wrote: I fail to see how your repository problem is related to my Kickstart PXE/NFS problem. We can install CentOS 6 (no Kickstart) without problems using PXE. It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn is how others have made NFS/Kickstart work... Is CentOS 6 assuming NFSv4 by default perhaps? Worth doing a tcpdump on your NFS server to see? jh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Iptables - flooding console
On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.com cbul...@gmail.com Subject: [CentOS] Iptables - flooding console Hi, We are trying to track some specific rules using LOG as target. Everything is working well but the problem is that iptables is flooding the console with LOG messages. We tried --log level 4 on iptables rules but it didn't work. We fixed the problem changing KLOGD_OPTIONS value in /etc/sysconfig/syslog to: KLOG_OPTIONS=-c 4 Is it the best option or we are missing something? Thanks in advance I had this problem as well. The firewall logs were being sent (tailed/tee'd ?) to the console, which is a pain if you are using mc or any other console application. To fix it on Centos 5.5/6 I just added the following to the top of the /etc/syslog.conf file. Deleted these lines as not in use: # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console Replaced with: # Log all firewall messages to a file. kern.=debug /var/log/firewall-log Obviously you need to make sure the firewall log file exists -rw-r--r-- keith users39039 Jul 20 15:24 firewall-log Kind Regards, Keith Roberts - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
On Wed, 20 Jul 2011, John Hodrien wrote: To: CentOS mailing list centos@centos.org From: John Hodrien j.h.hodr...@leeds.ac.uk Subject: Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file On Wed, 20 Jul 2011, Ole Holm Nielsen wrote: I fail to see how your repository problem is related to my Kickstart PXE/NFS problem. We can install CentOS 6 (no Kickstart) without problems using PXE. It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn is how others have made NFS/Kickstart work... Is CentOS 6 assuming NFSv4 by default perhaps? Worth doing a tcpdump on your NFS server to see? Yes. Also Wireshark GUI is your friend running on the NFS server, if you have a cutdown desktop to use it from? That should give you some indication in real time of the attempt to access the NFS server from your various clients. Kind Regards, Keith Roberts - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
On 07/20/2011 05:18 PM, John Hodrien wrote: On Wed, 20 Jul 2011, Ole Holm Nielsen wrote: I fail to see how your repository problem is related to my Kickstart PXE/NFS problem. We can install CentOS 6 (no Kickstart) without problems using PXE. It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn is how others have made NFS/Kickstart work... Is CentOS 6 assuming NFSv4 by default perhaps? According to the RHEL 6.0 Release Notes it is: Mounting a file system via NFS now defaults to NFSv4. Regards, Patrick ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] managing a rack full of centos servers
On Tue, Jul 19, 2011 at 6:00 PM, Fajar Priyanto fajar...@arinet.org wrote: On Wed, Jul 20, 2011 at 8:25 AM, Patrick Lists centos-l...@puzzled.xs4all.nl wrote: On 07/20/2011 02:03 AM, Fajar Priyanto wrote: Redhat satellite can handle it. Too bad I don't know if there is foss alternative for it. There is http://spacewalk.redhat.com/ They have it? Awesome! Thanks for the info!! Spacewalk is great, but be prepared for some significant configuration time and energy. Also, it requires Oracle (postgres is in progress last I checked). The free version of Oracle has a single processor limitation. I'd say about 20 systems is the threshold for when the up-front config time starts paying off. -- -- - Iain Morris iain.t.mor...@gmail.com ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] managing a rack full of centos servers
--On Tuesday, July 19, 2011 08:45:54 PM -0700 cool...@gmail.com wrote: On Jul 19, 2011 6:48 PM, Jay Leafey jay.lea...@mindless.com wrote: I usually use SSH keys in conjunction with ClusterSSH In the same vein, I instead recomend pdsh. Another variant that has been around a long time is pconsole. http://freshmeat.net/projects/pconsole This is a tool for executing the same command on many similar machines at once, and doesn't require anything to be on the target machines other than ssh. You get one master xterm, a bunch of slave xterms, and you can either type in the master to affect all nodes or selectively type in the slaves. It should be considered as complementing the automated config management tools like cfengine et al, not as a replacement for them (they're doing different jobs). pconsole is more intended for concurrent ad-hoc changes. The only thing to keep in mind with pconsole is screen real-estate. You can have your slave xterms small (like 40x4), but if you have more nodes than you can get slave xterms on your screen at one time, it's less effective. Devin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] SPAM on the List
Markus Falb wrote: On 17.7.2011 23:52, Ljubomir Ljubojevic wrote: Always Learning wrote: Do your Mail Transfer Agents use valid or bogus HELO/EHLO names ? Mine uses proper name, but then again I am one of the few in my country to offer POP3 on SSL port 465. And I am small local WISP. Probably you meant smtps (smtp over ssl) not pop3. -- Kind Regards, Markus Falb Yes, you are right. SMTPS. thinking one thing and writing another is not good. Nice catch, thanks. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
John Hodrien wrote: On Wed, 20 Jul 2011, Ljubomir Ljubojevic wrote: I use http://rpm.pbone.net/ to search for CentOS/RHEL and Fedora packages. Valid. It says that there is matlab 7.4.0 rpm for Fedora 5 and 10-15. Fedora 5 version should be good for CentOS 5 , and Fedora 12 package for CentOS 6. Link for Fedora 5 package: http://apt.unl.edu/apt/fedora/redhat/5/i386/unl/RPMS/ Not in any way sensible, so don't go anywhere near this. This just looks like an indexed internal directory at a university full of packages you're really unlikely to want to install. It's old commercial software that won't work without a license. Matlab installs just fine on CentOS from the direct download from Mathworks. Packaging it up is also trivial. OK. If it needs license, what would be the harm if you install (newer) version from rpm? Their source RPM is actually nosrc.rpm so they just package it for easier install. I was assuming this when I suggested the packages. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewall?
On Wed, 20 Jul 2011, Ljubomir Ljubojevic wrote: OK. If it needs license, what would be the harm if you install (newer) version from rpm? Their source RPM is actually nosrc.rpm so they just package it for easier install. I was assuming this when I suggested the packages. What I meant was, those were old RPMs. You'd buy a license and either install using the installer, or package up your own RPM. You wouldn't go near those. jh ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Iptables - flooding console
On 7/20/2011 10:18 AM, Keith Roberts wrote: On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.comcbul...@gmail.com Subject: [CentOS] Iptables - flooding console Hi, We are trying to track some specific rules using LOG as target. Everything is working well but the problem is that iptables is flooding the console with LOG messages. We tried --log level 4 on iptables rules but it didn't work. We fixed the problem changing KLOGD_OPTIONS value in /etc/sysconfig/syslog to: KLOG_OPTIONS=-c 4 Is it the best option or we are missing something? Thanks in advance I had this problem as well. The firewall logs were being sent (tailed/tee'd ?) to the console, which is a pain if you are using mc or any other console application. To fix it on Centos 5.5/6 I just added the following to the top of the /etc/syslog.conf file. Deleted these lines as not in use: # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console Replaced with: # Log all firewall messages to a file. kern.=debug /var/log/firewall-log Obviously you need to make sure the firewall log file exists -rw-r--r-- keith users39039 Jul 20 15:24 firewall-log Kind Regards, Thanks Keith, I tried your solution but it didn't work. (man 8 syslogd describes what you said) First I returned the default value on KLOG_OPTIONS, I restarted the syslog service but the iptables still continuous sending the log to console. I forget mention the info system: CentOS 5.6 [root@server_56 ~]# uname -r 2.6.18-238.el5 [root@server_56 ~]# iptables -V iptables v1.3.5 Sincerely, Julio ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] managing a rack full of centos servers
Iain Morris wrote: On Tue, Jul 19, 2011 at 6:00 PM, Fajar Priyanto fajar...@arinet.org wrote: On Wed, Jul 20, 2011 at 8:25 AM, Patrick Lists centos-l...@puzzled.xs4all.nl wrote: On 07/20/2011 02:03 AM, Fajar Priyanto wrote: Redhat satellite can handle it. Too bad I don't know if there is foss alternative for it. There is http://spacewalk.redhat.com/ They have it? Awesome! Thanks for the info!! Spacewalk is great, but be prepared for some significant configuration time and energy. Also, it requires Oracle (postgres is in progress last I checked). The free version of Oracle has a single processor limitation. snip Two and a quarter years ago, I got stuck with Spacewalk where I had a short-term contract, and it was a horror. (Note that while I was working on it, it went from 0.4 to 0.5) As Iain said, it requires Oracle, and I found I had to add an addition setting to Oracle - the free version has a max of 1G of memory, and I had to max it out (I think I set shared memory in Oracle's control panel to 994M), just to get it to work. It's also complex to configure and use, so if you're not looking at dozens or hundreds of machines, I wouldn't use it. mark ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] managing a rack full of centos servers
2011/7/20 m.r...@5-cent.us: Iain Morris wrote: On Tue, Jul 19, 2011 at 6:00 PM, Fajar Priyanto fajar...@arinet.org wrote: On Wed, Jul 20, 2011 at 8:25 AM, Patrick Lists centos-l...@puzzled.xs4all.nl wrote: On 07/20/2011 02:03 AM, Fajar Priyanto wrote: Redhat satellite can handle it. Too bad I don't know if there is foss alternative for it. There is http://spacewalk.redhat.com/ They have it? Awesome! Thanks for the info!! Spacewalk is great, but be prepared for some significant configuration time and energy. Also, it requires Oracle (postgres is in progress last I checked). The free version of Oracle has a single processor limitation. snip Two and a quarter years ago, I got stuck with Spacewalk where I had a short-term contract, and it was a horror. (Note that while I was working on it, it went from 0.4 to 0.5) As Iain said, it requires Oracle, and I found I had to add an addition setting to Oracle - the free version has a max of 1G of memory, and I had to max it out (I think I set shared memory in Oracle's control panel to 994M), just to get it to work. It's also complex to configure and use, so if you're not looking at dozens or hundreds of machines, I wouldn't use it. Oracle named user license is very cheap .. -- Eero ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] managing a rack full of centos servers
On 07/20/2011 06:11 PM, Iain Morris wrote: Spacewalk is great, but be prepared for some significant configuration time and energy. Also, it requires Oracle (postgres is in progress last I checked). From what I read the PostgreSQL support is functional for regular usage and has been improving significantly the last few releases. Worth a try if you don't want to fund Larry's next superyacht. Regards, Patrick ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] NetApp DataFabric Manager/Sybase/SQLAnywhere on CentOS?
Hello, Has anyone out there successfully installed NetApp's DataFabric Manager (DFM) on CentOS? If so, what version of DFM, CentOS, and what architecture? I am trying to install DFM 4.0.2, and have tried on both CentOS 4.8 i386 and CentOS 5.5 x86_64. I have edited my /etc/redhat-release file to be equal to RHEL's, as the DFM installer immediately aborts if that isn't right. However, I still have errors during the install: Enter your NetApp DataFabric Manager license key [?,q]: entered my key Beginning the installation ... Preparing...### [100%] 1:NTAPdfm### [100%] Installing scripts in /etc/init.d directory. Configuring DataFabric Manager server services. Setting up sql ... Starting SQL ... Communication error error: %post(NTAPdfm-3.8-6640.i386) scriptlet failed, exit status 1 /var/log/messages has this: [ ... ] Jul 19 12:58:10 lnxsvr41 SQLAnywhere(monitordb): 16 logical processor(s) on 2 physical processor(s) detected. Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Per-processor licensing model. The server is licensed to use 2 physical processor(s). Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): This server is licensed to: Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): DFM User Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): NetApp Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Running Linux 2.6.9-89.0.25.ELsmp #1 SMP Thu May 6 12:28:03 EDT 2010 on X86 (X86_64) Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Server built for X86 processor architecture Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Asynchronous IO disabled due to lack of proper OS support Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Maximum cache size adjusted to 1670312K Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Authenticated Server licensed for use with Authenticated Applications only Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): 8192K of memory used for caching Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Minimum cache size: 8192K, maximum cache size: 1670312K Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Using a maximum page size of 8192 bytes Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): TCP/IP functions not found Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Database server shutdown due to startup error Looks like the problem is with SQLAnywhere, which appears to be a Sybase product. Anyone been down this road? So far NetApp is stonewalling me on CentOS support. Thanks, Matt ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] NetApp DataFabric Manager/Sybase/SQLAnywhere on CentOS?
I am trying to install DFM 4.0.2, and have tried on both CentOS 4.8 i386 and CentOS 5.5 x86_64. I have edited my /etc/redhat-release file to be equal to RHEL's, as the DFM installer immediately aborts if that isn't right. However, I still have errors during the install: ... Communication error error: %post(NTAPdfm-3.8-6640.i386) scriptlet failed, exit status 1 ... Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Running Linux 2.6.9-89.0.25.ELsmp #1 SMP Thu May 6 12:28:03 EDT 2010 on X86 (X86_64) Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Server built for X86 processor architecture Jul 19 12:58:11 lnxsvr41 SQLAnywhere(monitordb): Asynchronous IO disabled due to lack of proper OS support You said you tried 4.8 32bit and 5.5 64bit. how about 5.6 32bit? The era would be about right on C5 and it's obviously looking for 32bit libraries and architecture What do the docs and NetApp say about RHEL support? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Iptables - flooding console
On Wed, Jul 20, 2011 at 9:40 AM, cbul...@gmail.com cbul...@gmail.comwrote: On 7/20/2011 10:18 AM, Keith Roberts wrote: On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.comcbul...@gmail.com Subject: [CentOS] Iptables - flooding console Hi, We are trying to track some specific rules using LOG as target. Everything is working well but the problem is that iptables is flooding the console with LOG messages. We tried --log level 4 on iptables rules but it didn't work. We fixed the problem changing KLOGD_OPTIONS value in /etc/sysconfig/syslog to: KLOG_OPTIONS=-c 4 Is it the best option or we are missing something? Thanks in advance I had this problem as well. The firewall logs were being sent (tailed/tee'd ?) to the console, which is a pain if you are using mc or any other console application. To fix it on Centos 5.5/6 I just added the following to the top of the /etc/syslog.conf file. Deleted these lines as not in use: # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console Replaced with: # Log all firewall messages to a file. kern.=debug /var/log/firewall-log Obviously you need to make sure the firewall log file exists -rw-r--r-- keith users39039 Jul 20 15:24 firewall-log Kind Regards, Thanks Keith, I tried your solution but it didn't work. (man 8 syslogd describes what you said) First I returned the default value on KLOG_OPTIONS, I restarted the syslog service but the iptables still continuous sending the log to console. I forget mention the info system: CentOS 5.6 [root@server_56 ~]# uname -r 2.6.18-238.el5 [root@server_56 ~]# iptables -V iptables v1.3.5 Sincerely, Julio ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos We prevent firewall messages from being logged to the console by setting kernel.printk in sysctl.conf. kernel.printk = 3 4 1 7 Daniel ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Iptables - flooding console
On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.com cbul...@gmail.com Subject: Re: [CentOS] Iptables - flooding console On 7/20/2011 10:18 AM, Keith Roberts wrote: On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.comcbul...@gmail.com Subject: [CentOS] Iptables - flooding console Hi, We are trying to track some specific rules using LOG as target. Everything is working well but the problem is that iptables is flooding the console with LOG messages. We tried --log level 4 on iptables rules but it didn't work. We fixed the problem changing KLOGD_OPTIONS value in /etc/sysconfig/syslog to: KLOG_OPTIONS=-c 4 Is it the best option or we are missing something? Thanks in advance I had this problem as well. The firewall logs were being sent (tailed/tee'd ?) to the console, which is a pain if you are using mc or any other console application. To fix it on Centos 5.5/6 I just added the following to the top of the /etc/syslog.conf file. Deleted these lines as not in use: # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console Replaced with: # Log all firewall messages to a file. kern.=debug /var/log/firewall-log Obviously you need to make sure the firewall log file exists -rw-r--r-- keith users39039 Jul 20 15:24 firewall-log Kind Regards, Thanks Keith, I tried your solution but it didn't work. (man 8 syslogd describes what you said) First I returned the default value on KLOG_OPTIONS, I restarted the syslog service but the iptables still continuous sending the log to console. I forget mention the info system: CentOS 5.6 [root@server_56 ~]# uname -r 2.6.18-238.el5 [root@server_56 ~]# iptables -V iptables v1.3.5 OK Julio. There was a kernel update last night, so here's what my 5.6 box has got on it: [root@karsites ~]# uname -r 2.6.18-238.19.1.el5 [root@karsites ~]# iptables -V iptables v1.3.5 my /etc/sysconfig/syslog file is untouched by me: ### # Options to syslogd # -m 0 disables 'MARK' messages. # -r enables logging from remote machines # -x disables DNS lookups on messages recieved with -r # See syslogd(8) for more details SYSLOGD_OPTIONS=-m 0 # Options to klogd # -2 prints all kernel oops messages twice; once for klogd to decode, and #once for processing with 'ksymoops' # -x disables all klogd processing of oops messages entirely # See klogd(8) for more details KLOGD_OPTIONS=-x # SYSLOG_UMASK=077 # set this to a umask value to use for all log files as in umask(1). # By default, all permissions are removed for group and other. # The only file I alter is /etc/syslog.conf which contains: # # Log all firewall messages to a file. kern.=debug/var/log/firewall-log # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none /var/log/messages # The authpriv file has restricted access. authpriv.* /var/log/secure # Log all the mail messages in one place. mail.*-/var/log/maillog # Log cron stuff cron.*/var/log/cron # Everybody gets emergency messages *.emerg * # Save news errors of level crit and higher in a special file. uucp,news.crit /var/log/spooler # Save boot messages also to boot.log local7.* /var/log/boot.log # and my IPtables rules for logging packets are: #--# # create a new chain for apache connections #--# iptables -N open_port_80 # LOG all local connections to apache port 80 iptables -A open_port_80 ! -i eth0 -p tcp --dport 80 \ -j LOG --log-level 7 --log-prefix 'Local Port 80 connects ' # ACCEPT all local connections to apache port 80 iptables -A open_port_80 ! -i eth0 -p tcp --dport 80 -j ACCEPT #--# Here's what I get in my firewall-log file. Just did a connect from localhost to check it's all working OK. Jul 20 18:47:07 karsites kernel: Local Port 80 connects IN=lo OUT= MAC=00:00 :00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS= 0x00 PREC=0x00 TTL=64 ID=40422 DF PROTO=TCP SPT=59791 DPT=80 WINDOW=386 RES= 0x00 ACK FIN URGP=0 Maybe you need to take another look at your IPtables logging rule? Kind Regards, Keith - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org
Re: [CentOS] managing a rack full of centos servers
On 07/20/11 10:12 AM, Eero Volotinen wrote: Oracle named user license is very cheap .. but if you read the license, every single node that generates data is considered a 'user', even if it goes through a webservice or other form of 'data concentrator' and doesn't directly connect to SQL. -- john r pierceN 37, W 122 santa cruz ca mid-left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Iptables - flooding console
On 7/20/2011 12:52 PM, Keith Roberts wrote: On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.comcbul...@gmail.com Subject: Re: [CentOS] Iptables - flooding console On 7/20/2011 10:18 AM, Keith Roberts wrote: On Wed, 20 Jul 2011, cbul...@gmail.com wrote: To: centos@centos.org From: cbul...@gmail.comcbul...@gmail.com Subject: [CentOS] Iptables - flooding console Hi, We are trying to track some specific rules using LOG as target. Everything is working well but the problem is that iptables is flooding the console with LOG messages. We tried --log level 4 on iptables rules but it didn't work. We fixed the problem changing KLOGD_OPTIONS value in /etc/sysconfig/syslog to: KLOG_OPTIONS=-c 4 Is it the best option or we are missing something? Thanks in advance I had this problem as well. The firewall logs were being sent (tailed/tee'd ?) to the console, which is a pain if you are using mc or any other console application. To fix it on Centos 5.5/6 I just added the following to the top of the /etc/syslog.conf file. Deleted these lines as not in use: # Log all kernel messages to the console. # Logging much else clutters up the screen. #kern.* /dev/console Replaced with: # Log all firewall messages to a file. kern.=debug /var/log/firewall-log Obviously you need to make sure the firewall log file exists -rw-r--r-- keith users39039 Jul 20 15:24 firewall-log Kind Regards, Thanks Keith, I tried your solution but it didn't work. (man 8 syslogd describes what you said) First I returned the default value on KLOG_OPTIONS, I restarted the syslog service but the iptables still continuous sending the log to console. I forget mention the info system: CentOS 5.6 [root@server_56 ~]# uname -r 2.6.18-238.el5 [root@server_56 ~]# iptables -V iptables v1.3.5 OK Julio. There was a kernel update last night, so here's what my 5.6 box has got on it: [root@karsites ~]# uname -r 2.6.18-238.19.1.el5 [root@karsites ~]# iptables -V iptables v1.3.5 my /etc/sysconfig/syslog file is untouched by me: ### # Options to syslogd # -m 0 disables 'MARK' messages. # -r enables logging from remote machines # -x disables DNS lookups on messages recieved with -r # See syslogd(8) for more details SYSLOGD_OPTIONS=-m 0 # Options to klogd # -2 prints all kernel oops messages twice; once for klogd to decode, and #once for processing with 'ksymoops' # -x disables all klogd processing of oops messages entirely # See klogd(8) for more details KLOGD_OPTIONS=-x # SYSLOG_UMASK=077 # set this to a umask value to use for all log files as in umask(1). # By default, all permissions are removed for group and other. # The only file I alter is /etc/syslog.conf which contains: # # Log all firewall messages to a file. kern.=debug/var/log/firewall-log # Log anything (except mail) of level info or higher. # Don't log private authentication messages! *.info;mail.none;authpriv.none;cron.none /var/log/messages # The authpriv file has restricted access. authpriv.* /var/log/secure # Log all the mail messages in one place. mail.*-/var/log/maillog # Log cron stuff cron.*/var/log/cron # Everybody gets emergency messages *.emerg * # Save news errors of level crit and higher in a special file. uucp,news.crit /var/log/spooler # Save boot messages also to boot.log local7.* /var/log/boot.log # and my IPtables rules for logging packets are: #--# # create a new chain for apache connections #--# iptables -N open_port_80 # LOG all local connections to apache port 80 iptables -A open_port_80 ! -i eth0 -p tcp --dport 80 \ -j LOG --log-level 7 --log-prefix 'Local Port 80 connects ' # ACCEPT all local connections to apache port 80 iptables -A open_port_80 ! -i eth0 -p tcp --dport 80 -j ACCEPT #--# Here's what I get in my firewall-log file. Just did a connect from localhost to check it's all working OK. Jul 20 18:47:07 karsites kernel: Local Port 80 connects IN=lo OUT= MAC=00:00 :00:00:00:00:00:00:00:00:00:00:08:00 SRC=127.0.0.1 DST=127.0.0.1 LEN=52 TOS= 0x00 PREC=0x00 TTL=64 ID=40422 DF PROTO=TCP SPT=59791 DPT=80 WINDOW=386 RES= 0x00 ACK FIN URGP=0 Maybe you need to take another look at your IPtables logging rule? Kind Regards, Keith - Keith and Daniel, Thanks so much for your help!. Keith you are right. I had --log-level 4 in the iptables rules because I played with that option in order to fix the problem. Now, it's working well. I didn't update the kernel. Sincerely, Julio
[CentOS] Script to sync with repo
under 5.6 I have a script that runs every night to rsync the repodata for local installations. I added the 6.0 to do the same. Something seems wrong now for 6.0. I do the same thing and I get errors from my local repo at install time. Seems like the cyrus-sasl package is never happy and aborts the installation. Is something wrong with the script below? It seems like it successfully copies the files. I ran it manually and did not see any errors. Any thoughts? Thanks, Jerry # The kickstart files point to the repo # # This file will creat the directories and copy the files # for VERSION in 5.6 6.0 do mkdir -p /var/www/html/centos/$VERSION/updates/x86_64/RPMS mkdir -p /var/www/html/centos/$VERSION/updates/x86_64/repodata rsync -av rsync://mirrors.kernel.org/mirrors/centos/$VERSION/updates/x86_64/RPMS/* /var/www/html/centos/$VERSION/updates/x86_64/RPMS rsync -av rsync://mirrors.kernel.org/mirrors/centos/$VERSION/updates/x86_64/repodata/* /var/www/html/centos/$VERSION/updates/x86_64/repodata done ~ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Markus Falb wrote: I would use tcpdump on the CentOS Server to be sure the icmp echo requests are arriving or not. tcpdump is something like ethereal but it could be as easy as $ tcpdump -l proto \\icmp or $ tcpdump -l proto \\icmp and host sourceip or $ tcpdump -li ethX proto \\icmp or ... Thanks for the instructions. Nothing seems to get through: -- [tim@helen ~]$ ping anghiari.homelinux.com PING anghiari.homelinux.com (79.46.6.203) 56(84) bytes of data. --- anghiari.homelinux.com ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2000ms -- -- [root@alfred tim]# tcpdump -l proto \\icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes -- So I assume the modem is rejecting the ICMP packets. As I said, I don't see anything about this in the modem documentation or on the modem web-site. -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Timothy Murphy wrote: Markus Falb wrote: I would use tcpdump on the CentOS Server to be sure the icmp echo requests are arriving or not. tcpdump is something like ethereal but it could be as easy as $ tcpdump -l proto \\icmp or $ tcpdump -l proto \\icmp and host sourceip or $ tcpdump -li ethX proto \\icmp or ... Thanks for the instructions. Nothing seems to get through: -- [tim@helen ~]$ ping anghiari.homelinux.com PING anghiari.homelinux.com (79.46.6.203) 56(84) bytes of data. --- anghiari.homelinux.com ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2000ms -- -- [root@alfred tim]# tcpdump -l proto \\icmp tcpdump: verbose output suppressed, use -v or -vv for full protocol decode listening on eth0, link-type EN10MB (Ethernet), capture size 65535 bytes -- So I assume the modem is rejecting the ICMP packets. As I said, I don't see anything about this in the modem documentation or on the modem web-site. ICMP packet always reaches the system with destination IP, unless it was purposely redirected by the system with the IP. In your case this is modem/router, so he responds. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Ljubomir Ljubojevic wrote: ICMP packets are blocked by Billion, it's 99% chance, since public IP resides on the Billion. Only way (known to me) to pass ICMP to your CentOS server (on cheap modem/routers) is to do 1:1 NAT (all connections to all ports are redirected to system behind it with set IP). If you need to be able to ping CemtOS system and not Billion, then you should set modem to bridge mode and pass public IP to CentOS. But caveat is that this would mean that if you turn on CentOS firewall or set it improperly you would be wide open, and that you will not be able to willfully bypass CentOS server (if he is down) and just plug PC's to modem directly. Thanks for the response. I don't really mind if external sites cannot ping the machine; I was just a little surprised at this, particularly as I didn't see anything about it in the documentation. I'll try asking on the Billion site. -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Variable assigned to grep output - missing letter n!
This is kind of odd. [scarolan@host:~]$ cat loremipsum.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia fermentum, enim erat placerat erat, vel imperdiet lorem velit et ligula. Nam congue est in nisl lacinia lobortis. Vivamus elementum lacinia sodales. Curabitur commodo risus tincidunt augue pulvinar vehicula. Morbi eget velit sollicitudin nibh porta molestie. Maecenas in augue id quam ullamcorper rutrum. [scarolan@host:~]$ vi loremipsum.txt [scarolan@host:~]$ myvar=$(grep lorem loremipsum.txt) [scarolan@host:~]$ echo $myvar Lorem ipsum dolor sit amet, co sectetur adipisci g elit. Do ec quis ipsum sed elit laoreet malesuada. Quisque rho cus dui vitae eros euismod ferme tum sollicitudi sem scelerisque. Nulla facilisi. Maece as mollis pulvi ar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae laci ia ferme tum, e im erat placerat erat, vel imperdiet lorem velit et ligula. Nam co gue est i isl laci ia lobortis. Vivamus eleme tum laci ia sodales. Curabitur commodo risus ti cidu t augue pulvi ar vehicula. Morbi eget velit sollicitudi ibh porta molestie. Maece as i augue id quam ullamcorper rutrum. Where did all the letter n's go? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Script to sync with repo
for VERSION in 5.6 6.0 Check your httpd error log for a 404:) Just a WAG, I presume you modified your 5x installs to not look in the default 5 location, where point releases get symlinked too once they are current. Your 6.0 install looks for a 6 directory. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Script to sync with repo
Also try an invocation of rsync with the checksum flag; that'll catch any files that might be corrupted. It does increase server load and rsync run time, though, so you should probably disable it again afterwards. Devin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Variable assigned to grep output - missing letter n!
On Wednesday, July 20, 2011 03:23:58 PM Sean Carolan wrote: [snip] Where did all the letter n's go? I can't duplicate the problem here on a CentOS 5.6 box. What locale are you set to? Here's what I get (note that a copy from the e-mail you sent embedded newlines, which had to be stripped out (one of the many things xargs makes trivially easy) to get the result): $ cat loremipsum.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia fermentum, enim erat placerat erat, vel imperdiet lorem velit et ligula. Nam congue est in nisl lacinia lobortis. Vivamus elementum lacinia sodales. Curabitur commodo risus tincidunt augue pulvinar vehicula. Morbi eget velit sollicitudin nibh porta molestie. Maecenas in augue id quam ullamcorper rutrum. $ myvar=$(grep lorem loremipsum.txt) $ echo $myvar fermentum, enim erat placerat erat, vel imperdiet lorem velit et $ mv loremipsum.txt lorem-newlines.txt $ cat lorem-newlines.txt |xargs -n 100 Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia fermentum, enim erat placerat erat, vel imperdiet lorem velit et ligula. Nam congue est in nisl lacinia lobortis. Vivamus elementum lacinia sodales. Curabitur commodo risus tincidunt augue pulvinar vehicula. Morbi eget velit sollicitudin nibh porta molestie. Maecenas in augue id quam ullamcorper rutrum. $ cat lorem-newlines.txt |xargs -n 100 loremipsum.txt $ myvar=$(grep lorem loremipsum.txt) $ echo $myvar Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia fermentum, enim erat placerat erat, vel imperdiet lorem velit et ligula. Nam congue est in nisl lacinia lobortis. Vivamus elementum lacinia sodales. Curabitur commodo risus tincidunt augue pulvinar vehicula. Morbi eget velit sollicitudin nibh porta molestie. Maecenas in augue id quam ullamcorper rutrum. $ ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Script to sync with repo
It does increase server load and rsync run time, though, so you should probably disable it again afterwards. That's why most repo's don't allow the use of it, I use the same master as you Jerry, and they are certainly far too large to allow that. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot: Unable to download the kickstart file
Patrick Lists wrote: I fail to see how your repository problem is related to my Kickstart PXE/NFS problem. We can install CentOS 6 (no Kickstart) without problems using PXE. It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn is how others have made NFS/Kickstart work... Is CentOS 6 assuming NFSv4 by default perhaps? According to the RHEL 6.0 Release Notes it is: Mounting a file system via NFS now defaults to NFSv4. Yes, this sounds like the correct explanation! Our RHEL5.6 PXE/TFTP/NFS server is certainly configured for NFSv3. I haven't explored the NFSv4 approach though. How can we tweak the CentOS6 Kickstart installation to explicitly request an NFSv3 service in the PXE config file: kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg To rephrase my question: Where do we find documentation for the vmlinuz append flags shown above, in particular documentation of the ks=... flags? Hopefully there'll be some way to force an NFSv3 mount in stead of the default NFSv4? Or perhaps we need to use http: and stop using nfs: with CentOS6? Thanks, Ole ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Variable assigned to grep output - missing letter n!
2011/7/20 Lamar Owen lo...@pari.edu: On Wednesday, July 20, 2011 03:23:58 PM Sean Carolan wrote: [snip] Where did all the letter n's go? I can't duplicate the problem here on a CentOS 5.6 box. What locale are you set to? Here's what I get (note that a copy from the e-mail you sent embedded newlines, which had to be stripped out (one of the many things xargs makes trivially easy) to get the result): Here's a simpler example, with a single line in the file: [scarolan@server:~]$ cat loremipsum.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. n n n n n lots of letter n! [scarolan@server:~]$ myvar=$(grep Lorem loremipsum.txt) [scarolan@server:~]$ echo $myvar Lorem ipsum dolor sit amet, co sectetur adipisci g elit. lots of letter ! Weird huh? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Variable assigned to grep output - missing letter n!
Sean Carolan wrote: This is kind of odd. [scarolan@host:~]$ cat loremipsum.txt Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec quis ipsum sed elit laoreet malesuada. Quisque rhoncus dui vitae eros euismod fermentum sollicitudin sem scelerisque. Nulla facilisi. Maecenas mollis pulvinar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae lacinia fermentum, enim erat placerat erat, vel imperdiet lorem velit et ligula. Nam congue est in nisl lacinia lobortis. Vivamus elementum lacinia sodales. Curabitur commodo risus tincidunt augue pulvinar vehicula. Morbi eget velit sollicitudin nibh porta molestie. Maecenas in augue id quam ullamcorper rutrum. [scarolan@host:~]$ vi loremipsum.txt [scarolan@host:~]$ myvar=$(grep lorem loremipsum.txt) [scarolan@host:~]$ echo $myvar Lorem ipsum dolor sit amet, co sectetur adipisci g elit. Do ec quis ipsum sed elit laoreet malesuada. Quisque rho cus dui vitae eros euismod ferme tum sollicitudi sem scelerisque. Nulla facilisi. Maece as mollis pulvi ar euismod. Duis viverra pharetra turpis eget feugiat. Nulla facilisi. Nullam facilisis, felis vitae laci ia ferme tum, e im erat placerat erat, vel imperdiet lorem velit et ligula. Nam co gue est i isl laci ia lobortis. Vivamus eleme tum laci ia sodales. Curabitur commodo risus ti cidu t augue pulvi ar vehicula. Morbi eget velit sollicitudi ibh porta molestie. Maece as i augue id quam ullamcorper rutrum. Where did all the letter n's go? 1. What does grep lorem loremipsum.txt say? 2. What does echo loremipsum.txt | grep lorem say? -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Variable assigned to grep output - missing letter n!
[scarolan@server:~]$ echo $myvar Lorem ipsum dolor sit amet, co sectetur adipisci g elit. lots of letter ! Weird huh? Ok, I'm a bonehead; I had this in my bash history: IFS='\n' That seems to have been the cause of the missing n's. Now the next question would be, how can I include the \n characters in my variable string, without fudging with $IFS? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Iptables - flooding console
On Wed, 20 Jul 2011, cbul...@gmail.com wrote: *snip* Keith and Daniel, Thanks so much for your help!. Keith you are right. I had --log-level 4 in the iptables rules because I played with that option in order to fix the problem. Now, it's working well. I didn't update the kernel. Hi Julio. Very pleased to hear you have it working now. It's also nice to be right for a change - if only life was as simple as writing IPtables rules ;) Kind Regards, Keith Roberts - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Memory Usage in Top and System Monitor
Can someone help clear up some confusion in reading memory usage in Top and System monitor. Here is a picture of both. http://s1176.photobucket.com/albums/x327/ionosphere2011/ Why does System Monitor show 1.7gb free out of 8gb. While Top shows all 8gb being used? If 1.7gb is free then it should not be using swap space so I assume System Monitor is reporting it incorrectly? Thanks -- Mike ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Script to sync with repo
On Wed, 20 Jul 2011, Jerry Geis wrote:
under 5.6 I have a script that runs every night to rsync the repodata
for local installations.
I added the 6.0 to do the same.
Something seems wrong now for 6.0. I do the same thing and I get errors
from my local repo at install time.
Seems like the cyrus-sasl package is never happy and aborts the
installation.
Is something wrong with the script below? It seems like it successfully
copies the files.
I ran it manually and did not see any errors.
Any thoughts?
Thanks,
Jerry
# The kickstart files point to the repo
#
# This file will creat the directories and copy the files
#
for VERSION in 5.6 6.0
do
mkdir -p /var/www/html/centos/$VERSION/updates/x86_64/RPMS
mkdir -p /var/www/html/centos/$VERSION/updates/x86_64/repodata
rsync -av
rsync://mirrors.kernel.org/mirrors/centos/$VERSION/updates/x86_64/RPMS/*
/var/www/html/centos/$VERSION/updates/x86_64/RPMS
rsync -av
rsync://mirrors.kernel.org/mirrors/centos/$VERSION/updates/x86_64/repodata/*
/var/www/html/centos/$VERSION/updates/x86_64/repodata
done
Here's my script. Obviously, it picks up the os/ tree as well as the
updates/ tree. So far, no problems with 5.x or 6.x:
#!/bin/sh
for VERS in 5.6 6.0; do
SRC=ftp.osuosl.org::centos/${VERS}/
DEST=/srv/mirrors/centos/${VERS}/
echo ---
echo Sync-ing CentOS $VERS with $SRC
echo
/usr/bin/rsync -avSH \
--exclude isos --exclude centosplus --exclude extras \
$SRC $DEST
echo ---
done
--
Paul Heinlein heinl...@madboa.com http://www.madboa.com/
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[CentOS] Refurbished Dell Servers (fwd)
Just got this from another mailing list, just in case anyone here might be interested? Keith Roberts - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - -- Forwarded message -- To: ke...@karsites.net From: Web Hosting Talk em...@inetinteractive-email.com Subject: Refurbished Dell Servers Web Hosting Talk Host Brief - 2011Jul20 - Apto Host Brief If you are having trouble viewing this email, http://click.inetinteractive-email.com/?qs=cc50bf36287ad5678e3ec13e6ca486e5d27b21fe27914a2cb17788bf8ba194a1 view it online As a Web Hosting Talk member, we'd like to offer you this special message from one of our partners. Apto Solutions http://click.inetinteractive-email.com/?qs=cc50bf36287ad56771e0ba40e223be2cd3e7d08ea0bb30a4413fa5433be28305 Full racks available. Tested and guaranteed. Each 2U rack-mounted chassis contains: - Four server nodes - Eight (8) Xeon 5420 SLARP Processors - Sixteen (16) 4Gb PC2-5300 DIMMs - Eight 3.5 750Gb SATA HDDs Supply is limited. Contact us today. Call Us: 1.855.ASK.APTO Email us: mailto:i...@aptosolutions.com i...@aptosolutions.com Visit our site: http://click.inetinteractive-email.com/?qs=cc50bf36287ad56771e0ba40e223be2cd3e7d08ea0bb30a4413fa5433be28305 www.aptosolutions.com/poweredge.aspx http://click.inetinteractive-email.com/?qs=cc50bf36287ad56771e0ba40e223be2cd3e7d08ea0bb30a4413fa5433be28305 Apto Solutions is the source for all of your IT equipment needs. Your trusted solution for quality, fully-tested, pre-owned surplus new IT equipment. We are a leading global asset recovery service provider with large leasing, corporate, and government contracts. We are THE SOURCE for the secondary market. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory Usage in Top and System Monitor
On 07/20/2011 02:56 PM, Michael McNulty wrote: Can someone help clear up some confusion in reading memory usage in Top and System monitor. Here is a picture of both. http://s1176.photobucket.com/albums/x327/ionosphere2011/ mailto:centos@centos.org Why does System Monitor show 1.7gb free out of 8gb. While Top shows all 8gb being used? If 1.7gb is free then it should not be using swap space so I assume System Monitor is reporting it incorrectly? Take a look at the output from the 'free' command. In the first line of memory usage numbers, buffer memory and cache memory is included in the used category. For the numbers in the +/- buffers/cache line, buffer and cache memory is considered free since it can easily be used to satisfy memory requests. The 'top' command shows just that first set of numbers. System Monitor shows the more meaningful number from the second line. -- Bob Nichols NOSPAM is really part of my email address. Do NOT delete it. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Timothy Murphy wrote: So I assume the modem is rejecting the ICMP packets. As I said, I don't see anything about this in the modem documentation or on the modem web-site. I suppose another possibility is that some site along the way rejects ICMP packets? traceroute seems to timeout in Milan: --- [root@helen tim]# traceroute anghiari.homelinux.com traceroute to anghiari.homelinux.com (79.46.6.203), 30 hops max, 40 byte packets 1 netopia (192.168.1.254) 0.951 ms 1.132 ms 1.389 ms 2 isp (159.134.155.19) 37.238 ms 39.560 ms 42.027 ms ... 12 telecomitalia.par02.atlas.cogentco.com (130.117.14.82) 67.140 ms telecomitalia.par02.atlas.cogentco.com (130.117.15.138) 92.952 ms ibs- resid.milano50.mil.seabone.net (93.186.128.246) 87.098 ms 13 * * * ... 30 * * * --- tcptraceroute gets to the modem, but after some timeouts: --- [root@helen tim]# tcptraceroute anghiari.homelinux.com traceroute to anghiari.homelinux.com (79.46.6.203), 30 hops max, 40 byte packets 1 netopia (192.168.1.254) 1.491 ms 1.534 ms 1.784 ms 2 isp (159.134.155.19) 36.195 ms 38.794 ms 41.328 ms ... 12 ibs-resid.milano50.mil.seabone.net (93.186.128.246) 85.084 ms 84.599 ms 86.881 ms 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 host203-6-dynamic.46-79-r.retail.telecomitalia.it (79.46.6.203) 115.381 ms 107.416 ms 114.875 ms --- If anyone can interpret these for me, I shall be grateful. -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory Usage in Top and System Monitor
Robert Nichols wrote: On 07/20/2011 02:56 PM, Michael McNulty wrote: Can someone help clear up some confusion in reading memory usage in Top and System monitor. Here is a picture of both. http://s1176.photobucket.com/albums/x327/ionosphere2011/ mailto:centos@centos.org Why does System Monitor show 1.7gb free out of 8gb. While Top shows all 8gb being used? If 1.7gb is free then it should not be using swap space so I assume System Monitor is reporting it incorrectly? Take a look at the output from the 'free' command. In the first line of memory usage numbers, buffer memory and cache memory is included in the used category. For the numbers in the +/- buffers/cache line, buffer and cache memory is considered free since it can easily be used to satisfy memory requests. The 'top' command shows just that first set of numbers. System Monitor shows the more meaningful number from the second line. Linux kernel uses available memory for caching. If needed, it will use 100% of free memory for caching. Cached data is stored for faster retrieval of applications, but can in any time be disposed of in favor of memory for applications. Different apps will report memory usage differently because different people perceive definition of free memory in different ways. If you place System Monitor on the panel you will see two colors, dark is memory used for/by applications, and above it will be light color (green is default) that represents cached data. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot: Unable to download the kickstart file
Ole Holm Nielsen wrote: Patrick Lists wrote: I fail to see how your repository problem is related to my Kickstart PXE/NFS problem. We can install CentOS 6 (no Kickstart) without problems using PXE. It's the NFS-mounting of the Kickstart-file which fails. What I'd love to learn is how others have made NFS/Kickstart work... Is CentOS 6 assuming NFSv4 by default perhaps? According to the RHEL 6.0 Release Notes it is: Mounting a file system via NFS now defaults to NFSv4. Yes, this sounds like the correct explanation! Our RHEL5.6 PXE/TFTP/NFS server is certainly configured for NFSv3. I haven't explored the NFSv4 approach though. How can we tweak the CentOS6 Kickstart installation to explicitly request an NFSv3 service in the PXE config file: kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg To rephrase my question: Where do we find documentation for the vmlinuz append flags shown above, in particular documentation of the ks=... flags? Hopefully there'll be some way to force an NFSv3 mount in stead of the default NFSv4? Or perhaps we need to use http: and stop using nfs: with CentOS6? I would suggest using NFSv4 on all of your servers. It needs only one port open on the firewall, tcp 2049 and I think it is better solution security wise (if I remember correctly). I started to use NFSv4 from the start on the CentOS 5.x and never had any problems. Why not upgrade when opportunity presented it self. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] MySQL ERROR - UNKNOWN_MYSQL_USER
This is strange behavior because as soon as I start mysqld with a clean error log, I get the following messages: 110720 21:38:47 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.5.14-log' socket: '/var/lib/mysql/mysql.sock' port: 2500 MySQL Community Server (GPL) by Remi 110720 21:38:48 [Warning] Access denied for user 'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO) The strange things is, AFAIK there are no clients trying to connect to mysql. I shutdown a mysql CLI monitor I had running, and did the restart again. So I'm just wondering why I get this message, when AFAIK there is nothing that should be trying to connect to mysql - unless it's a server daemon running somewhere? Has anyone else come across this funny error message? Kind Regards, Keith Roberts - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 2 questions on CentOS firewall
Timothy Murphy wrote: Timothy Murphy wrote: So I assume the modem is rejecting the ICMP packets. As I said, I don't see anything about this in the modem documentation or on the modem web-site. I suppose another possibility is that some site along the way rejects ICMP packets? traceroute seems to timeout in Milan: --- [root@helen tim]# traceroute anghiari.homelinux.com traceroute to anghiari.homelinux.com (79.46.6.203), 30 hops max, 40 byte packets 1 netopia (192.168.1.254) 0.951 ms 1.132 ms 1.389 ms 2 isp (159.134.155.19) 37.238 ms 39.560 ms 42.027 ms ... 12 telecomitalia.par02.atlas.cogentco.com (130.117.14.82) 67.140 ms telecomitalia.par02.atlas.cogentco.com (130.117.15.138) 92.952 ms ibs- resid.milano50.mil.seabone.net (93.186.128.246) 87.098 ms 13 * * * ... 30 * * * --- tcptraceroute gets to the modem, but after some timeouts: --- [root@helen tim]# tcptraceroute anghiari.homelinux.com traceroute to anghiari.homelinux.com (79.46.6.203), 30 hops max, 40 byte packets 1 netopia (192.168.1.254) 1.491 ms 1.534 ms 1.784 ms 2 isp (159.134.155.19) 36.195 ms 38.794 ms 41.328 ms ... 12 ibs-resid.milano50.mil.seabone.net (93.186.128.246) 85.084 ms 84.599 ms 86.881 ms 13 * * * 14 * * * 15 * * * 16 * * * 17 * * * 18 host203-6-dynamic.46-79-r.retail.telecomitalia.it (79.46.6.203) 115.381 ms 107.416 ms 114.875 ms --- If anyone can interpret these for me, I shall be grateful. Those timeouts are normal occurrence. Some/most heavily loaded routers are configured to ignore traceroute requests, possibly even ICMP except for certain whitelisted IP's but cant remember of the top of my head. Blocking ICMP's for customer IP's is not something ISP's do, for various reasons. I take a look at Billion manual. It seams that you have to use it's firewall to add an allow rule for protocol icmp? and source IP 0.0.0.0. Destination might be also 0.0.0.0, haven't had the time to study it. This should allow pings from outside. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL ERROR - UNKNOWN_MYSQL_USER
Keith Roberts wrote: This is strange behavior because as soon as I start mysqld with a clean error log, I get the following messages: 110720 21:38:47 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.5.14-log' socket: '/var/lib/mysql/mysql.sock' port: 2500 MySQL Community Server (GPL) by Remi 110720 21:38:48 [Warning] Access denied for user 'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO) The strange things is, AFAIK there are no clients trying to connect to mysql. I shutdown a mysql CLI monitor I had running, and did the restart again. So I'm just wondering why I get this message, when AFAIK there is nothing that should be trying to connect to mysql - unless it's a server daemon running somewhere? Has anyone else come across this funny error message? There must be some service that does uses MySQL but does not have user set. Website like CMS? Try getting more logs to see what app/script uses it. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL ERROR - UNKNOWN_MYSQL_USER
On Wed, 20 Jul 2011, Ljubomir Ljubojevic wrote: To: CentOS mailing list centos@centos.org From: Ljubomir Ljubojevic off...@plnet.rs Subject: Re: [CentOS] MySQL ERROR - UNKNOWN_MYSQL_USER Keith Roberts wrote: This is strange behavior because as soon as I start mysqld with a clean error log, I get the following messages: 110720 21:38:47 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.5.14-log' socket: '/var/lib/mysql/mysql.sock' port: 2500 MySQL Community Server (GPL) by Remi 110720 21:38:48 [Warning] Access denied for user 'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO) The strange things is, AFAIK there are no clients trying to connect to mysql. I shutdown a mysql CLI monitor I had running, and did the restart again. So I'm just wondering why I get this message, when AFAIK there is nothing that should be trying to connect to mysql - unless it's a server daemon running somewhere? Has anyone else come across this funny error message? There must be some service that does uses MySQL but does not have user set. Website like CMS? Try getting more logs to see what app/script uses it. Hi Ljubomir. It might be collectd that can use mysql. The man page is over 5,000 pages for the config file. I seem to remember seeing a message at boot time about collectd not being configured properly to use mysql. I installed collectd recently, so I could monitor my HDD temperatures using GKrellM, which it's doing OK. I'll leave this for another day! Kind Regards, Keith - Websites: http://www.karsites.net http://www.php-debuggers.net http://www.raised-from-the-dead.org.uk All email addresses are challenge-response protected with TMDA [http://tmda.net] - ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] MySQL ERROR - UNKNOWN_MYSQL_USER
Keith Roberts wrote: On Wed, 20 Jul 2011, Ljubomir Ljubojevic wrote: To: CentOS mailing list centos@centos.org From: Ljubomir Ljubojevic off...@plnet.rs Subject: Re: [CentOS] MySQL ERROR - UNKNOWN_MYSQL_USER Keith Roberts wrote: This is strange behavior because as soon as I start mysqld with a clean error log, I get the following messages: 110720 21:38:47 [Note] /usr/libexec/mysqld: ready for connections. Version: '5.5.14-log' socket: '/var/lib/mysql/mysql.sock' port: 2500 MySQL Community Server (GPL) by Remi 110720 21:38:48 [Warning] Access denied for user 'UNKNOWN_MYSQL_USER'@'localhost' (using password: NO) The strange things is, AFAIK there are no clients trying to connect to mysql. I shutdown a mysql CLI monitor I had running, and did the restart again. So I'm just wondering why I get this message, when AFAIK there is nothing that should be trying to connect to mysql - unless it's a server daemon running somewhere? Has anyone else come across this funny error message? There must be some service that does uses MySQL but does not have user set. Website like CMS? Try getting more logs to see what app/script uses it. Hi Ljubomir. It might be collectd that can use mysql. The man page is over 5,000 pages for the config file. I seem to remember seeing a message at boot time about collectd not being configured properly to use mysql. I installed collectd recently, so I could monitor my HDD temperatures using GKrellM, which it's doing OK. Then all you need to do is service collectd stop; service mysqld start and check the logs. -- Ljubomir Ljubojevic (Love is in the Air) PL Computers Serbia, Europe Google is the Mother, Google is the Father, and traceroute is your trusty Spiderman... StarOS, Mikrotik and CentOS/RHEL/Linux consultant ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Variable assigned to grep output - missing letter n!
--On Wednesday, July 20, 2011 02:53:06 PM -0500 Sean Carolan
scaro...@gmail.com wrote:
Now the next
question would be, how can I include the \n characters in my variable
string, without fudging with $IFS?
Can you describe, functionally and a bit higher level, what you're
trying to achieve? Is myvar supposed to contain the entire file
content if the file contains lorem, or just any lines containing
lorem complete with newline, or are you expecting some other form
of delimiter, or what? Also of interest is what you're going to do
with myvar after the fact (write it out, do a replacement, whatever).
For example, if you're trying to do some form of processing that
only considers lines containing lorem, other tools might give
a cleaner, faster, and more maintainable result:
#! /usr/bin/perl
use taint;
use strict;
while () {
if (m,lorem,) {
# do something with $_
}
}
(No, I don't advocate perl for everything, but knowing more about the
problem can
help in determining a suitable solution.)
Devin
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Re: [CentOS] Memory Usage in Top and System Monitor
Thanks for the replies. I checked free and that makes sense to me now. The only thing I cannot figure out is, if there is all this memory available why would swap space start building? I started checking all this out because the system slowed to a crawl after I noticed swap space being used which does not make sense to me if there is available memory. total used free sharedbuffers cached Mem: 83014487917100 384348 0 599846009248 -/+ buffers/cache:18478686453580 Swap: 412876012258962902864 btw - this is Centos 5.6 box using the PAE kernel. 2.6.18-238.12.1.el5PAE ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Variable assigned to grep output - missing letter n!
(No, I don't advocate perl for everything, but knowing more about the problem can help in determining a suitable solution.) You're right, I gave up and used python instead. The basic idea here was to gather together a long list of hostnames by grepping through a few hundred files, check the list for duplicates, and alert someone if duplicates were found. I had a nifty one-liner using grep, sort, and uniq -c that basically spat out a list of hosts with duplicate entries, but in the end it was easier to manipulate the data (at least for me) using python. thanks Sean ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot: Unable to download the kickstart file
On 07/20/2011 09:49 PM, Ole Holm Nielsen wrote: Mounting a file system via NFS now defaults to NFSv4. Yes, this sounds like the correct explanation! Our RHEL5.6 PXE/TFTP/NFS server is certainly configured for NFSv3. I haven't explored the NFSv4 approach though. How can we tweak the CentOS6 Kickstart installation to explicitly request an NFSv3 service in the PXE config file: If there is such an option then I could not find it. Maybe someone else knows how to force NFSv3. kernel CentOS-6-i386/vmlinuz append load_ramdisk=1 initrd=CentOS-6-i386/initrd.img network ks=nfs:130.226.86.4:/u/rpm/kickstart/ks-centos-6-clean-i386.cfg To rephrase my question: Where do we find documentation for the vmlinuz append flags shown above, in particular documentation of the ks=... flags? Try the Installation Guide: https://access.redhat.com/knowledge/docs/ Hopefully there'll be some way to force an NFSv3 mount in stead of the default NFSv4?Or perhaps we need to use http: and stop using nfs: with CentOS6? I have used NFS (v3 v4) and HTTP and for me HTTP was faster so I continued to use HTTP. Regards, Patrick ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory Usage in Top and System Monitor
On 07/20/2011 05:27 PM, Michael McNulty wrote: Thanks for the replies. I checked free and that makes sense to me now. The only thing I cannot figure out is, if there is all this memory available why would swap space start building? I started checking all this out because the system slowed to a crawl after I noticed swap space being used which does not make sense to me if there is available memory. total used free shared buffers cached Mem: 8301448 7917100 384348 0 59984 6009248 -/+ buffers/cache: 1847868 6453580 Swap: 4128760 1225896 2902864 btw - this is Centos 5.6 box using the PAE kernel. 2.6.18-238.12.1.el5PAE That indicates that at one time there were processes using a lot of memory, and 1.2GB got swapped out to satisfy that. Until something tries to access those pages they will just sit there in swap. Whatever process needs those pages will be a bit slow the next time it wakes up, but since you've got plento of available memory now those pages should then remain in physical memory. The system should not continue to run slow. If you like, you can force everything to be paged back in by running (as root) swapoff -av, followed by swapon -av to re-activate your swap space. -- Bob Nichols NOSPAM is really part of my email address. Do NOT delete it. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Memory Usage in Top and System Monitor
I think I found my problem. I did not realize using /dev/shm as a ramdisk will create swap space. Is there a way to prevent the ramdisk from swapping to disk? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 6 PXE boot:Unable to download the kickstart file
On 07/20/2011 05:15 PM, Ole Holm Nielsen wrote: What I'd love to learn is how others have made NFS/Kickstart work... I download the kickstart file via http: append initrd=initrd_c60_x86_64.img ks=http://172.20.0.1/linux/c6_x86_64.ks nofb Works for CentOS 5 and 6. Mogens -- Mogens Kjaer, m...@lemo.dk http://www.lemo.dk ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
