[CentOS-es] Encuesta
Estimados amig@s de la comunidad, comentarles que estoy realizardo una pequena investigacion, rruego muy encarecidamente se me colabore. Esperando no se tan inoportuna, les agradesco la ayuda que me brindan. Cuestionario Estas preguntas es para determinar el efecto que esta causando el software libre en el desarrollo económico del software privativo, por favor responda lo mas claro posible. Pais : Edad : Sexo : 1. Que tipo de plataforma utiliza para la administración de datos y/o comunicación en su empresa? a) Software libre b) Software privado c) Mac OS R. 2. Que tipo de plataforma utiliza para los usuario finales? a) Software libre b) Software privado c) Mac OS R. 3. Que distribución de Software libre es la que utiliza? a) Debian b) Red Hat c) fedora d) no utilizo Soft. Libre R. 4. Por que utiliza dicha distribución? (En el caso de no utilizar soft. Libre por favor deje en blanco esta pregunta). R. 5. Cuales son los beneficios que le brinda la plataforma que utiliza? R. 6. Cuales son las falencias que experimento con la plataforma que utiliza? R. 7. En el caso de haber implementado alguna distribución de software libre, como fue la aceptación de los usuarios ante este cambio? a) Se adaptaron con gran facilidad b) se adaptaron fácilmente c) Ni rechazaron, ni aceptaron d) Difícil pero se acostumbraron e) rechazaron totalmente R. 8. En el caso de haber migrado a software libre para la administración de datos, comunicación, etc., y/o usuarios finales, cuales fueron las causas? R. Muchisimas Gracias. ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS-es] Encuesta
El 1 de mayo de 2013 06:01, Lourdes Intipampa lintipa...@megalink.comescribió: Estimados amig@s de la comunidad, comentarles que estoy realizardo una pequena investigacion, rruego muy encarecidamente se me colabore. Esperando no se tan inoportuna, les agradesco la ayuda que me brindan. Cuestionario Estas preguntas es para determinar el efecto que esta causando el software libre en el desarrollo económico del software privativo, por favor responda lo mas claro posible. Pais : ColombiaEdad : 43 Sexo : Masculino 1. Que tipo de plataforma utiliza para la administración de datos y/o comunicación en su empresa? a) Software libre b) Software privado c) Mac OS R. a y b 2. Que tipo de plataforma utiliza para los usuario finales? a) Software libre b) Software privado c) Mac OS R. b 3. Que distribución de Software libre es la que utiliza? a) Debian b) Red Hat c) fedora d) no utilizo Soft. Libre R. b 4. Por que utiliza dicha distribución? (En el caso de no utilizar soft. Libre por favor deje en blanco esta pregunta). R. Estabilidad y soporte 5. Cuales son los beneficios que le brinda la plataforma que utiliza? R. Flexibilidad, robustez, confiabilidad. 6. Cuales son las falencias que experimento con la plataforma que utiliza? R. En realidad no hay falencias, lo que existe es desconocimiento del potencial del software Libre. 7. En el caso de haber implementado alguna distribución de software libre, como fue la aceptación de los usuarios ante este cambio? a) Se adaptaron con gran facilidad b) se adaptaron fácilmente c) Ni rechazaron, ni aceptaron d) Difícil pero se acostumbraron e) rechazaron totalmente R. a y b. 8. En el caso de haber migrado a software libre para la administración de datos, comunicación, etc., y/o usuarios finales, cuales fueron las causas? R. Muchisimas Gracias. ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es -- Carlos R!. ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS-es] Encuesta
Un consejo, use Formularios de Google Docs por favor... Es muy complicado para usted organizar los datos y para mi responder sus preguntas. Gracias! El 1 de mayo de 2013 09:38, Carlos Restrepo restrcar...@gmail.comescribió: El 1 de mayo de 2013 06:01, Lourdes Intipampa lintipa...@megalink.com escribió: Estimados amig@s de la comunidad, comentarles que estoy realizardo una pequena investigacion, rruego muy encarecidamente se me colabore. Esperando no se tan inoportuna, les agradesco la ayuda que me brindan. Cuestionario Estas preguntas es para determinar el efecto que esta causando el software libre en el desarrollo económico del software privativo, por favor responda lo mas claro posible. Pais : ColombiaEdad : 43 Sexo : Masculino 1. Que tipo de plataforma utiliza para la administración de datos y/o comunicación en su empresa? a) Software libre b) Software privado c) Mac OS R. a y b 2. Que tipo de plataforma utiliza para los usuario finales? a) Software libre b) Software privado c) Mac OS R. b 3. Que distribución de Software libre es la que utiliza? a) Debian b) Red Hat c) fedora d) no utilizo Soft. Libre R. b 4. Por que utiliza dicha distribución? (En el caso de no utilizar soft. Libre por favor deje en blanco esta pregunta). R. Estabilidad y soporte 5. Cuales son los beneficios que le brinda la plataforma que utiliza? R. Flexibilidad, robustez, confiabilidad. 6. Cuales son las falencias que experimento con la plataforma que utiliza? R. En realidad no hay falencias, lo que existe es desconocimiento del potencial del software Libre. 7. En el caso de haber implementado alguna distribución de software libre, como fue la aceptación de los usuarios ante este cambio? a) Se adaptaron con gran facilidad b) se adaptaron fácilmente c) Ni rechazaron, ni aceptaron d) Difícil pero se acostumbraron e) rechazaron totalmente R. a y b. 8. En el caso de haber migrado a software libre para la administración de datos, comunicación, etc., y/o usuarios finales, cuales fueron las causas? R. Muchisimas Gracias. ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es -- Carlos R!. ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es -- PALOMINO PÉREZ, Nick Bryan. www.nbpalomino.tk ___ CentOS-es mailing list CentOS-es@centos.org http://lists.centos.org/mailman/listinfo/centos-es
Re: [CentOS] flashing a BIOS on an HP server
On 04/30/2013 09:34 PM, m.r...@5-cent.us wrote: Yeah, assuming you're running Windows Do you have access to any Windows machine? Then you can run the SP53272.exe file on that, it will give you the possibility to burn a bootable CD with the firmware code. If you don't have a CD burner on the Windows machine you can transfer the .iso file from the directory that was created when the SP53272.exe is unpacked, it will be in ROMPaq CD/ROMPAQ.iso. You don't need Windows on the dl580. Mogens -- Mogens Kjaer, m...@lemo.dk http://www.lemo.dk ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] flashing a BIOS on an HP server
On 05/01/13 02:17, Mogens Kjaer wrote: On 04/30/2013 09:34 PM, m.r...@5-cent.us wrote: Yeah, assuming you're running Windows Do you have access to any Windows machine? Then you can run the SP53272.exe file on that, it will give you the possibility to burn a bootable CD with the firmware code. If you don't have a CD burner on the Windows machine you can transfer the .iso file from the directory that was created when the SP53272.exe is unpacked, it will be in ROMPaq CD/ROMPAQ.iso. You don't need Windows on the dl580. Really? Thanks - if my unetbootin/freedos USB doesn't work, that sounds like my next shot. mark -- Hey, we won! What a surprise! The most powerful country in the history of the world beat a battered, half-destroyed Third World nation! The NFL linebacker *creamed* that 4th grade bully! It's party time! ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-announce Digest, Vol 99, Issue 1
Send CentOS-announce mailing list submissions to centos-annou...@centos.org To subscribe or unsubscribe via the World Wide Web, visit http://lists.centos.org/mailman/listinfo/centos-announce or, via email, send a message with subject or body 'help' to centos-announce-requ...@centos.org You can reach the person managing the list at centos-announce-ow...@centos.org When replying, please edit your Subject line so it is more specific than Re: Contents of CentOS-announce digest... Today's Topics: 1. CEBA-2013:0781 CentOS 6 perl Update (Johnny Hughes) -- Message: 1 Date: Tue, 30 Apr 2013 14:33:07 + From: Johnny Hughes joh...@centos.org Subject: [CentOS-announce] CEBA-2013:0781 CentOS 6 perl Update To: centos-annou...@centos.org Message-ID: 20130430143307.ga7...@chakra.karan.org Content-Type: text/plain; charset=us-ascii CentOS Errata and Bugfix Advisory 2013:0781 Upstream details at : https://rhn.redhat.com/errata/RHBA-2013-0781.html The following updated files have been uploaded and are currently syncing to the mirrors: ( sha256sum Filename ) i386: f0a50f66e46cc73eea3a5565e5e5e892e088792de2a1f8165163492d7be63602 perl-5.10.1-131.el6_4.i686.rpm 4144c9010ede176aefa5e29bee72645fd77a250fb96879803a84331960f0b56b perl-Archive-Extract-0.38-131.el6_4.i686.rpm 2299f96a517221d892e0bba4d6fd36c6b5becdbc451f1b124aeef82f98c3626e perl-Archive-Tar-1.58-131.el6_4.i686.rpm d5b508375bec0e77299bb7047aee66c667aef9746e2de203ec482b77d1e1bdf5 perl-CGI-3.51-131.el6_4.i686.rpm 023f24c5b51a74c79c56ee5d18f2bdc09ef5f21cd734a3b34f6feb34f50ef9f9 perl-Compress-Raw-Bzip2-2.020-131.el6_4.i686.rpm 66c3a56e1e2e25911f50e8e4780a2ee6e3a432012beb1044604e41678bae793e perl-Compress-Raw-Zlib-2.020-131.el6_4.i686.rpm 102b14b8196c5852c8d5c8ca731f65fe76c5712764841601cf1a85e7f05cc2a4 perl-Compress-Zlib-2.020-131.el6_4.i686.rpm 66e5aba9c5ace6261f18016c6e2a6bc85e18324c5063224be3362e684889e9eb perl-core-5.10.1-131.el6_4.i686.rpm 07bd483b690228b7bd29434ef77dc57b2b072c3b62f1ba3ae7bc28f0a2df53ed perl-CPAN-1.9402-131.el6_4.i686.rpm 9f65a42c201b3d7e93b22cd90773daefcf3175bbb79c3c1edbe115a9c3cda65b perl-CPANPLUS-0.88-131.el6_4.i686.rpm e2bbfa8d71d89e843d7f9ce238e7374e8fe3959692acfce0398ae5926505a9de perl-devel-5.10.1-131.el6_4.i686.rpm 9561f015f62e62975eab011ea1d2d8befbb482a3bc0fa22e27dd30f21d894480 perl-Digest-SHA-5.47-131.el6_4.i686.rpm bfa2886bd96e8d18a98f5cf4d408e01b64f68b90e44d9a4ae0e410612d6cbbb5 perl-ExtUtils-CBuilder-0.27-131.el6_4.i686.rpm eedd337178adac22cfbf66579a546eb18429983683121f1ff6439d274f4fecd7 perl-ExtUtils-Embed-1.28-131.el6_4.i686.rpm 8aafb9b42266b081052c78aa8229a720326e3116893ec4c1a1248be51f32 perl-ExtUtils-MakeMaker-6.55-131.el6_4.i686.rpm e747f84611e5063096d8dde995aecdefc3966441d45c2477655a6bec3cf80a60 perl-ExtUtils-ParseXS-2.2003.0-131.el6_4.i686.rpm 93841ed7f9a12647b1a477a449f6be278ccc80805fd361e97145cf89b2f26b26 perl-File-Fetch-0.26-131.el6_4.i686.rpm 24ddfac33694aa3d58e3e6a7b6e4aa28c19187c070a3613527da19c9aad56a8b perl-IO-Compress-Base-2.020-131.el6_4.i686.rpm 63e7f3ed4fb918c19c959586e50b677d86207bee3c51709969bdb66c2ae99dad perl-IO-Compress-Bzip2-2.020-131.el6_4.i686.rpm 2a471c656cc9fed06e0fbfc3bf8494948f81a111c90a0116cfa4bd2469df93cd perl-IO-Compress-Zlib-2.020-131.el6_4.i686.rpm 1664652e566917cdefb551c55fa0a6c66e9d58b5d20d3c94a7414b557e4745e1 perl-IO-Zlib-1.09-131.el6_4.i686.rpm a769da23d72cf3050df10bd85adcc06123a5d19d4552d23903f4bdf37d0d21b9 perl-IPC-Cmd-0.56-131.el6_4.i686.rpm 45d19f80b9078bd78dbd9306a77213cf917b5e51024c0b6549d78d1efc699e1e perl-libs-5.10.1-131.el6_4.i686.rpm 3b49409fd73c9baac1349d8b5f0dc48b0e2ad4de2704e590a3e9fa178ad6a5ec perl-Locale-Maketext-Simple-0.18-131.el6_4.i686.rpm 249ecdc9fd1e0a22aa6520f6e8ed946578ec93c5638dcf69aa686d2ba4cefb8f perl-Log-Message-0.02-131.el6_4.i686.rpm 3ab5bfc2443670cf22a60c20d674a2e2764399d281ea62c2622bdf8047b78c2d perl-Log-Message-Simple-0.04-131.el6_4.i686.rpm 5a62c0567a5e97c2da4e28edfde4d39a8f90293c782a189d049a3ee49a4f13c8 perl-Module-Build-0.3500-131.el6_4.i686.rpm 1a171e3b8310b7d7e01f6cfecfd757ad9a65e6ce08efc6f980d7c9dfb4d2e786 perl-Module-CoreList-2.18-131.el6_4.i686.rpm e84b680ff75cf24390ec15a91307af9cd8d02d39470351d370bbfa109174b60a perl-Module-Load-0.16-131.el6_4.i686.rpm 9951224e7489542c0b5b9fa8615cd83a98abf88a7b60ce1f9969c0b6ff672e65 perl-Module-Load-Conditional-0.30-131.el6_4.i686.rpm c6cf1d7305985516f66618228fb027820bcc6c3fad0a1b16fb30e3648958d6c1 perl-Module-Loaded-0.02-131.el6_4.i686.rpm 48fd44a4401167417a22f79994fa86198e7bbe31117f60768d17bf477fbe6dc0 perl-Module-Pluggable-3.90-131.el6_4.i686.rpm 726879ee1f179839ab77b9385f901bc6707a81ccc2ddcdb260999bfd70eb1b11 perl-Object-Accessor-0.34-131.el6_4.i686.rpm 997bc7ed17b88be5285887fd3009a8cd42ca92e5c9032fc8effc02ebaa0d1132 perl-Package-Constants-0.02-131.el6_4.i686.rpm f09c4a85272ea98b20b4fc95021b211f5c3233f47ba477c71b6276f817bf80c8
Re: [CentOS] flashing a BIOS on an HP server
On Wed, May 1, 2013 at 2:17 AM, Mogens Kjaer m...@lemo.dk wrote: On 04/30/2013 09:34 PM, m.r...@5-cent.us wrote: Yeah, assuming you're running Windows Do you have access to any Windows machine? Only for making the floppy or other image. Then you can run the SP53272.exe file on that, it will give you the possibility to burn a bootable CD with the firmware code. For kicks, I downloaded a BIOS update for an old(er) HP system I own... While you run the software on Windows, it is a FreeDOS bootable floppy image. Now that I've got a bootable floppy, I clone it with dd to an image file and I could PXE boot it. I'm not quite sure why HP didn't just make a floppy image and distribute that back then. I keep a USB floppy drive and one Windows system (dual boot laptop) around just in case for situations like this. If you don't have a CD burner on the Windows machine you can transfer the .iso file from the directory that was created when the SP53272.exe is unpacked, it will be in ROMPaq CD/ROMPAQ.iso. You don't need Windows on the dl580. Mogens -- Mogens Kjaer, m...@lemo.dk http://www.lemo.dk ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos -- ---~~.~~--- Mike // SilverTip257 // ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] flashing a BIOS on an HP server
had to do this last week on a dell something or other after way too much failed trial-and-error, here is what i did: $ bunzip2 Downloads/FreeDOS-1.1-USB-Boot.img.bz2 $ sudo dd if=Downloads/FreeDOS-1.1-USB-Boot.img of=/dev/sdb * unplug/plug * $ cp Downloads/O380-A07.exe /media/FREEDOS1~1A/ * reboot * steven tardy ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Is there a good nntp client for Centos 6 that handles SSL native?
Is there a good nntp client for Centos 6 that handles SSL native? It was difficult, to say the least, on Centos anyway, to get Pan to post to Mixmin servers, which require SSL (so we have to use Stunnel to add SSL capabilities to Pan) on Centos. Had Pan native SSL support, this wouldn't have been a problem. Hence the question: Q: Is there a good freeware NNTP client with a Centos repository that handles SSL native? Note: Here's the abbreviated sequence to install Stunnel with Pan (but it took me months to come up with this as all the tutorials on the web fail in the little Centos details). Install Stunnel: $ sudo yum install stunnel -y Read bug reports to find a stunnel init script for Centos: https://bugzilla.redhat.com/show_bug.cgi?id=455815 Add modify that stunnel /etc/init.d/stunnel script: http://bugzilla.redhat.com/attachment.cgi?id=325164 Configure the Stunnel /etc/stunnel/stunnel.conf file: ;setuid = nobody ;setgid = nobody client = yes [nntp] accept = localhost:2119 connect = news.mixmin.net:563 NOTE: It took me months to figure out that these two now-commented lines cause stunnel to fail on my Centos box: Test Stunnel: $ telnet localhost 2119 Trying ::1... telnet: connect to address ::1: Connection refused Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. 200 news.mixmin.net InterNetNews NNRP server INN 2.6.0 (20120622 prerelease) ready (posting ok) post 340 Ok, recommended message-ID kuyt4l$e21$1...@news.mixmin.net From: foobar f...@bar.com Newsgroups: alt.test Subject: This is a test This is a test of stunnel to mixmin. . 240 Article received kuyt4l$e21$1...@news.mixmin.net quit 205 Bye! Connection closed by foreign host. Install Pan: $ sudo yum --enablerepo rpmforge install pan -y Configure any known good Pan newsserver: [Pan]Edit-Edit News Servers-Add-(see below)-OK Address: aioe.org Port: 119 Configure a test Pan posting profile: [Pan]Edit-Edit Posting Profiles-Add- Profile Name: New Profile Full Name: Foo Bar Email Address: f...@bar.com Post Articles Via: aioe.org OK Test Pan setup by reading sending a message to alt.test. [Pan]Post-Post to Newsgroup-alt.test Now you're ready to configure Pan for SSL via Stunnel: [Pan]Edit-Edit News Servers-Add-(see below)-OK Address: localhost Port: 2119 Switch the test user to this encrypted server: [Pan]Edit-Edit Posting Profiles-Edit- Post Articles Via: localhost OK Test this setup by reading sending a message to alt.test. [Pan]Post-Post to Newsgroup-alt.test Note: It would have been easier had Pan native SSL capability; hence the question: Q: What nntp client handles SSL native on Centos 6? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS Dojo at Phoenix, AZ on the 10th May 2013
On 04/30/2013 10:59 AM, Karanbir Singh wrote: The second CentOS user interaction Dojo is taking place at Phoenix, AZ, USA on the 10th May 2013. And once again, we have a great line up of speakers covering a broad spectrum of technologies that people running CentOS usualy care about most. For details on the speakers, the topics and the venue : http://wiki.centos.org/Events/Dojo/Phoenix2013 The final list of speakers and sessions is now online, its going to be a great day! If you can, come along. - KB -- Karanbir Singh +44-207-0999389 | http://www.karan.org/ | twitter.com/kbsingh GnuPG Key : http://www.karan.org/publickey.asc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Configuring source-specific routing
I'm attempting to configure source-specific routing so that my servers can exist on multiple subnets from multiple upstream providers. A rough diagram of the network layout: ISP1 router (blackbox, routes subnet A, address on subnet A) \ ---eth0(firewall)eth1---((servers)) / ISP2 router (blackbox, routes subnet B, address on subnet B) The aim is to allow the servers to use both subnet A and subnet B. To allow this, any machine on both subnets must have source-specific routing configured, else packets originating from one ISP's AS will be directed at the other's router, and neither ISP cares for that. At the moment, I'm focusing on getting the second ISP properly added to the firewall box. The firewall box is using CentOS 6.4, and normally passes traffic back and forth via proxy_arp. None of my interfaces are NM_CONTROLLED, and NetworkManager is not installed, much less started. I've created a route-eth0:1 file that looks roughly like this: 10.0.0.1 dev eth0:1 \ src 10.0.0.2 \ from 10.0.0.0/29 default via 10.0.0.1 dev eth0:1 \ src 10.0.0.2 \ from 10.0.0.0/29 (Treat indented lines as continuations of the previous line) (No, the ISPs aren't giving me RFC1918 addresses; these are redacted.) If I run ifup eth0:1, ip route show includes the lines: 10.0.0.1 dev eth0 scope link src 10.0.0.2 10.0.0.0/29 dev eth0 proto kernel scope link src 10.0.0.2 default via 10.0.0.1 dev eth0 Note that the from 10.0.0.0/29 clause is missing. With the addition of a second default route on my firewall/gateway without any restriction on which traffic should go that way, my whole network, of course, tanks. I'm surprised it's been such a pain; I would have expected it to be a relatively common configuration. What's the proper way of doing source-specific routing on CentOS? signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Configuring source-specific routing
On Wed, 2013-05-01 at 16:05 -0400, Michael Mol wrote:
I'm attempting to configure source-specific routing so that my servers
can exist on multiple subnets from multiple upstream providers.
Kinda curious why you are attempting this without getting involved in
dynamic routing (BGP)... It's usually someone trying to do multihoming
or multi-link load balancing on the cheap without involving their ISPs
(which tends to be expensive as soon as you're talking with them about
redundant / backup loops, provider independent addresses, and BGP
peering). Generally equates to champagne taste on a beer budget but
there are exceptions and reasons, as I know from personal experience.
It often doesn't end well and is unreliable as network conditions
change. But that depends on your requirements and application. I'm not
one to judge - just pointing out the pitfalls.
I have done this a number of times in the past (mostly for VPN's and
redundant load-balancing links). You're probably going to have get real
down and dirty into policy routing rules and tables with iproute2. I
don't honestly believe you will be able to pull it off with the basic
stuff provided in the ifcfg-*, route-*, or static-route files (proviso
below).
I had to do it using completely custom files utilizing ip rule and ip
route {add|delete} table [n] subcommands to ip to build custom
matching rules and mapping them to different routing tables containing
different routes and priorities. In some cases, with OpenVPN VPNs, I
also had to incorporate iptables filtering commands to mark and match
packets and interact with the ip rule tables but I doubt you're going
that deep.
man ip-rule
--
In some circumstances we want to route packets differently depending
not only on destination addresses, but also on other packet fields:
source address, IP protocol, transport protocol ports or even packet
payload. This task is called 'policy routing'.
To solve this task, the conventional destination based routing table,
ordered according to the longest match rule, is replaced with a 'rout‐
ing policy database' (or RPDB), which selects routes by executing some
set of rules.
--
This is way beyond what the network-scripts were designed for and WAY
WAY beyond NetworkMangler's capabilities. It can be done but it's
difficult to get right and very dependent on your exact peculiar
configuration. It can be real twitchy to make work right and real
difficult to debug when it's not working right. It's also prone to
asymmetrical / triangular routes that can break things if you don't get
it right. It also will not behave robustly if one link or another goes
down (no automatic failover).
It's beyond my ability to tell you generically how to make it work (I
can't even find those old config files I use to use for multiple ISDN
links years ago). The devil is in the (your) details and here there be
dragons.
It will end up looking something like this (and these addresses are in
my real address blocks...):
ip addr add 130.205.16.16/24 dev eth0
ip addr add 130.205.17.16/24 dev eth0
ip route add table 16 default via 130.205.16.1
ip route add table 17 default via 130.205.17.1
ip rule add from 130.205.16.0/24 table 16
ip rule add from 130.205.17.0/24 table 17
Those are just from memory and may not be perfectly accurate. I haven't
needed to do any of this in years. It's just possible that the above
commands could be incorporated into the route-* files. Last time I
tried this was before iproute2 was fully integrated and I could only use
the static-routes file, which used the route command and would NOT
work. Since the route-* files use the ip (iproute2) command, you should
be able to integrate the appropriate rule and route add commands into
those files, but I've not done it that way so I can't really vouch for
it.
You can then see your match rules with this command:
[root@canyon ~]# ip rule ls
0: from all lookup local
32764: from 130.205.17.0/24 lookup 17
32765: from 130.205.16.0/24 lookup 16
32766: from all lookup main
32767: from all lookup default
And your route tables (including my default) like this:
[root@complex ~]# ip route ls table 16
default via 130.205.16.1 dev eth0
[root@complex ~]# ip route ls table 17
default via 130.205.17.1 dev eth0
[root@complex ~]# ip route ls
default via 99.104.36.1 dev eth2
99.104.36.0/22 dev eth2 proto kernel scope link src 99.104.38.187
130.205.16.0/24 dev eth0 proto kernel scope link src 130.205.16.16
130.205.17.0/24 dev eth0 proto kernel scope link src 130.205.17.16
130.205.38.0/24 dev br0 proto kernel scope link src 130.205.38.1
169.254.0.0/16 dev eth2 scope link metric 1003
169.254.0.0/16 dev br0 scope link metric 1007
There MAY be other ways of doing it but this was what use to work for
me, when I needed it many ages ago.
Regards,
Mike
A rough diagram of the network layout:
ISP1 router (blackbox, routes subnet A, address on
Re: [CentOS] Configuring source-specific routing
On 05/01/2013 05:15 PM, Michael H. Warfield wrote:
On Wed, 2013-05-01 at 16:05 -0400, Michael Mol wrote:
I'm attempting to configure source-specific routing so that my servers
can exist on multiple subnets from multiple upstream providers.
Kinda curious why you are attempting this without getting involved in
dynamic routing (BGP)... It's usually someone trying to do multihoming
or multi-link load balancing on the cheap without involving their ISPs
(which tends to be expensive as soon as you're talking with them about
redundant / backup loops, provider independent addresses, and BGP
peering). Generally equates to champagne taste on a beer budget but
there are exceptions and reasons, as I know from personal experience.
It often doesn't end well and is unreliable as network conditions
change. But that depends on your requirements and application. I'm not
one to judge - just pointing out the pitfalls.
Yup, I know.
Intent is to maintain the old, slow (but has an SLA) connection as a
fallback, and migrate services to the new connection piecemeal.
Meanwhile, the same DNS server on the new connection can be, e.g. ns3.
The same mailserver can have a new MX on the new connection...likely
prioritized to it.
Inbound services can be load-balanced fairly easily via DNS, if TTLs are
kept low, and records updated in response to link state. It's not
anycast DNS, but it also doesn't require to you get BGP peering and PI
space. (I don't even know if I could *get* IPv4 PI space at this point.
I certainly know I wouldn't be able to if I waited a year...)
I have done this a number of times in the past (mostly for VPN's and
redundant load-balancing links). You're probably going to have get real
down and dirty into policy routing rules and tables with iproute2. I
don't honestly believe you will be able to pull it off with the basic
stuff provided in the ifcfg-*, route-*, or static-route files (proviso
below).
I had to do it using completely custom files utilizing ip rule and ip
route {add|delete} table [n] subcommands to ip to build custom
matching rules and mapping them to different routing tables containing
different routes and priorities. In some cases, with OpenVPN VPNs, I
also had to incorporate iptables filtering commands to mark and match
packets and interact with the ip rule tables but I doubt you're going
that deep.
Yeah, I've gone that deep. And a tad deeper. I had almost *everything*
working by hand, and went to figure out how to convert it to idomatic
CentOS network configuration scripts. And took my network down *three
times* because of the script-processing stripping things out.
man ip-rule
--
In some circumstances we want to route packets differently depending
not only on destination addresses, but also on other packet fields:
source address, IP protocol, transport protocol ports or even packet
payload. This task is called 'policy routing'.
To solve this task, the conventional destination based routing table,
ordered according to the longest match rule, is replaced with a 'rout‐
ing policy database' (or RPDB), which selects routes by executing some
set of rules.
Yup. I went through LARTC before writing a line of code, just to be sure.
Curiously, at least one guy has reported success:
http://sysadminsjourney.com/content/2009/04/15/doing-simple-source-policy-routing-centos/
Now, the only thing different between his setup and mine (apart from my
using ethN:1 instead of ethN, as all three routers hang off the same
ethernet segment) is that were his guide says:
echo default table CorpNet via 10.0.0.1
/etc/sysconfig/network-scripts/route-eth1
My first pass at making my code platform-idomatic effectively was:
echo default via 10.0.0.1 table CorpNet
/etc/sysconfig/network-scripts/route-eth1
(the table $table clause in mine was at the end of the line, following
the pattern I'd read in LARTC, rather than near the beginning of the line.)
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Re: [CentOS] Is there a good nntp client for Centos 6 that handles SSL native?
On Wed, 01 May 2013 18:20:46 +, Rock wrote: Had Pan native SSL support, this wouldn't have been a problem. I found out elsewhere that the latest Pan handles SSL, but the one in the rpmforge repository doesn't. Every time I try to compile source, it's a disaster, so, for me, Pan doesn't handle SSL. I also found out elsewhere that Thunderbird has native SSL support - but TB treats NNTP as SMTP which makes it difficult, if not unwieldy to use. So, I'm still looking ... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] trying to recover an audio CD...
Fred Smith [hidden email] wrote: Jörg: Sorry I'm so late replying, I missed your reply back when it was new... I'm trying to recover data from an audio cd. it is a recording of a live session, made on a professional cd recorder, on the fly. Do you have any working CD from that drive? If yes, you could call: cdrecord -minfo to get the state and to find out whether it writes in TAO mode. (-minfo is a shortcut for -media-info). Such discs do exist, I just don't happen to have one handy at the moment. I'll see if I can acquire one. apparently, instead of stopping it and fixating the disc, someone turned off the power. oops. I know that wodim will fixate a disk as long as it was otherwise properly terminated (I've done it more than once), but this one it won't fixate. depending on the drive I try it in, I get different messages, but in either case, it remains unfixated. wodim is a defective variant from an extremely outdated cdrecord (taken from a cdrecord from September 2004). - Did you try the original software? Not yet. I just built latest cdrtools but haven't done anything with them yet. - Is it possible to use the original drive that was used for writing? the original isn't a drive per se, it's a professional audio recorder, rack-mounted, that contains a CD drive of some sort. I THINK what happened was the recorder was powered off while writing. Probably made a huge mess of the data, or at least left it in some bad unfinished state. so i've tried reading it with cdparanoia, but it can't do anything with it, or not that I've figured out how to do. cdparanoia is a patch on a cdda2wav version from 1997. There was never an update on the cdda2wav code and development stopped in 2001. Don't expect cdparanoia to be able to read such disks, as the _read_ properties in cdparanoia are generally bad compared to a recent cdda2wav. Note that after the development for cdparanoia stopped around 2000/2001, Heiko Eißfeld and I took the paranoia code (the code in cdparanoia above the read layer that is responsible for retries and result rating) out of cdparanoia, made a portable library from it and added it to cdda2wav. Your problem is that cdparanoia will never read a TOC-less disk and that the dead fork from a September 2004 cddda2wav called icedax is full of bugs. The real cdda2wav has a compile option to set up a virtual TOC, but if you ever like to read a CD without a TOC, you not only need to tell cdda2wav the TOC by exiting the compiled in TOC, but you also need to kill any hostile software on your computer that tries to access CDs in an unapropriate way, such as hald or it's successors. Once such a program did try to access a problematic CD, you will never be able to access the CD unless you reload it - which will result in a new access attempt :-( Ugh. I think I'll have to build a VM for this, since I don't want to break my existing system. If the CD has a PMA (which I expect from writing in TAO mode), the disk should be readable by cdda2wav if you use a drive that understands the PMA. so, if cdrecord -minfo tells me it was written as TAO, then there should be a PMA and I might then be able to read it with cdda2wav? Thanks for the info! Fred Jörg -- View this message in context: http://centos.1050465.n5.nabble.com/CentOS-trying-to-recover-an-audio-CD-tp5717892p5718276.html Sent from the CentOS mailing list archive at Nabble.com. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] lxde
On Mon, 2013-04-29 at 20:12 +0200, Ibrahim Yurtseven wrote: Scott Robbins wrote: Anyway, ScientificLinux forums have a post about building lxde. It is time consuming, but if you really want it http://scientificlinuxforum.org/index.php?showtopic=759 I googled for epel and lxde and found this repo: http://repos.fedorapeople.org/repos/cassmodiah/LXDE.epel6/ That is 32 bit, the machine I want to put it on is 64 bit. It is a dual core 2Ghz processor with 3 gig ram so will see how it stands up running the apps I want under gnome as a server. Thanks for the replies. Gary. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] trying to recover an audio CD...
On 05/01/2013 11:33 PM, fredex wrote: Fred Smith [hidden email] wrote: Jörg: [snip] - Is it possible to use the original drive that was used for writing? the original isn't a drive per se, it's a professional audio recorder, rack-mounted, that contains a CD drive of some sort. I THINK what happened was the recorder was powered off while writing. Probably made a huge mess of the data, or at least left it in some bad unfinished state. I have used such a recorder, and the one I used WAS capable of recovering a disk from a mess like what you describe. But...it takes a while. It has to read the entire disk (and it is designed to read at 1X), figure out what is on it, and then finalize it. If you can get access to the original recorder, I would suggest you let it try to clean up its own mess. Even better would be to get hold of the manual (paper or online) and see what it suggests for finalizing a disk that has been removed from the recorder. Ted Miller Elkhart, IN ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Configuring source-specific routing
http://www.linuxjournal.com/article/7291 http://tldp.org/HOWTO/Adv-Routing-HOWTO/lartc.rpdb.multiple-links.html might probably help you suomi On 2013-05-01 22:05, Michael Mol wrote: I'm attempting to configure source-specific routing so that my servers can exist on multiple subnets from multiple upstream providers. A rough diagram of the network layout: ISP1 router (blackbox, routes subnet A, address on subnet A) \ ---eth0(firewall)eth1---((servers)) / ISP2 router (blackbox, routes subnet B, address on subnet B) The aim is to allow the servers to use both subnet A and subnet B. To allow this, any machine on both subnets must have source-specific routing configured, else packets originating from one ISP's AS will be directed at the other's router, and neither ISP cares for that. At the moment, I'm focusing on getting the second ISP properly added to the firewall box. The firewall box is using CentOS 6.4, and normally passes traffic back and forth via proxy_arp. None of my interfaces are NM_CONTROLLED, and NetworkManager is not installed, much less started. I've created a route-eth0:1 file that looks roughly like this: 10.0.0.1 dev eth0:1 \ src 10.0.0.2 \ from 10.0.0.0/29 default via 10.0.0.1 dev eth0:1 \ src 10.0.0.2 \ from 10.0.0.0/29 (Treat indented lines as continuations of the previous line) (No, the ISPs aren't giving me RFC1918 addresses; these are redacted.) If I run ifup eth0:1, ip route show includes the lines: 10.0.0.1 dev eth0 scope link src 10.0.0.2 10.0.0.0/29 dev eth0 proto kernel scope link src 10.0.0.2 default via 10.0.0.1 dev eth0 Note that the from 10.0.0.0/29 clause is missing. With the addition of a second default route on my firewall/gateway without any restriction on which traffic should go that way, my whole network, of course, tanks. I'm surprised it's been such a pain; I would have expected it to be a relatively common configuration. What's the proper way of doing source-specific routing on CentOS? ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] lxde
On 5/1/2013 8:44 PM, Gary Hodder wrote: That is 32 bit, the machine I want to put it on is 64 bit. It is a dual core 2Ghz processor with 3 gig ram so will see how it stands up running the apps I want under gnome as a server. if you only have 3gb ram, there's no real point in running 64bit applications (or even a desktop shell), even if your OS is 64bit. you'd just need the 32bit X libraries available. -- john r pierce 37N 122W somewhere on the middle of the left coast ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
