Re: [CentOS] CentOS on new Thinkpads
John R Pierce wrote: > I have not much cared for Lenovo since IBM sold out to them. I haven't noticed any change in quality at all. I guess the IBM laptops were always manufactured in China anyway. There seem to be more problems running CentOS and Fedora on new laptops, but that lies in the hands of CentOS/Fedora. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT: Backup Question/Solution
TE Dukes wrote: > I purchased a 128GB flash drive. I can't get Mondo to write to it. I want > to be able to make this device bootable. Do I need it reformat it from a > Windows file system to ext4? I never had to format a blank DVD previously. > > Is there a better solution for backing up a home system to some sort of > external media? I don't know if it is better, but I use BackupPC. This has an archive option to copy the latest backup to somewhere else. I use it to backup to an external drive every fortnight or so. (I backup every night to a different hard drive on my CentOS machine.) -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] KMail
Yamaban wrote: > On Sun, 24 Jul 2016 14:44, Timothy Murphy wrote: >> KMail seems to work on other Linux OS's. > Work? Keyword here is "seems". > [rant] > Since Kmail1 on KDE3 there is no really fully working > version that does not bork up your mail semi regulary. > But what do you call a program that destroys your mail > more often than once per year? I haven't found either of those problems on Fedora-24/KDE. I have criticisms of KMail, but basically it works fine for me. Actually I save email on my CentOS-7 home server, and back it up (with BackupPC) every night, so it would not be the end of the world if Fedora KMail ate my email. But it doesn't. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] KMail
Any hope of KMail (and Kontact) coming to CentOS-7? What exactly is the problem? KMail seems to work on other Linux OS's. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS 7.2 and KDE
Jeff Layton wrote: > I apologize if this is off-topic. I just installed CentOS 7 on my laptop > and I used KDE. I can't seem to get the "hibernate" option. I've tried > editing the options under "Power" but it hasn't appeared. Any thoughts? Just tp say that I'm running CentOS-7.2/KDE and see the Hibernate option when I click on the CentOS icon in the panel and choose Leave. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Problem with cloud-init on re-boot
When I re-boot my CentOS 7 machine I get lots of error/warning messages like the following: -- Jan 1 14:39:04 alfred cloud-init: 2016-01-01 14:39:04,351 - url_helper.py[WARNING]: Calling 'http://169.254.169.254/2009-04-04/meta-data/instance-id' failed [2/120s]: unexpected error ['NoneType' object has no attribute 'status_code'] -- Re-booting with the current kernel, 3.10.0-327.22.2.el7.x86_64, sometimes fails, I think because of this problem, although the previous kernel seems to avoid the issue. I've actually disabled cloud-init, but I'm wondering if there is a simple solution to the problem? Actually, I don't remember installing cloud-init; maybe it was brought in by some other package? It's not clear to me why I should need it; is it a necessary adjunct to libvirtd? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Help sought for email problem
My home server is running CentOS-7.1 I'm running postfix and dovecot on it. I collect email from a few sources with fetchmail and move it to ~/Maildir/cur/ with procmail. Or at least, I did do this. For some reason procmail has stopped doing its job, and the email that I collect is finishing in /var/spool/mail/tim/ I can't work out what has caused this, or what the cure is. I haven't changed postfix or dovecot config files, or .procmailrc. I did stop and re-start postfix and dovecot on the server, which I haven't done for some time, so it is possible some earlier upgrade has come into play. Any advice or elucidation gratefully received. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] dnf replacing yum?
Kenneth Porter wrote: > I saw mention of dnf in a blog article about installing a package on > CentOS. Further investigation revealed that Fedora is replacing yum with > dnf, apparently a new and better yum. But it wasn't clear if dnf was a For the normal user (like me) dnf is neither better nor worse than yum. In fact it is almost identical. In my view, the introduction of a new name was completely unnecessary and the cause of the only (small) complication with the changeover, eg should I look in /etc/yum.repos.d/ or /etc/dnf.repos.d/ ? Also, yum had associations which it was sad to lose. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: Linksys router misbehaviour
I'm running a Linksys WRT54GL router from my CentOS-7 home server. Every now and then (maybe once every 2 days) the router's WiFi cuts out, and I've found no way to solve this except to disconnect the power from the router, wait 10 seconds and then re-connect. This always works. The router is running under dd-wrt. My question is - which makes it a tiny bit CentOS-related - does anyone with such a router know of a way to wake the router up in such a case through the computer? I wouldn't have dared to ask this question here or anywhere until recently, as I assumed my ancient Linksys routers were obsolete. But I've been reading posts recently saying that there hasn't really been a Linux router to replace the WRT54GL, and in particular Linksys's recent 11n replacement is not as good as the old model in many ways. Anyway, if anyone has an answer to my query I would be very grateful. I have a couple of IP cameras working by WiFi on the computer, which I can look at remotely. I've connected one by TP-Link through the router, and this doesn't cut out, but it is not wholly satisfactory. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Copying CentOS to new drive
I recently asked about copying a running system to a new drive. As a postscript, I'm wondering if it would have been preferable to run the machine under a Live OS, and simply copy the root partition to the new drive? Eg while running under the LiveOS, # mkdir /mnt/old /mnt/new # mount /dev/sda7 /mnt/old # mount /dev/sdb6 /mnt/new # cp -avx /mnt/old /mnt/new or # rsync -ax --progress /mnt/old /mnt/new -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Copying a live system
m.r...@5-cent.us wrote: >> I want to backup my current CentOS-7.2 system to another drive. >> Is it safe to copy the system while it is running? >> Eg by >> mount /dev/sdb5 /mnt >> rsync -HPaxvz /. /mnt/ >> I've found contradictory advice on the web. > > Yes. When we're cloning a system, such as a compute node in a cluster, or > rsync upgrading, we > rsync -HPavxz /. newmachine:/new/. > rsync -HPavxz /boot/. newmachine:/boot//new/. Thanks very much to you, and all who responded to my query. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Copying a live system
I want to backup my current CentOS-7.2 system to another drive. Is it safe to copy the system while it is running? Eg by mount /dev/sdb5 /mnt rsync -HPaxvz /. /mnt/ I've found contradictory advice on the web. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] [OT] disk utility showing message "the partition is misaligned by"
g wrote: > after new install, transfer my current /home to new drive, wipe > current drive, partition and format it. > > anyone see anything wrong with such thinking? I assume you would have to run grub2-mkconfig and grub2 install or equivalent. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Dual boot C7 with Window 10
Chris Murphy wrote: > What you should revert back to UEFI only, with Secure Boot enabled, > and reinstall CentOS, deleting the previous partition/mount points > including the BIOS Boot partition that was created for CentOS's > bootloader. > The gotcha is that with Secure Boot enabled, the CentOS GRUB-efi > package doesn't support chainloading the Windows bootloader. This is > getting fixed in Fedora 24 but I have no idea how long it'll take to > get to CentOS 7. You could either disable Secure Boot (which I don't > recommend) or you switch between CentOS and Windows using the > firmware's boot manager. You'll have to figure out which F key brings > up the boot manager. On my Intel NUC it's F10, *shrug*. May I ask a couple of questions which I'm afraid betray my ignorance. 1. Why is it advisable to "revert back to UEFI"? Is this just a safety measure? I would have thought that if an intruder had got in this far, enabling him to install unsigned modules, he would have you at his mercy anyway? 2. I installed CentOS-7.2.1511 from a Live USB stick, and I have a Windows 10 partition that I can boot into. So I assume that UEFI is not used by default? Will it become so at some point? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Problem updating ddclient
Timothy Murphy wrote: > when I ran "sudo yum update" on my CentOS-7.2.1511 today, > ddclient was updated to ddclient-3.8.3-1.el7.noarch (from 3.7.3), > and ddclient.conf was moved to ddclient.conf.rpmsave . > > When I move it back, "sudo systemctl restart ddclient" > fails with the error (in "sudo journalctl -xe | grep ddclient") > Apr 21 13:05:39 alfred.gayleard.eu.localdomain touch[8590]: /bin/touch: > cannot touch ‘/var/cache/ddclient/ddclient.cache’: Permission denied > > I see that when updating ddclient a new group ddclient was created. > I've tried various methods, eg deleting ddclient.cache, > re-installing ddclient, > creating a new ddclient.cache owned by root.ddclient, etc, > but without success. > Running "sudo systemctl restart ddclient" either fails, or hangs. > > Any advice gratefully received. > > Is there a way to go back to the previous version of ddclient? > when I try "sudo yum downgrade ddclient-3.7.3" > I'm told "No package ddclient-3.7.3 available" I've managed to return to the previous version, by going to http://fr2.rpmfind.net/linux/rpm2html/search.php?query=ddclient downloading ddclient-3.7.3-1.el5.rf.noarch.rpm , and running sudo yum downgrade ~/ddclient-3.7.3-2.el7.rf.noarch.rpm -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Problem updating ddclient
when I ran "sudo yum update" on my CentOS-7.2.1511 today, ddclient was updated to ddclient-3.8.3-1.el7.noarch (from 3.7.3), and ddclient.conf was moved to ddclient.conf.rpmsave . When I move it back, "sudo systemctl restart ddclient" fails with the error (in "sudo journalctl -xe | grep ddclient") Apr 21 13:05:39 alfred.gayleard.eu.localdomain touch[8590]: /bin/touch: cannot touch ‘/var/cache/ddclient/ddclient.cache’: Permission denied I see that when updating ddclient a new group ddclient was created. I've tried various methods, eg deleting ddclient.cache, re-installing ddclient, creating a new ddclient.cache owned by root.ddclient, etc, but without success. Running "sudo systemctl restart ddclient" either fails, or hangs. Any advice gratefully received. Is there a way to go back to the previous version of ddclient? when I try "sudo yum downgrade ddclient-3.7.3" I'm told "No package ddclient-3.7.3 available" -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Free Redhat Linux (rhel) version 7.2
Johnny Hughes wrote: > On 04/04/2016 08:39 AM, Timothy Murphy wrote: >> I read that Redhat was offering their Linux free, >> and downloaded the ISO, though I haven't run it. >> >> What do CentOS users think of Redhat's offer? > You need read the usage license. I glanced through this before downloading the ISO. But I can't locate it now on the RedHat website(s). > That subscription can only be used in development and not in a > production environment. > > If that works for want you want to use it for then it is an awesome move > by Red Hat. I run CentOS on two home servers (in different countries), and have no ambition to make money from them, which I take is the meaning of "production" in this context. Surely there must be many CentOS users like me? I found puzzling the suggestion (not by Johnny Hughes) that RedHat's offer is of little value. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Free Redhat Linux (rhel) version 7.2
I read that Redhat was offering their Linux free, and downloaded the ISO, though I haven't run it. What do CentOS users think of Redhat's offer? The registration with Redhat seemed very bureaucratic to me, and I'm not sure if I have carried it out properly. Also, I didn't see if it was possible to get updates, either with dnf or some other way. I've been (and am) very pleased with CentOS, which I've been running for several years, and I don't particularly want to change. Any views on this? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] firewalld question
Matthew Miller wrote: >> I'n wondering if it is possible to have Centos-7 automatically change >> firewall zones, depending on the network we conect to. > The way to do this is changing the zone for the network in > NetworkManager. Are there two different ways of setting firewalld zones, in firewalld and in NetworkManager? Which is taken if they differ? > (This works easily for wifi networks and is kind of a > pain for wired ones, unfortunately, since there's not necessarily a > good way to distinguish.) I don't have a CentOS (or RHEL) desktop and I > don't remember offhand when this hit, but in Fedora, run the > NetworkManager config panel, hit config on a network, and change the > zone on the Security tab. > > Or, put "ZONE=public" or "ZONE=work" or whatever in the ifcfg file for > the network. > > I'm hoping in the future to make this better, but there are actually a > lot of different parts involved so it's hard to get everyone to agree > on the best approach. > > I personally make "public" my default zone, and then add zones that > should be more trusted to networks that should be more open. I find the firewalld definition of "zones" rather confusing. I run shorewall on my home server, and that seems to me to have a much simpler definition of zones. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Alternative IP addresses
Frank Cox wrote: > Why not put mydomain.com 192.168.whatever in your /etc/hosts file? No > need to run a dns server to hard-code one single lookup like that. Thanks very much, that seems to work. I added "www.myserver.com" to the line starting 192.168.2.5. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Alternative IP addresses
Barry Brimer wrote: > > >> My CentOS-7 home server has a static IP address. >> >> Is there a simple way of organizing the hpptd server >> so that it is accessible through this address at a remote host, >> but is accessed at its 192.168 address by a laptop on the WiFi LAN? > > Is the static IP address that you mention public or private? It is a public IP address. > You could use Limit statements in apache or iptables firewalling to do > this. I guess there could be a way of organizing what I want through shorewall, which I am running on my home server? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Alternative IP addresses
John R Pierce wrote: >> My CentOS-7 home server has a static IP address. >> >> Is there a simple way of organizing the hpptd server >> so that it is accessible through this address at a remote host, >> but is accessed at its 192.168 address by a laptop on the WiFi LAN? > are you also running your own DNS at home? I'm not running my own DNS server, and would prefer not to. > is this httpd server 'dual > homed' and have a NIC on both the internet side and your local LAN ? I'm not quite sure what "dual-homed" means. The machine on which httpd runs has a fixed IP address. Is there any way this machine could be accessed on the local LAN through this IP address, rather than 192.168... ? > you could run split DNS, so on your LAN, mydomain.com is 192.168.x.x > while on the internet, mydomain.com is the actual IP address. I'd rather not run a DNS server on my machine. I tried this some years ago, and ran into trouble. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Alternative IP addresses
My CentOS-7 home server has a static IP address. Is there a simple way of organizing the hpptd server so that it is accessible through this address at a remote host, but is accessed at its 192.168 address by a laptop on the WiFi LAN? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] heads up: /boot space on kernel upgrade
Devin Reade wrote: > I have a CentOS 6 machine that was initially installed as CentOS 6.4 > in May of 2013. It's /boot filesystem is 200M which, IIRC, was the > default /boot size at the time. As a matter of interest, is there any advantage today in having a /boot partition? I thought it went back to the days when the boot-loader had to be near the beginning of the disk? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Just need to vent
Jonathan Billings wrote: >> > Maybe you're not >> > aware of it, but there are a LOT of things that systemd fixes that >> > people are happy about. >> Like what ? I don't remember there were as many errors to fix before >> systemd appeared. > I suggest reading the previous emails (SOME OF WHICH YOU REPLIED TO) > that listed many of the features people are happy about. I don't take a position in the systemd argument, but you said that systemd fixes lots of problems. It is perfectly reasonable to ask you to name one of these problems, perhaps the one you think is most important. I would say exactly the same to anyone who said systemd causes lots of problems, without specifying any. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] How does Live CD find OS's?
If I boot into CentOS on my home server from a Live CD or USB stick and go to Troubleshoot, it lists OS's it finds on the machine. How does it find these OS's? Presumably it looks through all the partitions on all the hard disks for something that looks like an OS? But how exactly does it identify an OS? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How does Live CD find OS's?
Chris Murphy wrote: > Live CD does not have a troubleshoot boot sub menu option. If I boot into CentOS-7-x86_64-LiveKDE-1503.iso there is a Troubleshooting option, and if I choose this there is an option to "Boot into Local Disk". Clicking on this gives a list of OS's to boot into. It seems this does run through all partitions, running os-prober on each. I thought os-prober was an object file, but I see it is a bash script, so hopefully I can see exactly what it does. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] How does Live CD find OS's?
Jonathan Billings wrote: > I know that in el7, grub2 uses os-prober > (http://joeyh.name/code/os-prober/), which is probably what it uses in > the LiveCD. Yes, thanks. I confused os-prober with grub2-probe, which is an executable file. Hopefully I should be able to work out why I am getting this cannot find a GRUB drive for /dev/block/8 error when I run grub2-mkconfig -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] grub2-mkconfig strange error
When I run "grub2-mkconfig" on my CentOS-7.1 desktop I get the warning (4 times) /usr/sbin/grub2-probe: error: cannot find a GRUB drive for /dev/block/8. Check your device.map. What exactly does this mean? My device map looks perfectly normal to me: [root@helen ~]# cat /boot/grub2/device.map (hd0) /dev/sda (hd1) /dev/sdb This makes me reluctant to boot into CentOS-7.2. An additional, possibly related, query. When I run grub2-mkconfig it lists various OS's it finds: = Found Windows 7 (loader) on /dev/sda1 Found CentOS Linux release 7.1.1503 (Core) on /dev/sda12 Found Windows 7 (loader) on /dev/sdb1 Found CentOS release 6.5 (Final) on /dev/sdb5 Found CentOS release 5.6 (Final) on /dev/sdc7 done = Why does it not list CentOS 7.2 since it = Found linux image: /boot/vmlinuz-3.10.0-327.4.4.el7.x86_64 Found initrd image: /boot/initramfs-3.10.0-327.4.4.el7.x86_64.img = -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] How to correct LiveKDE stick?
CentOS-7-x86_64-LiveKDE-1511.iso crashes on my AMD/ATI Radeon machine. I installed CentOS-7.2 by first installing CentOS-7-x86_64-LiveKDE-1503.iso, then appending GRUB_CMDLINE_LINUX_DEFAULT="initcall_blacklist=clocksource_done_booting" to /etc/default/grub and running update-grub. My question is: would there be any way, short of re-compiling the ISO, of altering the grub.cfg seen when booting from a USB stick? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] No GUI with CentOS-7.2
Timothy Murphy wrote: > Sylvain CANOINE wrote: > >> Could you share your whole Xorg.0.log ? Do you use a custom xorg.conf, or >> custom xorg.conf.d files ? Opensource Ati driver, ou proprietary blobs ? > > Thank you for your interest. > I am running CentOS-7 installed from CentOS-7-x86_64-LiveKDE-1503.iso > and later upgraded to CentOS-7.2. > The only packages I have installed have been from CentOS and Epel repos. > I'm sure the ATI Radeon driver is open-source. > The Radeon firmware comes from the kernel-firmware package - > I don't know if any of that is proprietary? > There is no xorg.conf file, > I assume this is replaced by /usr/share/X11/xorg.conf.d/* . > > I'm attaching Xorg.0.log - I don't know if that is allowed here? I see that attachments are not allowed. I'll try posting Xorg.0.log here - I've deleted an enormous list of Radeon chipsets, leaving only the one applicable in my case: == [ 28214.668] X.Org X Server 1.17.2 Release Date: 2015-06-16 [ 28214.668] X Protocol Version 11, Revision 0 [ 28214.668] Build Operating System: 2.6.32-220.17.1.el6.x86_64 [ 28214.668] Current Operating System: Linux alfred.gayleard.eu.localdomain 3.10.0-327.3.1.el7.x86_64 #1 SMP Wed Dec 9 14:09:15 UTC 2015 x86_64 [ 28214.669] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-327.3.1.el7.x86_64 root=UUID=370b44c7-9422-43af-bed9-a797c10bcbf7 ro vconsole.font=latarcyrheb- sun16 vconsole.keymap=ie crashkernel=auto rhgb quiet initcall_blacklist=clocksource_done_booting [ 28214.669] Build Date: 20 November 2015 02:44:25PM [ 28214.669] Build ID: xorg-x11-server 1.17.2-10.el7 [ 28214.669] Current version of pixman: 0.32.6 [ 28214.669]Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 28214.669] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 28214.669] (==) Log file: "/var/log/Xorg.0.log", Time: Mon Jan 4 23:31:21 2016 [ 28214.670] (==) Using config directory: "/etc/X11/xorg.conf.d" [ 28214.670] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 28214.671] (==) No Layout section. Using the first Screen section. [ 28214.671] (==) No screen section available. Using defaults. [ 28214.671] (**) |-->Screen "Default Screen Section" (0) [ 28214.671] (**) | |-->Monitor "" [ 28214.671] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. [ 28214.671] (==) Automatically adding devices [ 28214.671] (==) Automatically enabling devices [ 28214.671] (==) Automatically adding GPU devices [ 28214.671] (==) FontPath set to: catalogue:/etc/X11/fontpath.d, built-ins [ 28214.671] (==) ModulePath set to "/usr/lib64/xorg/modules" [ 28214.671] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [ 28214.671] (II) Loader magic: 0x7fc8e5fad020 [ 28214.671] (II) Module ABI versions: [ 28214.671]X.Org ANSI C Emulation: 0.4 [ 28214.671]X.Org Video Driver: 19.0 [ 28214.671]X.Org XInput driver : 21.0 [ 28214.671]X.Org Server Extension : 9.0 [ 28214.672] (II) xfree86: Adding drm device (/dev/dri/card0) [ 28214.674] (--) PCI:*(0:1:5:0) 1002:9712:103c:1609 rev 0, Mem @ 0xf000/134217728, 0xfe7f/65536, 0xfe60/1048576, I/O @ 0xd000/256, BIOS @ 0x/131072 [ 28214.674] (II) LoadModule: "glx" [ 28214.674] (II) Loading /usr/lib64/xorg/modules/extensions/libglx.so [ 28214.677] (II) Module glx: vendor="X.Org Foundation" [ 28214.677]compiled for 1.17.2, module version = 1.0.0 [ 28214.677]ABI class: X.Org Server Extension, version 9.0 [ 28214.677] (==) AIGLX enabled [ 28214.677] (==) Matched ati as autoconfigured driver 0 [ 28214.677] (==) Matched ati as autoconfigured driver 1 [ 28214.678] (==) Matched modesetting as autoconfigured driver 2 [ 28214.678] (==) Matched fbdev as autoconfigured driver 3 [ 28214.678] (==) Matched vesa as autoconfigured driver 4 [ 28214.678] (==) Assigned the driver to the xf86ConfigLayout [ 28214.678] (II) LoadModule: "ati" [ 28214.678] (II) Loading /usr/lib64/xorg/modules/drivers/ati_drv.so [ 28214.678] (II) Module ati: vendor="X.Org Foundation" [ 28214.678]compiled for 1.17.2, module version = 7.5.0 [ 28214.678]Module class: X.Org Video Driver [ 28214.678]ABI class: X.Org Video Driver, version 19.0 [ 28214.678] (II) LoadModule: "radeon" [ 28214.678] (II) Loading /usr/lib64/xorg/modules/drivers/radeon_drv.so [ 28214.679] (II) Module radeon: vendor="X.Org Foundation" [ 28214.679]compiled for 1.17.2, module version = 7.5.0 [ 28
Re: [CentOS] No GUI with CentOS-7.2
Timothy Murphy wrote: > When I re-booted my HP MicroServer into CentOS-7.2 > I was given a text console. I found the solution in the end, I think from a hint dropped by Johnny Hughes. I was missing a number of KDE packages, I'm not sure why. But when I ran "sudo yum install kde-workspace" there were a couple of dependency conflicts. I managed to overcome these by yum-removing 2 packages, and then re-installing kde-workspace filled the gaps. As a precaution, I ran "sudo yum distro-sync" which for some reason downgraded a dozen packages. After that I re-booted into CentOS-7.2 and was given the desired graphic console. I think I probably overlooked an error message that came up when I updated the system remotely. (The server was in another country.) Thanks for all the suggestions I received. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] A query on graphic console
I'm only getting a text console with CentOS-7.2 on my (oldish) HP MicroServer. The only explicit error I see in Xorg.0.log is that no driver is found for my Pixart USB optical mouse. My query is: would that be sufficient to prevent a graphic console? Incidentally, I can use X apps, eg xpdf, if I ssh in from my laptop. As always, any advice gratefully received. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] No GUI with CentOS-7.2
Sylvain CANOINE wrote: > Could you share your whole Xorg.0.log ? Do you use a custom xorg.conf, or > custom xorg.conf.d files ? Opensource Ati driver, ou proprietary blobs ? Thank you for your interest. I am running CentOS-7 installed from CentOS-7-x86_64-LiveKDE-1503.iso and later upgraded to CentOS-7.2. The only packages I have installed have been from CentOS and Epel repos. I'm sure the ATI Radeon driver is open-source. The Radeon firmware comes from the kernel-firmware package - I don't know if any of that is proprietary? There is no xorg.conf file, I assume this is replaced by /usr/share/X11/xorg.conf.d/* . I'm attaching Xorg.0.log - I don't know if that is allowed here? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] No GUI with CentOS-7.2
Earl A Ramirez wrote: >> When I re-booted my HP MicroServer into CentOS-7.2 >> I was given a text console. >> When I run "startx" I get the response on screen [edited]: >> = >> [tim@alfred ~]$ startx >> xauth: file /home/tim/.serverauth.21307 does not exist >> X.Org X Server 1.17.2 >> Release Date: 2015-06-16 >> X Protocol Version 11, Revision 0 >> Build Operating System: 2.6.32-220.17.1.el6.x86_64 >> ... >> Build ID: xorg-x11-server 1.17.2-10.el7 >> ... >> xinit: connection to X server lost >> waiting for X server to shut down (II) Server terminated successfully >> (0). Closing log file. >> = > What is your is your default target of the server, systemctl get-default? [tim@alfred ~]$ sudo systemctl get-default graphical.target -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS-7.2 kernel panic
Timothy Murphy wrote: >>> My HP MicroServer crashes with a kernel panic >>> when booted into kernel-3.10.0-327.3.1.el7.x86_64, >>> but runs perfectly under kernel-3.10.0-229.20.1.el7.x86_64 . > >> AMD Turion64 cpu? >> Could be related to: >> https://bugs.centos.org/view.php?id=9860 >> uptream at https://bugzilla.redhat.com/show_bug.cgi?id=1285235 Thank you again. I followed a suggestion in this bug report, appending the line GRUB_CMDLINE_LINUX_DEFAULT="initcall_blacklist=clocksource_done_booting" to /etc/default/grub , and running # grub2-mkconfig > /boot/grub2/grub.cfg Now I could re-boot into CentOS-7.2 with kernel 3.10.0-327.3.1.el7.x86_64 . -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] No GUI with CentOS-7.2
When I re-booted my HP MicroServer into CentOS-7.2 I was given a text console. When I run "startx" I get the response on screen [edited]: = [tim@alfred ~]$ startx xauth: file /home/tim/.serverauth.21307 does not exist X.Org X Server 1.17.2 Release Date: 2015-06-16 X Protocol Version 11, Revision 0 Build Operating System: 2.6.32-220.17.1.el6.x86_64 ... Build ID: xorg-x11-server 1.17.2-10.el7 ... xinit: connection to X server lost waiting for X server to shut down (II) Server terminated successfully (0). Closing log file. = No error is given in /var/log/Xorg.0.log. It seems to find an appropriate ATI Radeon driver, but it has the warnings (WW) Falling back to old probe method for modesetting (WW) Falling back to old probe method for fbdev (WW) Falling back to old probe method for vesa Also it ends with what look like a problem with the USB mouse: (II) config/udev: Adding input device PIXART USB OPTICAL MOUSE (/dev/input/mouse0) (II) No input driver specified, ignoring this device. (II) This device may have been added with another device file. (II) config/udev: Adding input device PC Speaker (/dev/input/event5) (II) No input driver specified, ignoring this device. (II) This device may have been added with another device file. (II) evdev: PIXART USB OPTICAL MOUSE: Close (II) UnloadModule: "evdev" (II) evdev: HID 04f3:0103: Close (II) UnloadModule: "evdev" (II) evdev: HID 04f3:0103: Close (II) UnloadModule: "evdev" (II) evdev: Power Button: Close (II) UnloadModule: "evdev" (II) evdev: Power Button: Close (II) UnloadModule: "evdev" (II) Server terminated successfully (0). Closing log file. Any advice or suggestions gratefully received. Nb This is a remote machine, and I have not actually seen the screen for several months, so this probably has nothing to do with CentOS-7.2. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS-7.2 kernel panic
Tru Huynh wrote: > On Fri, Jan 01, 2016 at 11:53:51PM +0100, Timothy Murphy wrote: >> My HP MicroServer crashes with a kernel panic >> when booted into kernel-3.10.0-327.3.1.el7.x86_64, >> but runs perfectly under kernel-3.10.0-229.20.1.el7.x86_64 . > AMD Turion64 cpu? > Could be related to: > https://bugs.centos.org/view.php?id=9860 > uptream at https://bugzilla.redhat.com/show_bug.cgi?id=1285235 Thank you very much. My HP MicroServer does indeed have an AMD Turion64 cpu, and the kernel crash-code listed in the bug you cite is exactly what I see. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-7.2 kernel panic
My HP MicroServer crashes with a kernel panic when booted into kernel-3.10.0-327.3.1.el7.x86_64, but runs perfectly under kernel-3.10.0-229.20.1.el7.x86_64 . I've been trying to save the panic message with kdump, but am not sure how one can configure kdump to do this, if indeed that is possible. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Re-booting into CentOS-7.2 - advice sought
I have a remote home server updated to CentOS-7.2.1511 (as stated in /etc/redhat-release) but I have not re-booted since the update. The machine is currently running kernel 3.10.0-229.11.1.el7.x86_64. I'm wondering if anyone has advice on any safety steps I can take before re-booting, so that in the event of failure I can give simple instructions to my daughter at the other end on how to get the system running? Any suggestions gratefully received. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Centos-7.2 LiveKDE does not work properly
CentOS-7-x86_64-LiveKDE-1511.iso installed on a USB stick does not work properly - it takes over 6 minutes to boot. Who can I report this to? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS-7.2 USB stick problem
Timothy Murphy wrote: > I've installed CentOS-7-x86_64-LiveKDE-1503.iso > and CentOS-7-x86_64-LiveKDE-1511.iso > on two USB sticks. > The first boots up in 90 seconds, > but the second takes almost 7 minutes. > (I'm talking about the time until my laptop becomes usable.) As an experiment, I installed CentOS-7-x86_64-LiveGNOME-1511.iso on the same USB stick (in place of the LiveKDE iso). This runs perfectly; the 5 minute pause on the LiveKDE stick takes only 5 seconds under LiveGNOME. It seems that there is a bug in the CentOS-7.2 LiveKDE OS. To repeat, after 5 minutes a small window comes up saying "Unable to save bookmarks in /home/liveuser/.share/userspaces.xbel. Repeated error was insufficient permissions in target directory. This error message will only be shown once. The cause of the error needs to be fixed as soon as possible, which is most likely a full hard drive." If anyone has a way around this problem I should be glad to hear it. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS and typical usage
Alice Wonder wrote: > As far as customizing CentOS / Fedora for server vs desktop vs laptop vs > whatever, to me that is a moot issue. > In the server environment you almost certainly are using a virtual > machine, and to use a virtual machine you create an image. What precisely do you mean by "the server environment"? I run a number of home servers on HP MicroServers. Evidently this is not a "server environment" in your view. The only sense I can give to your phrase is "a system run by one or more paid sysadmins". -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-7.2 USB stick problem
I've installed CentOS-7-x86_64-LiveKDE-1503.iso and CentOS-7-x86_64-LiveKDE-1511.iso on two USB sticks. The first boots up in 90 seconds, but the second takes almost 7 minutes. (I'm talking about the time until my laptop becomes usable.) After 5 minutes a small window comes up saying it cannot save bookmarks because it does not have permission in the required directory. I assume the delay is a timeout, perhaps due to SELinux? Once it has started up it seems to run properly. I wondered if anyone else has encountered this? I'll try installing the minimal version of CentOS-7.2 on the USB stick and see if that is better. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Need firewalld clue
Yamaban wrote: >> So is the goal for firewalld to implement a GUI for iptables? What is the >> "value added" by firewalld? >>ThanksNick Geo > > Well, the order from Kernel inside outward is: > > 1. Netfilter (inside Kernel), not directly accessible by userland > > 2. iptables/iptables6, the userland cli tools to manipulate the Netfilter > entries, mighty and complex, error-prone for casual use. > > 3. firewalld(RedHat/CentOS), or SuSEfirewall(Suse), or similar are the > tools that simplify the task of creating the needed iptable rules, as > not every one wants to write them by hand. > > 4. GUI tools, that allow to manipulate the config of firewalld (or > similar), > for those that are unfamilar with the command line, or want a quick > and graphical way to do the job needed. It might be mentioned that the previous firewall is still available. It can obtained by "yum install system-config-firewall". Actually I use shorewall - I'm not sure how this compares with firewalld. It is certainly much better documented. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS and typical usage
Alice Wonder wrote: > One of the benefits of systemd is the dependency based parallel startup. > The same speed can often be achieved with system V init by fine tuning > when the services start but systemd does that automatically. If it's no faster then why is it a benefit? > Just that it is not > difficult to use, there are some advantages - Why don't you say what the advantages are, instead of launching into a philosophical discussion of "market share". -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS and typical usage
Alice Wonder wrote: > In the server environment you almost certainly are using a virtual > machine, and to use a virtual machine you create an image. Set up the > image how you want and be done with it, you can then deploy it thousands > of times and it is set up the way you need it. Who is "you"? I'm running a home server under CentOS-7, and I'm not using a virtual machine. Why should I? I don't want to "deploy it thousands of times". It's amazing how people assume that everyone in the world is, or should be, running things in the same way as themselves. > I was one of the systemd haters initially but now I don't have an issue > with it. Yes it is different than what I learned, I dislike systemd because it is much more complicated than its predecessor, and it has no advantages in my case to make up for this. The main advantage that was originally claimed was that it boots faster. That is not the case on my Fedora laptop. It is no faster, and it is much harder to work out what is happening if something goes wrong. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] CentOS and typical usage
Alice Wonder wrote: > I mean the typical server and indicated a server environment opposed to > a home environment. To me, a server is a computer providing a service to other computers or electronic devices. It may be on a space-station, or it may be in someone's home - its whereabouts, or "environment" as you call it, is completely irrelevant. All that matters is what services it offers. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] wifi on servers and fedora [was Re: 7.2 kernel panic on boot]
Gordon Messmer wrote: > I think it's likely that, instead, you believe that you are > representative of all of the people who do your job, and that features > which you do not need are therefore not needed by others. That logic is > quite normal, but completely wrong. On the other hand, it would be relatively easy to determine the number of CentOS users, or CentOS machines, in various categories. For some reason both CentOS and Fedora seem to shy away from gathering this kind of information, or indeed any information from users. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 7.2 kernel panic on boot
Phelps, Matthew wrote: >> > Oh, wait: CentOS, love it or leave it. >> >> Correct. >> >> In fact, I would prefer you leave. > > Really? > > This is what we're dealing with now? > > OK. I will recommend we move away from CentOS. This seems to be raising what to me is a trivial issue to an absurd level of hostility. Johnny Hughes' comment was uncharacteristically harsh; and yours is even harsher. To me, CentOS is a highly stable OS for my home servers, and I am eternally grateful to Johnny Hughes and his colleagues for carrying out what looks to me like an impossibly complex task. The numbering of packages is a very small part of this. On the other hand, a kernel panic would be very worrying to me if it were in fact likely to happen. I am glad to hear that I have no need to worry. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] 7.2 kernel panic on boot
Always Learning wrote: > I always admire Johnny's prose, passion for Centos and his calm approach > to everything. Agreed. But two possibly OT and probably ignorant queries: 1. I am running a standard Centos 32-bit system on my home servers. I keep them up-to-date, but have not re-booted for several months. I see from /etc/centos-release that I am running 7.1. If I re-booted would this become 7.2? 2. If so, is this kernel panic a widespread phenomenon? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Two WiFi routers
Gordon Messmer wrote: > As a point of clarification: The setup that you're describing isn't > multiple WiFi routers, it's multiple WiFi Access Points. Thanks for your response, and for all the others. I am indeed using the two routers as Access Points, turning off dhcp on them, etc. I did actually try what has been suggested, but it didn't seem to work, which made me wonder if it was possible in principle. However, I almost certainly made some mistake setting up the second router/AP, which is actually an ancient Netopia router from my ISP, whose manual says it can be used as an AP. I see it with "arp -a" on my server, but I've now noticed I don't see it on my Android phone, or with "iwlist scan" on my laptop. Apologies, I don't think this router/AP is working ... -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] HTML5 to SQL under CentOS
Several years ago I wrote a simple, short, HTML/PHP program on my CentOS server for adding items to a MySQL/MariaDB database on the server from my Fedora laptop. Recently I thought I would try to be up-to-date and re-write the program using HTML5 Forms, which seemed the proper thing to do, but I'm finding this surprisingly difficult. Does anyone have, or can point me to, a simple HTML5 program (preferably not using Java or PHP) for this task ? I've already found that Firefox, the browser I normally use on my laptop, surprisingly (to me) does not support the HTML Forms date item, or at least does not have a date picker to go with it. So it seems I would have to use Chrome on my laptop, which is annoying but not fatal. Also it seems that CentOS does not support WebSQL. Is there an alternative that serves the same purpose. Any suggestions or advice gratefully received. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Two WiFi routers
Can I have two WiFi routers on the same LAN on my CentOS server? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Two WiFi routers
Richard Zimmerman wrote: > I've got a 3 building network... > > Buildings 1/2 between then have 3 wireless routers all pointed to one > CentOS server. > > The 3rd building across the WAN has 3 wireless routers all into one > server... > > In my case They are for local LAN access so they are setup to pint to a > single IP/gateway address... Thanks for your response. Do you have them on different channels? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Two WiFi routers
Richard Zimmerman wrote: >> Do you have them on different channels? > > YES, definitely If you have the room in the spectrum, ch1, skip2, ch3, > skip 4, ch5, etc... I've actually have mine set with two empty channels > between them as the 3rd building is a machine / fabrication shop with lots > and lots of RFI going on. So does a client laptop have to change NM setup if passing from one router to another? I wonder if one can specify a routers IP address to NM ? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT Strange IP address on home network
ken wrote:
> On 10/30/2015 09:01 AM, Timothy Murphy wrote:
>>>> So I guess the strange IP address probably comes from some Lite-On
>>>> device somewhere in my house - maybe on the server itself, an HP
>>>> MicroServer. There are so many possible electronic culprits today.
>>
>>> You should be able to use nmap to scan the device.
>>
>> Thanks very much for the suggestion, I'll try that.
> Try putting this line
> IPV6INIT=no
> in the relevant config file, probably something like
> /etc/sysconfig/networking/devices/ifcfg-eth?
> then restart your network.
I don't have a directory /etc/sysconfig/networking/ on my CentOS-7 server,
but I have IPV6INIT=no in /etc/sysconfig/network-scripts/ifcfg-enp{23}s0 .
Incidentally, I haven't yet worked out how to get any useful information
from nmap, as suggested by Johnny Hughes - I only get information
about open ports, which is interesting but not relevant to my query
about the 169.254.* address appearing in "arp -a" on my server.
I looked at "man nmap" but there seem to be an infinity of options.
--
Timothy Murphy
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin
___
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Re: [CentOS] OT Strange IP address on home network
zep wrote: >> Incidentally, I haven't yet worked out how to get any useful information >> from nmap, as suggested by Johnny Hughes - I only get information >> about open ports, which is interesting but not relevant to my query >> about the 169.254.* address appearing in "arp -a" on my server. >> I looked at "man nmap" but there seem to be an infinity of options. > assuming nmap says there's a web server running, can you connect to > it? Thank you for your response. However, you would probably have to give specific commands for me to understand your suggestions. There is a web server running on my home server "helen" at 192.168.2.5 which I can access with Firefox or Chrome by browsing to "helen". (The server is accessible remotely at www.gayleard.com .) How do you suggest I use nmap to find if there is a web server running? "sudo nmap -v -sn 192.168.0.0/16 10.0.0.0/8" tells me Nmap scan report for helen (192.168.2.5) Host is up (0.0037s latency). MAC Address: 00:1B:21:9F:36:DB (Intel Corporate) but I already knew that from "arp -a". > how did you run nmap against it? I'd think you would have to > create a dummy interface on the same network range to be able to > communicate to it. I'm not sure what that means. > I suspect something like a service > processor/ilo/rilo/whatever HP calls their management interface. > could you have powered the machine up first then waited a little while > before putting network cables in, esp in the one labeled 'mgmt'? Again, I'm not sure what you mean. "sudo locate rilo" doesn't find anything on my HP Microserver, which is running under CentOS-7.1 . Does HP have a "management interface" on my server? What would it be called? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT Strange IP address on home network
John R Pierce wrote: > On 11/1/2015 12:59 PM, Timothy Murphy wrote: >> Again, I'm not sure what you mean. >> "sudo locate rilo" doesn't find anything on my HP Microserver, >> which is running under CentOS-7.1 . >> Does HP have a "management interface" on my server? >> What would it be called? > > the "gen0" original microservers with the NxxL "Neo" processors have a > OPTIONAL remote management card that implments IPMI and iLO. I don't > have one in mine. > > here's someones blog about bringing his up. > https://www.liquidstate.net/hp-microserver-n40l/ Thanks for your comment, which led me to recall that when I started up my two HP Microservers almost 5 years ago under CentOS-5.5/KDE, I did look at the Remote Access Card. But I found that after installing an Intel PCIe Ethernet card there was no room in the rather crowded server for a second PCIe card. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT Strange IP address on home network
Johnny Hughes wrote: >> So I guess the strange IP address probably comes from some Lite-On device >> somewhere in my house - maybe on the server itself, an HP MicroServer. >> There are so many possible electronic culprits today. > You should be able to use nmap to scan the device. Thanks very much for the suggestion, I'll try that. I've been surprised how much information I get from iptraf-ng, which I only discovered recently. I knew about "arp -a", but I'm told I should be using "ip neigh". However, that doesn't give the name of each device on the network (if known), as arp does. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT Strange IP address on home network
John R Pierce wrote: >> So I guess the strange IP address probably comes from some Lite-On device >> somewhere in my house - maybe on the server itself, an HP MicroServer. > My HP Microserver N40L (the original version), the NIC is Broadcom, > > 02:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5723 > Gigabit Ethernet PCIe (rev 10) > > and its MAC is A0:B3:CC:xx:xx:xx I have the same Broadcom controller in my MicroServer, but there is a second Intel 82574L ethernet controller in the machine, which could conceivably be the culprit. What I don't really understand is why the dhcpd server on my CentOS machine does not give this device a proper address. (There are lots of spare 192.168.2.* slots.) As far as I can see from iptraf-ng, no packets are currently coming or going from this 169.254.* address, which I see from google is a "link-local" address. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] OT Strange IP address on home network
Why does "arp -a" show IP address 169.254.192.123 on my 192.168.2.0 home network? I recall seeing this IP address somewhere, but don't remember where. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] OT Strange IP address on home network
Mark Haney wrote: >> On 10/28/2015 9:04 AM, Timothy Murphy wrote: >> >>> Why does "arp -a" show IP address 169.254.192.123 >>> on my 192.168.2.0 home network? > Sounds like you have a host with a NIC that's configured for DHCP but > either can't communicate with the DHCP server, or there are no free IPs > for the DHCP server to give it. >> On 10/28/2015 9:04 AM, Timothy Murphy wrote: Thanks for your response. I should have said I'm running CentOS-7.1 on my home server. Also the actual "arp -a" entry on the server is (169.254.192.123) at 30:10:b3:2e:cb:ff I see that 30:10:b3 is assigned to Lite-On (or Liteon) which is a Taiwan company, who sell network cards among other things. And I find when I google to "liteon wifi network" that there are many queries (and complaints) about mysterious links involving liteon devices. So I guess the strange IP address probably comes from some Lite-On device somewhere in my house - maybe on the server itself, an HP MicroServer. There are so many possible electronic culprits today. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Exists some problem with cronjobs under CentOS7
John Hodrien wrote: > On Tue, 13 Oct 2015, C. L. Martinez wrote: > >> Nop, because binary logs (using journalctl) are disabled in this host >> ... But under /var/log/messages, there is no error ... > > Might it be an idea to *not* disable logging? More to the point, perhaps, is there any way of recovering the entries that used to be in /var/log/ eg maillog? Does "journalctl -u sendmail" give exactly the same information? And what exactly is the status of syslog now? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd userdir problem
Tony Mountifield wrote: >> I'm running httpd-2.4.6-31.el7.centos.1.x86_64 >> under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). >> >> I cannot get the httpd userdir facility working; >> when I try to access localhost/Menloe I get the message >> "You don't have permission to access /Menloe on this server." >> > You need to include your username in the URL, otherwise it doesn't know > whose public_html directory to look for. The username must be preceded > by a tilde, for example: > > http://localhost/~timothy/Menloe Yes, thanks, I discovered that later. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Is this a bug in CentOS-7 BackupPC?
Jonathan Billings wrote: > On Sat, Sep 26, 2015 at 08:12:40PM +0100, Timothy Murphy wrote: >> I don't really understand this. >> The perl script wants to create /var/run/BackupPC/BackupPC.sock >> which it seems it cannot do unless /var/run/BackupPC/ exists. >> If as you say this disappears on re-booting, >> I don't see how this program could work. > The contents of the /etc/tmpfiles.d/BackupPC.conf file looks like > this: > > D /var/run/BackupPC 0775 root backuppc - > > If you create that file, you'll get the /var/run/BackupPC file when > you start up. I suggest filing a bug against the EPEL package if you > want to get it fixed there. Thanks very much for the explanation and suggestion. I've created that file, and will see what happens next time I re-boot. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Is this a bug in CentOS-7 BackupPC?
When I try to start BackupPC with "sudo systemctl restart backuppc"
on my CentOS-7 server (running kernel 3.10.0-229.14.1.el7.x86_64)
I get the following error in /var/log/BackupPC/LOG
2015-09-26 13:58:14 Reading hosts file
2015-09-26 13:58:14 unix bind() failed: No such file or directory
This message occurs in the Perl script /usr/share/BackupPC/bin/BackupPC :
my $sockFile = "/var/run/BackupPC/BackupPC.sock";
unlink($sockFile);
if ( !bind(SERVER_UNIX, sockaddr_un($sockFile)) ) {
print(LOG $bpc->timeStamp, "unix bind() failed: $!\n");
exit(1);
}
As far as I can see (I'm no guru) this is trying to open a unix socket
with the name /var/run/BackupPC/BackupPC.sock .
There is no directory /var/run/BackupPC/ on my server.
When I create this, setting backuppc.apache as owner,
and run "sudo systemctl restart backuppc"
I see in /var/log/BackupPC/LOG that BackupPC has (at long last) started
--
Timothy Murphy
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin
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Re: [CentOS] Is this a bug in CentOS-7 BackupPC?
Fabian Arrotin wrote:
>> This message occurs in the Perl script
>> /usr/share/BackupPC/bin/BackupPC :
>>
>> my $sockFile = "/var/run/BackupPC/BackupPC.sock";
>> unlink($sockFile); if ( !bind(SERVER_UNIX, sockaddr_un($sockFile))
>> ) { print(LOG $bpc->timeStamp, "unix bind() failed: $!\n");
>> exit(1); }
>>
>> As far as I can see (I'm no guru) this is trying to open a unix
>> socket with the name /var/run/BackupPC/BackupPC.sock .
>>
>> There is no directory /var/run/BackupPC/ on my server. When I
>> create this, setting backuppc.apache as owner, and run "sudo
>> systemctl restart backuppc" I see in /var/log/BackupPC/LOG that
>> BackupPC has (at long last) started
>>
>
> Seems a packaging issue ? From where is your rpm for backuppc coming ?
>From epel .
> /var/run on EL7 is in fact pointing to /run , which is tmpfs, so
> packages aren't supposed to drop something there directly, or that
> will be gone anyway next time your restart the machine.
> Workaround for those not-yet-fixed-for-systemd-packages : man
> tmpfiles.d (that will create/maintain those)
I don't really understand this.
The perl script wants to create /var/run/BackupPC/BackupPC.sock
which it seems it cannot do unless /var/run/BackupPC/ exists.
If as you say this disappears on re-booting,
I don't see how this program could work.
--
Timothy Murphy
gayleard /at/ eircom.net
School of Mathematics, Trinity College, Dublin
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Re: [CentOS] httpd userdir problem
Richard Mann wrote: > Look in /etc/httpd/conf.d/ for userdir.conf. Here is my userdir.conf - # # UserDir is disabled by default since it can confirm the presence # of a username on the system (depending on home directory # permissions). # #.#UserDir disabled # # To enable requests to /~user/ to serve the user's public_html # directory, remove the "UserDir disabled" line above, and uncomment # the following line instead: # UserDir public_html # # Control access to UserDir directories. The following is an example # for a site where these directories are restricted to read-only. # #.#AllowOverride FileInfo AuthConfig Limit Indexes AllowOverride All Require all granted Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec Require method GET POST OPTIONS - >> I'm running httpd-2.4.6-31.el7.centos.1.x86_64 >> under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). >> >> I cannot get the httpd userdir facility working; >> when I try to access localhost/Menloe I get the message >> "You don't have permission to access /Menloe on this server." -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd userdir problem
Timothy Murphy wrote: > I'm running httpd-2.4.6-31.el7.centos.1.x86_64 > under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). > > I cannot get the httpd userdir facility working; > when I try to access localhost/Menloe I get the message > "You don't have permission to access /Menloe on this server." Incidentally, httpd -l returns Compiled in modules: core.c mod_so.c http_core.c But when I add LoadModule userdir_module modules/mod_userdir.so to /etc/httpd/conf/httpd.conf and restart httpd I get the message "AH01574: module userdir_module is already loaded, skipping" I notice that under Apache 2.2 there were a dozen or more LoadModule commands in httpd.conf but they no longer appear there in Apache 2.4 . -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] httpd userdir problem
I'm running httpd-2.4.6-31.el7.centos.1.x86_64 under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). I cannot get the httpd userdir facility working; when I try to access localhost/Menloe I get the message "You don't have permission to access /Menloe on this server." I see in /var/log/httpd/error_log "Symbolic link not allowed or link target not accessible: /var/www/html/Menloe" while in /var/log/httpd/access_log I see "GET /Menloe HTTP/1.1" 403 208 In /etc/httpd/conf.d/userdir.conf I have UserDir public_html and AllowOverride All Require all granted Options MultiViews Indexes SymLinksIfOwnerMatch IncludesNoExec Require method GET POST OPTIONS The directory ~/public_html/Menloe/ is owned by me, and has permissions drwxr-xr-x. I wonder if anyone has met this problem? Or if anyone is using the apache userdir facility in CentOS 7? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] httpd userdir problem
Tony Schreiner wrote: > also if selinux is enabled, the boolean httpd_enable_homedirs should be > set I have set SELINUX=permissive >> > I'm running httpd-2.4.6-31.el7.centos.1.x86_64 >> > under CentOS-7 (kernel 3.10.0-229.14.1.el7.x86_64). >> > >> > I cannot get the httpd userdir facility working; >> > when I try to access localhost/Menloe I get the message >> > "You don't have permission to access /Menloe on this server." -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Setting up BackupPC on CentOS-7
I'd be interested in any corrections or comments on the following instructions (basically for myself): We assume that BackupPC has been installed: sudo yum install BackupPC 1. BackupPC must be run by the user backuppc. Accordingly the lines User apache Group apache in /etc/httpd/conf/httpd.conf should be changed to User backuppc Group backuppc 2. The user backuppc must be able to ssh to root (to run rsync), since only root can access all the files on the system. This is slightly complicated because backuppc has no default shell. $ su Passwd: # su -s /bin/sh backuppc sh-4.1$ cd sh-4.1$ ssh-keygen Generating public/private rsa key pair. sh-4.1$ cd .ssh sh-4.1$ cp id_rsa.pub /tmp sh-4.1$ exit # cd # ls .ssh If .ssh exists and contains id_rsa and id_rsa.pub ignore the next command # ssh-keygen Generating public/private rsa key pair. # cd .ssh # cat /tmp/id_rsa.pub >> authorized_keys # su -s /bin/sh backuppc sh-4.1$ ssh -l root helen helen is the name of my server - substitute the correct name or IP address # exit sh-4.1$ exit # 3. We must setup the graphic interface to BackupPC, since it is more or less impossible to administer BackupPC otherwise. I want to configure BackupPC from my laptop. My laptop and server are on the same network 192.168.2.0 # vi /etc/httpd/conf.d/BackupPC.conf Firstly, after the line allow from 127.0.0.1 add allow from 192.168.2.0/255.255.255.0 (giving the IP address of your network in place of 192.168.2.0). Secondly, change the line Require local to Require ip 192.168.2.0/255.255.255.0 127.0.0.1 4. Give backuppc and yourself passwords to access BackupPC # htpasswd -c /etc/BackupPC/apache.users backuppc Password: # htpasswd -c /etc/BackupPC/apache.users yourusername Password: # exit 5. Ensure that all BackupPC files are owned by backuppc.apache # chown -R backuppc.apache /etc/BackupPC /etc/httpd/conf.d/BackupPC.conf /var/lib/BackupPC 6. Restart BackupPC and apache # systemctl restart backuppc # systemctl restart httpd 7. Now see if you can access BackupPC on your server: Browse to http://localhost/backuppc If this succeeds give username backuppc and the password you chose for yourself above 8. Now try the same on your laptop: Browse to http://helen/backuppc (substituting your server's name or IP address for "helen"). Again give username backuppc and the password you chose for yourself above. 9. Returning to the server, # cd /etc/BackupPC # vi hosts I appended the line helen 0 backuppc to this file - you can choose any name here in place of helen it does not have to be the name of your server. 10. Now browse again to BackupPC, on laptop or server. Where it says "Select a host" give the name you just chose. Click on "Edit Config" and then on "Xfer" and in the RsyncShareName line add the directory or directories on your server that you want to backup, and then click on Save. (I chose /Photos, /common/tim and /var/www, but of course this is entirely up to you.) Click on "helen Home" (substituting the name you chose above), and press "Start full backup". -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] BackupPC is not easy to setup
Bowie Bailey wrote: > On 9/18/2015 8:39 AM, Timothy Murphy wrote: >> Incidentally, I've been running BackupPC on my CentOS-7 server > The GUI config editor is just an alternative to hand editing. It uses > the exact same files. > > Keep in mind that the config files are stored separately from the > backups. On my system, the backups are under /data/BackupPC and the > config files are under /etc/BackupPC. You are quite right. The info about directories to backup is in the file /etc/BackupPC/pc/helen.pl . I had been looking for a file called config. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] BackupPC is not easy to setup
Bowie Bailey wrote: > On 9/13/2015 10:58 AM, Timothy Murphy wrote: >> >> I take it then that there is no CLI method >> of setting up and running BackupPC ? > > Sure there is. All of the configuration is stored in text config > files. There is a main config file for global options and each host has > a config file in it's own directory. Yes, it was pointed out to me that there are instructions in <http://backuppc.sourceforge.net/faq/BackupPC.html> in Step-7:-Talking-to-BackupPC. I note that these instructions end by advising the user not to follow them, but to set up the GUI method. Incidentally, I've been running BackupPC on my CentOS-7 server for about a week now, and I notice that no config file is created in /var/lib/BackupPC/pc/helen, where helen is the host-name. It seems the GUI method stores the config file somewhere else. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] Periodic speed test
I run the speedtest from <https://pypi.python.org/pypi/speedtest-cli/> quite often, and find it very reliable. I'm wondering if anyone has developed a version to run the speed test at regular intervals, say every 6 hours, and record the results in a simple database or just a file? I imagine it would be a fairly easy task to modify the Python code to do this, but it would be even easier if someone has already done it! -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Periodic speed test
Fabian Arrotin wrote: >> I'm wondering if anyone has developed a version to run the speed >> test at regular intervals, say every 6 hours, and record the >> results in a simple database or just a file? > I like speedtest-cli, and use it (through crontab) with speedtest-cli > - --simple then parse the output. > - From that point you can put it everywhere you want (file, db, > zabbix-sender, etc) Thanks for your response. I'm sure that is the simplest thing to do. I hadn't noticed that /usr/bin/speedtest calls speedtest-cli to do the work. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] BackupPC is not easy to setup
kpolb...@olberg.name wrote: >>> 2. The graphical interface seems to be treated as an extra, >>> but what other way is there of accessing BackupPC? >>> Is there a CLI approach? >>> If so, where is the list of transfer requests kept? > 2. You can do all operations through CLI, all of it is mentioned in the > documentation. > http://backuppc.sourceforge.net/faq/BackupPC.html#Step-7:-Talking-to-BackupPC Thank you for your response. However, I don't believe this short section gives sufficient information to configure and run BackupPC. Basically, it just gives a way of finding out what is happening while BackupPC is running. (Also it finishes by advising you to use the GUI instead.) For example, what command would you give to tell BackupPC that you want to back up /var/www (to choose a directory at random)? > 3. As mentioned earlier, this is just the default apache config. And can > be altered through httpd.conf (though I wouldn't mess too much with it, > the defaults are normally fine). I don't think that is true. The simplest way to configure BackupPC is to run it with user backuppc, by changing "User apache" to "User backuppc" in /etc/httpd/conf/httpd.conf . -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] BackupPC is not easy to setup
I finally got BackupPC working under Centos-7.1 after several hours of pain. I had been running it for several years under CentOS-6, and probably CentOS-5, but there seem to me to have been several new issues that arise with CentOS-7. In my experience, the official documentation on this, <http://backuppc.sourceforge.net/faq/BackupPC.html>, is more or less useless unless you have a very long time to spend. It suffers from the usual Linux disease of having inordinately long explanations of everything with no examples of the actual commands a real person has to give. The explanation in <https://wiki.centos.org/HowTos/BackupPC> (which I only found later) is much better, though it starts with the warning "This page is no longer maintained, having been abandoned on 2009-09-17". I thought I'd write a 1-page note to myself of the steps I took, in preparation for CentOS-8... I have a couple of questions that this raises. 1. Why exactly does backuppc want to ssh to root? Is this just a way of running BackupPC as root? 2. The graphical interface seems to be treated as an extra, but what other way is there of accessing BackupPC? Is there a CLI approach? If so, where is the list of transfer requests kept? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] BackupPC is not easy to setup
Timothy Murphy wrote: > I thought I'd write a 1-page note to myself of the steps I took, > in preparation for CentOS-8... > I have a couple of questions that this raises. > > 1. Why exactly does backuppc want to ssh to root? > Is this just a way of running BackupPC as root? > > 2. The graphical interface seems to be treated as an extra, > but what other way is there of accessing BackupPC? > Is there a CLI approach? > If so, where is the list of transfer requests kept? Another small query. I see that BackupPC starts 6 copies of httpd running, but so far only 2 have ever been used. Can this number (6) be changed? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] BackupPC is not easy to setup
Ulf Volmer wrote: Thanks for your response, which clarifies matters for me. >> I have a couple of questions that this raises. >> 1. Why exactly does backuppc want to ssh to root? > To enable access to all of the files on the client. >> Is this just a way of running BackupPC as root? > Why do you want this? It's not required to run backuppc as user root. I don't want (or not want) to do this. I was asking the reason for ssh-ing from backuppc to root. I don't recall any other application taking this route ? >> 2. The graphical interface seems to be treated as an extra, >> but what other way is there of accessing BackupPC? >> Is there a CLI approach? > There are some CLI applications available, BackupPC_tarCreate for > example to restore file from the command line. I take it then that there is no CLI method of setting up and running BackupPC ? Incidentally, I don't recall ever changing the user and group under which BackupPC is to run when setting up BackupPC under CentOS-6. Maybe this was done automatically during the CentOS installation of this program? (I certainly never used suexec explicitly.) -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] BackupPC problem - wrong user
anax wrote: > On 2015-09-08 12:18, Timothy Murphy wrote: >> I recently moved BackupPC from CentOS-6 to CentOS-7. >> But when I browse to localhost/BackupPC I'm told >>Error: Wrong user: my userid is 48[apache], instead of 984(backuppc) >> >> As far as I can tell, the BackupPC settings are exactly the same >> as they were before the move. >> >> It seems htttpd is running the program as user apache >> rather than backuppc, as required. >> Is there a simple setting in /etc/httpd/ that will tell httpd >> to run as a different user? > Hi Tim > if you try with suexec? Thanks for the suggestion. I had actually seen suexec mentioned, but on looking for a simple example of suexec in action I could only find ones referring to CGI scripts. I found the official document <http://httpd.apache.org/docs/2.2/suexec.html> extraordinarily complicated, and it was not clear if this program can actually be applied to BackupPC, since it refers throughout to CGI. I guess I'll start by changing User apache Group apache in /etc/httpd/conf/httpd.conf and then later see if I can make sense of suexec . -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
[CentOS] BackupPC problem - wrong user
I recently moved BackupPC from CentOS-6 to CentOS-7. But when I browse to localhost/BackupPC I'm told Error: Wrong user: my userid is 48[apache], instead of 984(backuppc) As far as I can tell, the BackupPC settings are exactly the same as they were before the move. It seems htttpd is running the program as user apache rather than backuppc, as required. Is there a simple setting in /etc/httpd/ that will tell httpd to run as a different user? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] why I use chrome on CentOS
isdtor wrote: >> I don't like Chrome but I can understand your need to use it. > > Chrome, and Chromium, too, spies on users' web habits behind their back. A bit OT, but chrome is the only way to use chromecast under Fedora or Windows, as far as I know. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org https://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Fedora change that will probably affect RHEL
Chris Murphy wrote: No, I am making the assumption that the vast majority of CentOS installs are racked up in datacenters, VPS hosts, etc. Is that true, I wonder? For some reason Fedora and CentOS seem reluctant to find out anything about their users (or what their users want). This is confusing. I think it's overwhelmingly, abundantly clear that Fedora care about their users and are listening. CentOS cares with a hard and fast upper limit which is binary compatibility with RHEL. So if you want to change CentOS behavior you'd have to buy into RHEL and convince Red Hat, and then it'd trickle down to CentOS. You (and others) are misunderstanding my off-the-cuff remark. It was purely an observation about the lack of statistics. I rarely if ever see a statement of the kind Among Fedora users 37% use KDE and 42% Gnome. Or (after the remark I was responding to) 83% of CentOS machines are in datacenters, and 7% are home-servers. (Or x% of Fedora users have turned SELinux to permissive.) I'm not saying that Fedora or CentOS should work on democratic principles. I welcome Johnny Hughes unambiguous statement that CentOS follows RHEL. This saves a lot of time arguing about things that cannot be changed. But I hold the (old-fashioned?) view that before expressing an opinion one should get the facts. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Fedora change that will probably affect RHEL
Warren Young wrote: No, I am making the assumption that the vast majority of CentOS installs are racked up in datacenters, VPS hosts, etc. Is that true, I wonder? For some reason Fedora and CentOS seem reluctant to find out anything about their users (or what their users want). Is anything known about the ratio of RHEL to CentOS machines? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] USB stick query
Chris Murphy wrote: On Sun, Jul 5, 2015 at 4:43 PM, Timothy Murphy gayle...@eircom.net wrote: Gordon Messmer wrote: On 07/03/2015 03:43 AM, Timothy Murphy wrote: I've tried this again, and it does not seem to work. Have you actually tried it? I don't have a CentOS system here that I can reboot readily. And it occurs to me that if I did, I didn't ask if your system boots via BIOS or UEFI. Thanks for your response. It boots via BIOS, and in fact boots into CentOS-7/KDE on a USB stick (that is how I installed CentOS-7), and into Fedora-21/KDE on a stick. But it doesn't boot back into the CentOS-7 system that is normally running if I say sudo grub2-install /dev/sdc (the USB stick is sdc). It just comes up with the repeated -, which I take to mean it has found the boot-loader on the USB stick, but has not found the kernel on /dev/sda6. I have to confess that on using another USB stick, re-formating it under Windows-7, creating partitions with fdisk, and running sudo grub2-install /dev/sdc, the USB stick did boot my CentOS-7 machine into its usual system. I checked the first 4 x 512 bytes on the two sticks, and they did differ in the first 512 bytes, but I haven't analyzed the difference. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] USB stick query
Gordon Messmer wrote: On 07/03/2015 03:43 AM, Timothy Murphy wrote: I've tried this again, and it does not seem to work. Have you actually tried it? I don't have a CentOS system here that I can reboot readily. And it occurs to me that if I did, I didn't ask if your system boots via BIOS or UEFI. Thanks for your response. It boots via BIOS, and in fact boots into CentOS-7/KDE on a USB stick (that is how I installed CentOS-7), and into Fedora-21/KDE on a stick. But it doesn't boot back into the CentOS-7 system that is normally running if I say sudo grub2-install /dev/sdc (the USB stick is sdc). It just comes up with the repeated -, which I take to mean it has found the boot-loader on the USB stick, but has not found the kernel on /dev/sda6. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] dual-booting - Re: installing Cents os server 7.0
Chris Murphy wrote: Supporting dual boot means ability to boot both installed OS's upon completion of installing the second. This doesn't happen when the first OS is Linux using LVM, or Windows, or OS X. In that case, wouldn't it be more precise to say: CentOS-7 doesn't support dual boot if you are using LVM? It seems to me to work reasonably well with ext4. Does it work with LVM if you have a separate ext4 /boot partition? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] USB stick query
Gordon Messmer wrote: On 07/01/2015 06:02 AM, Timothy Murphy wrote: I also tried sudo grub2-install /dev/sdb but for some reason this did not do the trick. That should place a boot loader on sdb that will boot the system. What behavior did you observe when you tried to boot from that USB drive? I've tried this again, and it does not seem to work. Have you actually tried it? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] USB stick query
I have a working CentOS-7 machine. I want to install grub2 on a USB stick (without altering my present system in any way) so that I can boot the present system from the USB stick. Could some kind (and expert) soul explain precisely what to do. If it were possible to boot other systems on the computer as well that would be an added bonus. I did google for this, but all the sites I saw wanted to do more than I am asking. I also tried sudo grub2-install /dev/sdb but for some reason this did not do the trick. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] USB stick query
Gordon Messmer wrote: I also tried sudo grub2-install /dev/sdb but for some reason this did not do the trick. That should place a boot loader on sdb that will boot the system. What behavior did you observe when you tried to boot from that USB drive? The dreaded recurrent -. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] /boot on a separate partition?
Do most people today have /boot on a separate partition, or do they (you) have it on the / partition ? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT Advantage of running DNS server?
What is the advantage, if any, of running one's own DNS server? Surely the link between domain name and IP address must already have been established? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Two partitions with samd UUID??
I seem to have partitions on two different disks with the same UUID: [tim@helen ~]$ sudo blkid /dev/sda2 /dev/sda2: LABEL=/boot1 UUID=5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03 TYPE=ext3 [tim@helen ~]$ sudo blkid /dev/sdb2 /dev/sdb2: LABEL=/boot1 UUID=5bbc8e95-6108-41f5-bc0e-5b5f8df5ce03 TYPE=ext3 This is causing some confusion, as these are boot partitions, and grub2 seems to be choosing the wrong one. I wonder how this occurred; I thought different partitions on different disks necessarily had different UUIDs? Maybe I used dd at some point. Would this keep the same UUID? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Spamassassin: last step
I'm running CentOS-7 on my home server, and have setup postfix + dovecot + spamassassin. Everything seems to be working fine, except that while spam is being marked as ***Spam***, it is ending up in ~/Maildir/cur/ . I'd like to divert it to ~/Maildir/.Spam/ (where I can examine it with sa-learn). What is the simplest way to do this? -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dubli ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] What has happened to the CentOS logo?
Mike - st257 wrote: On Wed, Jun 3, 2015 at 6:11 AM, Timothy Murphy gayle...@eircom.net wrote: Has the CentOS logo disappeared from CentOS-7? You are referring to Plymouth splash screen while booting. I thought the logo in CentOS-6 was very pleasant. Probably. The fact remains that booting was attractive, and now it isn't. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What has happened to the CentOS logo?
Has the CentOS logo disappeared from CentOS-7? I thought the logo in CentOS-6 was very pleasant. Also I liked the way in which one increasing circle inside another showed how the boot was progressing. The dots going round and round in Microsoft fashion in CentOS-7 is a retrograde step, I think. One always has the fear it might continue forever. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Using Mariadb databases from old server
Richard wrote: The approach you can/need to take depends a bit on the type of db table you have. If it's a MyISAM type you can (generally) simply move the various db files from one machine to another. See: https://dev.mysql.com/doc/refman/5.0/en/copying-databases.html for some specific notes. I always move the whole directory. If they are InnoDB tables, see the notes at: https://dev.mysql.com/doc/refman/5.6/en/innodb-migration.html for details. Look at: http://serverfault.com/questions/487159/what-is-the-ibdata1-file-in-my-var-lib-mysql-directory for details on what's in the ibdata1 file. You need to have mysql/mariadb shut down when you move the files. Thanks very much for your advice. Actually I had already taken a rather longer path: I installed a MySQL server on my Fedora laptop, and transferred the directory /var/lib/mysql from the dead computer. This ran perfectly, so I could export the table in question, and install it on my server. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Using Mariadb databases from old server
Todor Petkov wrote: I'm running CentOS-7, but I left some MySQL databases on my old CentOS-6.5 partition which I'd like to retrieve. I assume they are contained in the file /var/lib/mysql/ibdata1 ? Could I just copy this file to /var/lib/mysql in CentOS-7? Or is there some way Mariadb or phpMyAdmin can import mysql databases from a server that is no longer running? The C6 partition is part of the new server, so you are able to mount it and copy files from it, is this correct? Have you done something with the MariaDB or it's still clean installation? I did add something to Mariadb on the new CentOS-7 system, but I don't mind deleting it and starting again. I can mount the partition with the old mysql files on it. Could I just copy the contents of /mnt/var/lib/mysql to the new system? There are files with the same name, eg ibdata1, on both systems. Could I have an ibdata2 ? Any suggestions gratefully received. -- Timothy Murphy gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
