Discuss October 2014

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199 participants
220 discussions

Testing packages for Xen, Xen Kernel, and centos-release-xen
by Johnny Hughes 10 Oct '14

10 Oct '14

For those of you who use xen4centos, but are not on the centos-virt mail list (shame on you if you do that :D) .. http://lists.centos.org/pipermail/centos-virt/2014-October/004132.html If you can test the auto update functionality of the kernel as outlined in that post and report the results (hopefully to the virt mail list :D), it would be greatly appreciated. Thanks, Johnny Hughes

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Fwd: CentOS list troubles
by Les Mikesell 10 Oct '14

10 Oct '14

Forwarded on Mark's behalf... ---------- Forwarded message ---------- From: <m.roth(a)5-cent.us> Date: Thu, Oct 9, 2014 at 3:04 PM Subject: CentOS list troubles To: Les Mikesell <lesmikesell(a)gmail.com> Hi, Les, Somewhere between late afternoon yesterday, and this morning, something hit me: regardless of whether I post a new topic, or reply, I get *nothing*: not a post, nor a bounce. It seems to just be going to /dev/null. I've tried emailing list-owner, but I have no idea if it ever got there. Would you mind posting this? For the list-owner, please figure out what happened. Thanks in advance. mark

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Re: [CentOS] CentOS 7 docs, tutorials, etc...
by James B. Byrne 10 Oct '14

10 Oct '14

On Wed, October 8, 2014 12:50, Valeri Galtsev wrote: > > > I would say, CentOS 6 is the best of Linuxes suitable for server (IMHO). > However, I for one decided to move my servers away from Linux (as from > "Unix-like" Linux gradually becomes "Windows-like" during last 5 years or > so). Since some time ago I do not upgrade Linux systems on servers I > maintain. Instead, when the time comes, I just migrate server from Linux > to FreeBSD, which is much more suitable platform for server than Linux. > Version 7 of RedHat Enterprise or CentOS is much worse than version 6 to > build server on. Again, this is just my humble opinion. If I absolutely > have to build server on today's latest Linux, I will choose Debian, which > at least doesn't have systemd yet. But it will have it in next release... > > Again, this is just $0.02 worth of my own opinion, definitely not a > consensus (and likely not even a majority opinion) on this list. > > Valeri > Do you run bhyve virtualisation on any of your migrated FreeBSD hosts? -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Re: [CentOS] Systemd Adding Its Own Console To Linux Systems
by James B. Byrne 09 Oct '14

09 Oct '14

On Wed, October 8, 2014 13:36, Les Mikesell wrote: > On Wed, Oct 8, 2014 at 12:22 PM, Robert Arkiletian <robark(a)gmail.com> wrote: >> >> Just a heads up to those who haven't seen this yet. The main author of >> systemd publicly wrote about being basically persecuted. >> >> https://plus.google.com/u/0/+LennartPoetteringTheOneAndOnly/posts/J2TZrTvu7… > > But oddly, he didn't even mention that there would be a real simple > solution - just add backwards-compatible improvements instead of > actively wrecking the interfaces everyone else had depended on for > decades. > And see this: http://www.zdnet.com/lennart-poetterings-linus-torvalds-rant-7000034384/ -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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Re: [CentOS] Systemd Adding Its Own Console To Linux Systems
by James B. Byrne 09 Oct '14

09 Oct '14

On Wed, October 8, 2014 14:49, Les Mikesell wrote: > On Wed, Oct 8, 2014 at 1:33 PM, Digimer <lists(a)alteeve.ca> wrote: >> >> On Wed, Oct 8, 2014 at 1:22 PM, Digimer <lists(a)alteeve.ca> wrote: >>>>> >>>>> >>>> Airbags, ABS, Traction Control, ACE compatibility, stronger survival >>>> space, >>>> better fuel economy, more comfortable... >>> >>> >>> I think I've forgotten what user interfaces these break. Did they >>> take away the steering wheel to add them? >> >> >> You cropped out the second half of my analogy, which explained why I thought >> the analogy applied. > > Umm, no. They are pretty much backwards compatible. Otherwise you'd > have to go through new training and testing to be certified as a > driver when you buy a new car. And car vendors know better than to do > that to their customers. > Car vendors might behave differently however. Particularly if they obtained revenue from the necessary retraining and profited from the licensing procedures. -- *** E-Mail is NOT a SECURE channel *** James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3

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vmstat and loadavg disagree about system load
by Mingfei Hua 09 Oct '14

09 Oct '14

1 4 499492 150392 4496 4763380 0 0 192 552 1227 1094 2 0 75 24 0 0 5 499492 150656 4500 4763528 0 0 0 160 465 263 1 0 68 30 0 0 5 499492 150468 4500 4763532 0 0 0 0 177 93 1 0 69 31 0 1 5 499492 151020 4500 4763540 0 0 0 0 160 132 0 0 69 31 0 1 5 499492 151268 4500 4763540 0 0 0 0 304 143 1 0 69 30 0 0 5 499492 151368 4500 4763540 0 0 0 344 369 192 0 0 69 31 0 0 1 499492 145020 4512 4771032 0 0 6260 1428 2013 2613 4 1 79 17 0 2 0 499492 140432 4512 4769396 0 0 31872 72 2393 2796 8 1 87 3 0 1 0 499500 137332 4512 4769432 0 8 25984 80 2052 2012 8 1 90 1 0 1 0 499508 132992 4512 4772592 0 8 24960 384 2325 2344 8 1 90 1 0 3 0 499520 135720 4400 4768792 0 12 24840 252 2491 2345 9 1 89 1 0 0 2 499520 210740 4404 4693096 0 0 15904 384 1798 1513 6 1 90 4 0 1 2 499520 210856 4404 4693636 0 0 0 0 154 119 0 0 87 12 0 0 2 499520 211328 4404 4693832 0 0 0 0 128 119 0 0 87 13 0 0 2 499520 212080 4404 4693832 0 0 0 0 128 144 0 0 87 12 0 0 2 499520 212700 4404 4693836 0 0 0 0 115 135 0 0 87 13 0 0 2 499520 213196 4404 4693836 0 0 0 336 88 102 0 0 87 12 0 2 0 499520 202552 4416 4704504 0 0 7984 17852 2036 1828 6 1 87 7 0 2 0 499520 172800 4416 4733208 0 0 25744 128 2165 2094 9 1 89 2 0 2 0 499520 153872 4416 4754468 0 0 18816 392 2000 1996 7 0 88 4 0 3 0 499520 169620 4416 4738300 0 0 27520 480 2346 2248 9 1 90 1 0 2 0 499520 140260 4416 4765328 0 0 24584 224 2247 2231 9 1 90 1 0 0 2 499520 179204 4416 4725748 0 0 17164 3564 1701 1619 5 1 87 8 0 0 2 499520 179948 4416 4725488 0 0 0 0 209 131 1 0 87 13 0 0 2 499520 180072 4416 4725492 0 0 0 0 111 117 0 0 87 12 0 0 2 499520 180436 4416 4725492 0 0 0 0 71 81 0 0 87 13 0 0 2 499520 180560 4416 4725492 0 0 0 0 182 110 0 0 87 13 0 0 1 499520 180180 4416 4725492 0 0 0 344 315 179 0 0 87 12 0 2 0 499520 182196 4428 4731300 0 0 2944 1108 1828 1935 6 0 86 8 0 1 0 499520 150180 4428 4757292 0 0 23936 88 2038 1905 7 1 88 4 0 2 0 499520 157264 4428 4751916 0 0 23568 176 2324 2139 8 1 87 5 0 1 2 499520 135936 4428 4770852 0 0 27144 120 2428 2449 9 1 85 6 0 2 1 499520 148336 4428 4761668 0 0 19072 192 2281 2420 8 1 83 8 0 0 2 499520 156408 4432 4749652 0 0 12416 436 1303 1235 3 0 86 11 0 ^C [root@idm-amst-db-12 ~]# ^C [root@idm-amst-db-12 ~]# ^C [root@idm-amst-db-12 ~]# uptime 01:47:47 up 26 days, 4:21, 1 user, load average: 26.85, 22.12, 19.38 [root@idm-amst-db-12 ~]# uptime 01:47:58 up 26 days, 4:21, 1 user, load average: 24.38, 21.74, 19.29 [root@idm-amst-db-12 ~]# cat /proc/loadavg 25.40 22.05 19.45 1/555 13911 Sincerely, Mingfei Hua

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Renaming NIC name in CentOS 7
by Richer, Mark (CIV) 09 Oct '14

09 Oct '14

All, I am trying to understand better how you give an interface a more descriptive name and get it all working without a reboot, if possible. We have 1G and 10G interfaces, and I’m trying to use names like 1G-internal, 1G-external, 10G-private, etc. When I boot up, it’s all fine, but if I add one I’m not sure if there is a way to avoid the reboot? For example, I added the 10G interface names this week. Specifically, is there a way to change the network interface name you see in ifconfig and nmcli connection without rebooting CentOS 7? I changed the name in network-scripts. I tried to restart NetworkManager. I brought down the interface and tried to rename the file and bring it up again, but it still retains the previous run-time setting associated with the same UUID in the file. Also I find that on all but one of the server on which I did this, I can restart NetworkManager, but network.service is failing to restart. Do I want both active? And if yes, is this indicative of a problem related to changing the interfaces that goes away (only) by rebooting? For some reason, after doing this on several systems, on only one I can restart network.service, but it also still shows the old interface name. thanks, Mark MARK H RICHER, MS CS NPS-NCR Digital Forensics Lab IT Manager Computer Science Department Naval Postgraduate School - National Capital Region (NCR) 900 N Glebe Rd, Rm 5-182, Arlington, VA 22203 571.858.3254 (o) 571.303.9498 (m) mhricher(a)nps.edu<mailto:mhricher@nps.edu>

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removing menus
by Jerry Geis 09 Oct '14

09 Oct '14

I am attempting to get no menus on the desktop... for CentOS 7. I did: rpm -e --nodeps gnome-shell-extension-apps-menu rpm -e --nodeps gnome-shell-extension-places-menu But now I get an "Activities" menu at the top... instead. Any idea how to remove that package... I cant find what it is called. I had to use --nodeps above as gnome-classic (I think) needs to be installed or nothing works. Thanks, Jerry

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Bash still vulnerable
by Lars Hecking 09 Oct '14

09 Oct '14

According to the vulnerability test script from shellshocker.net, the latest bash versions on CentOS5 and CentOS6, 3.2-33.el5_11.4 and 4.1.2-15.el6_5.2, resp., are still vulnerable to CVE-2014-6277. In fact, on CentOS6, abrtd will send you a nice report about it. Does anyone know if upstream is working on a fix? [root@host ~]# bash ~/shellshock_test.sh CVE-2014-6271 (original shellshock): not vulnerable /root/shellshock_test.sh: line 16: 17229 Segmentation fault (core dumped) bash -c "f() { x() { _;}; x() { _;} <<a; }" 2> /dev/null CVE-2014-6277 (segfault): VULNERABLE CVE-2014-6278 (Florian's patch): not vulnerable CVE-2014-7169 (taviso bug): not vulnerable CVE-2014-7186 (redir_stack bug): not vulnerable CVE-2014-7187 (nested loops off by one): not vulnerable CVE-2014-//// (exploit 3 on http://shellshocker.net/): not vulnerable [root@host ~]#

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Problem with WRT54GL router
by Timothy Murphy 09 Oct '14

09 Oct '14

I have a curious problem with an old WRT54GL router, which I use as a WiFi access point on my LAN: Internet->ADSL modem->CentOS-7 computer->WRT54GL router The router has always had a slight problem of losing connection every so often - it used to be every couple of days, but recently it has become much more often. My cure was always to disconnect the power from the router for 10 seconds or so, and then re-connect it. Recently I discovered that running the following script on the CentOS computer seems to solve the problem (for a while) sudo systemctl restart dhcpd sudo systemctl restart network sudo systemctl restart shorewall (I suspect the first, dhcpd, is irrelevant.) Incidentally, I am able to ping laptops on the LAN (but not the other way round) even when the router is in its "bad" state. I wonder if anyone has had a similar experience, and can offer advice? I don't like to examine the internals of the router, in case it stops working altogether. I'm planning on getting another router (N protocol), so it is not a very serious matter - I'm just puzzled by it. - Timothy Murphy e-mail: gayleard /at/ eircom.net School of Mathematics, Trinity College, Dublin 2, Ireland

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Discuss October 2014