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CentOS 6 problem connecting to software source
by Jerry Geis 28 Nov '16

28 Nov '16

Hi All, I have a number of boxes that are popping up a message about "problem connecting to software source". Port 80 has been blocked now where it wasnt before. I have the yum update service disabled, so what is this error message coming from and how do I stop it. Thanks, Jerry

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CentOS 6.4 tcp_fatretrans_alert causes panic
by Zhang Qiang 28 Nov '16

28 Nov '16

Hi all, Our kernel is 2.6.32-358.14.1.x86_64, recently dozens of them panicked, since it's been OK for a long time and the problem emerged all of a sudden, I'm not sure if an upgrade caused this problem. Here's what I got from backtracing: PID: 8136 TASK: ffff8803341aead0 CPU: 2 COMMAND: "" #0 [ffff880028283610] panic at ffffffff815286b8 #1 [ffff880028283690] oops_end at ffffffff8152c8a2 #2 [ffff8800282836c0] no_context at ffffffff81046c1b #3 [ffff880028283710] __bad_area_nosemaphore at ffffffff81046ea5 #4 [ffff880028283760] bad_area_nosemaphore at ffffffff81046f73 #5 [ffff880028283770] __do_page_fault at ffffffff810476d1 #6 [ffff880028283890] do_page_fault at ffffffff8152e7be #7 [ffff8800282838c0] page_fault at ffffffff8152bb75 [exception RIP: tcp_fastretrans_alert+2754] RIP: ffffffff814aed62 RSP: ffff880028283970 RFLAGS: 00010246 RAX: 0000000000000002 RBX: ffff88003d22c940 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 RBP: ffff8800282839b0 R8: 000000018033a9ac R9: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000d03 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000 #8 [ffff8800282839b8] tcp_ack at ffffffff814afb2c #9 [ffff880028283a88] tcp_rcv_state_process at ffffffff814b1128 #10 [ffff880028283b18] tcp_v4_do_rcv at ffffffff814b94f0 #11 [ffff880028283bb8] tcp_v4_rcv at ffffffff814baf9a #12 [ffff880028283c48] ip_local_deliver_finish at ffffffff8149648d #13 [ffff880028283c78] ip_local_deliver at ffffffff81496718 #14 [ffff880028283ca8] ip_rcv_finish at ffffffff81495bbd #15 [ffff880028283ce8] ip_rcv at ffffffff81496155 #16 [ffff880028283d28] __netif_receive_skb at ffffffff8145db5b #17 [ffff880028283d88] netif_receive_skb at ffffffff814621b8 #18 [ffff880028283dc8] virtnet_poll at ffffffffa0130565 [virtio_net] #19 [ffff880028283e68] net_rx_action at ffffffff81463193 #20 [ffff880028283ec8] __do_softirq at ffffffff81078c71 #21 [ffff880028283f38] call_softirq at ffffffff8100c1cc #22 [ffff880028283f50] do_softirq at ffffffff8100de05 #23 [ffff880028283f70] irq_exit at ffffffff81078a55 #24 [ffff880028283f80] do_IRQ at ffffffff81532365 --- <IRQ stack> --- #25 [ffff88001e851f58] ret_from_intr at ffffffff8100b9d3 RIP: 00007fa080e1a538 RSP: 00007fa0781ec960 RFLAGS: 00000206 RAX: 0000000000000001 RBX: 00007fa0781ec9a0 RCX: 000000000001ef8c RDX: 0000000000001000 RSI: 0000000000000006 RDI: 00007fa07c093df8 RBP: ffffffff8100b9ce R8: 0000000000000006 R9: 0000000004000001 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa0710a18f0 R14: 0000000000000120 R15: 0000000000001000 ORIG_RAX: ffffffffffffff8e CS: 0033 SS: 002b disassemble tcp_fasteretrans_alert+2754 gives: 0xffffffff814aed62 <tcp_fastretrans_alert+2754>: sub 0x58(%rdi),%r8d I know this kernel is a bit old, but since these kernels are in production environment, I can't just upgrade them all to test if it's the problem of the old version. So I need some advice on how to debug or a bug report. Thanks.

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gnucash 2.4.15 - both help and tutor drop out when attempting to read
by geo.inbox.ignored 28 Nov '16

28 Nov '16

greetings all. GnuCash 2.4.15 - both help and tutor drop out when attempting to read within a few seconds of opening. submitted bug report. system: centos 6.8 current toshiba satellite l455d-s5976 w/ amd sempron si-42, 2GB ddr2 aoy, have not search centos or web for problem. thought i might try quick and easy first. has anyone seen such problem? would installing latest version possibly be best answer? tia. -- The important thing is not to stop questioning. - Albert Einstein CentOS GNU/Linux 6.8 KDE 4.3.4 peace out. tc,hago. g . =+= Tired of having your microsoft os hacked? Change to Linux os, used by microsoft hackers. =+= If Bill Gates got a dime for every time Windows crashes... ...oh, wait. He does. THAT explains it! =+= in a world with out fences, who needs gates. =+=

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Outliner plugin for editor
by H 27 Nov '16

27 Nov '16

I am currently running not only Geany (on CentOS and on Windows) but also Gedit on CentOS, much of the use is as markdown-editors being a recent convert to this language. I would, however, also like to be able to essentially use it as an outliner - remember the old DOS outliners that were great for creating document outlines? It would have been perfect had I been able to fold and unfold sections of whatever markdown document I am working on in Geany or Gedit but sadly that does not seem possible... Nor have I been able to find a plugin for Gedit or Geany that would add that functionality. I do not want to have to use LibreOffice or something similar, it's too heavy and cumbersome. Hoping that someone can steer me to a solution!Thank you.

2 3

Off-Topic: Travel Router and Firewall
by H 26 Nov '16

26 Nov '16

This is off-topic and the only connection with CentOS is that the laptop will be running CentOS... I am looking for a travel router/firewall for a number of reasons: - Protect against outside attacks when outside the office/home not relying on whatever protection the laptop/tablet/phone offers. - Allow for fast transfer for data between devices without being limited by the bandwidth of the hotel etc., even without being connected to the internet. - Allow for multiple devices even when the hotel etc. only allows one device to be registered. The ideal device should: - Be small, ideally be able to be charged via a USB port. - Use open-source software that the user can update. - Allow the user to log on the device and set up the connection with the hotel etc. which often requires a userid and password to be entered on a browser page. - Allow using either a RJ-45 wired or wireless connection to the outside net. - Have at least two RJ-45 ports to connect a laptop avoiding WiFi. - Allow for VPN tunneling. If anyone has suggestions, they would be greatly appreciated!

10 15

Thruk reports /var/tmp/live.sock: No such file or directory inspite of the file being present
by Kaushal Shriyan 26 Nov '16

26 Nov '16

Hi, I am running thruk (version is thruk-2.12-1.x86_64) which is a web interface for nagios 4.2.3 and running httpd-2.4.6-40.el7.centos.4.x86_64 on CentOS Linux release 7.2.1511 (Core) While accessing thruk web interface http://thruk.mydomain.com/thruk/cgi-bin/ status.cgi?host=all&_=1480078344275 I am seeing this issue in *thruk.log prod: ERROR: failed to open socket /var/tmp/live.sock: No such file or directory* As you can see the file /var/tmp/live.sock is present as per the below ls -l command output, I am not sure about the above error of No such file or directory #ls -l /var/tmp/live.sock srw-rw---- 1 nagios nagios 0 Nov 25 18:12 /var/tmp/live.sock I can share the /etc/httpd/conf.d/thruk.conf. selinux is disabled. thruk :- https://www.thruk.org/ http://sprunge.us/iPIU is the output of *strace -p pidofthruk* apache 4248 0.0 0.3 106020 31016 ? S 19:25 0:00 /usr/bin/perl /usr/share/thruk/script/thruk_fastcgi.pl Please let me know if you need any additional information. Regards, Kaushal

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linux-3.10.0-514.el7.tar.xz - process of creation
by Staazul 25 Nov '16

25 Nov '16

I try to create own patch for kernel, and I look in process of generation binary rpm file. As I can see, for creation binary package, rpmbuild doesn't uses any set of patches and doesn't uses file of original (vanilla) version of kernel. Instead it, I see some xz archive of compressed tree of kernel probably with all changes (linux-3.10.0-514.el7.tar.xz). How and where I can find process of creation of this archive and to see separately all set of patches? I want to remove some changes and add own. Many thanks to all, who have such info and can give link on process or link on documentations of process of creation of this archive. best regards, Andrei upwork.link

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Pacemaker bugs?
by Andreas Haumer 25 Nov '16

25 Nov '16

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi! I think I stumbled on at least two bugs in the CentOS 7.2 pacemaker package, though I'm not quite sure if or where to report it. I'm using the following package to set up a 2-node active/passive cluster: [root@clnode1 ~]# rpm -q pacemaker pacemaker-1.1.13-10.el7_2.4.x86_64 The installation is up-to-date on both nodes as of the current PIT. I have currently the following cluster resources running: [root@clnode2 ~]# pcs status Cluster name: rucluster1 Last updated: Fri Nov 25 11:26:51 2016 Last change: Fri Nov 25 10:51:32 2016 by root via cibadmin on clnode1 Stack: corosync Current DC: clnode2 (version 1.1.13-10.el7_2.4-44eb2dd) - partition with quorum 2 nodes and 12 resources configured Online: [ clnode1 clnode2 ] Full list of resources: p_ip_cluster (ocf::heartbeat:IPaddr2): Started clnode2 Master/Slave Set: ms_drbd_r0 [p_drbd_r0] Masters: [ clnode2 ] Slaves: [ clnode1 ] p_fs_drbd1 (ocf::heartbeat:Filesystem): Started clnode2 p_apache (ocf::heartbeat:apache): Started clnode2 p_dhcpd (ocf::heartbeat:dhcpd): Started clnode2 p_named (ocf::heartbeat:named): Started clnode2 p_slapd (ocf::heartbeat:slapd): Started clnode2 p_postgres (ocf::heartbeat:pgsql): Started clnode2 p_nmb (systemd:nmb): Started clnode2 p_smb (systemd:smb): Started clnode2 p_winbind (systemd:winbind): Started clnode2 PCSD Status: clnode1: Online clnode2: Online Daemon Status: corosync: active/enabled pacemaker: active/enabled pcsd: active/enabled The first bug is rather serious, though a workaround exists! The cluster works fine, but as soon as I add a cluster resource of class "service", the cluster manager software runs havoc on node failover. In that situation, the lrmd process hangs in an infinite loop (neither strace nor ltrace show any outout so it seems to be an internal loop without any system or library call) and almost any call to the cluster manager software (crmsh or pcs) runs into a timeout. It's quite hard to recover the whole cluster from this situation. When I replace the resource class "service" with resource class "systemd", everything seems to work just fine. I found a rather old, already closed bug for Fedora which looks similar: <https://bugzilla.redhat.com/show_bug.cgi?id=1117151> Another bug seems to be rather minor: I see following assertions in the corosync logs: Nov 25 11:13:56 [3206] clnode1 crmd: error: crm_abort: pcmkRegisterNode: Triggered assert at xml.c:594 : node->type == XML_ELEMENT_NODE They seem to be related with the drbd resource, but do not cause any functional problem it seems. For this particular problem I found the following patch: <https://github.com/ClusterLabs/pacemaker/commit/68c7506aa84c69e5f425ef5f302…> Are these already known bugs? (I searched the CentOS bugzilla site but couldn't find any ticket describing these bugs) Any advise on if or where I should report it? Thanks! - - andreas - -- Andreas Haumer | mailto:andreas@xss.co.at *x Software + Systeme | http://www.xss.co.at/ Karmarschgasse 51/2/20 | Tel: +43-1-6060114-0 A-1100 Vienna, Austria | Fax: +43-1-6060114-71 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iD8DBQFYOBLBxJmyeGcXPhERAmSKAJ9NNI+D2OaBR1I8jum6AywMxQxsmACfU71C HV+6j+4YRy71BkjHfipPJFg= =Okfp -----END PGP SIGNATURE-----

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Re: [CentOS] Off-Topic: Travel Router and Firewall
by James B. Byrne 25 Nov '16

25 Nov '16

On Thu, November 24, 2016 12:28, H wrote: > You are right, I had forgotten about needing two WiFi adapters... If > there is an Ethernet jack in the hotel room I would go with that but > that is, of course, far from assured and two WiFi nets would be > needed. I have found Ethernet RJ45 ports in hotel rooms with wi-fi frequently no longer active and simply relics of an earlier Internet service. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail 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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Permanent job in Tokyo, Japan
by James Tobin 25 Nov '16

25 Nov '16

Hello, I’m working with an employer that is looking to hire someone to fulfil a permanent DevOps-type position at their office in Tokyo. Japanese language is not required; only English. Consequently I had hoped that some members of this mailing list may like to discuss further; off-list. I can be reached using "JamesBTobin (at) Gmail (dot) Com". Kind regards, James

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