Discuss November 2018

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96 participants
69 discussions

Yum and proxy settings
by Vic Chester 08 Nov '18

08 Nov '18

I have configured yum to use a proxy via the yum.conf file by adding: proxy=http://myproxy.com:8080/ What I noticed when running yum check-up date is that some requests are going through the proxy while the system seems to be trying to resolve the domains of other hosts in the repo and trying to establish direct connections to them instead of going through the proxy. Can anyone explain this behavior?

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CentOS Dojo at FOSDEM - Registration now open
by Rich Bowen 07 Nov '18

07 Nov '18

We are pleased to announce the (tentative) schedule of talks for the upcoming CentOS Dojo in Brussels, which will be held on the day before FOSDEM - February 1, 2019 - at the Grand Place Marriott. Details, and the schedule, are now available at https://wiki.centos.org/Events/Dojo/Brussels2019 (Schedule subject to change). Registration is free, but we need to know how many people are coming, for catering and space purposes. You can register today at: https://www.eventbrite.com/e/centos-dojo-at-fosdem-tickets-52306704762 See you in Brussels! -- Rich Bowen - rbowen(a)redhat.com @CentOSProject // @rbowen 859 351 9166

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OL 7.6 is out
by Rainer Traut 07 Nov '18

07 Nov '18

Hi there, just fyi, Oracle Linux 7.6 is out. The release is available in the repos. Rainer

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Centos 6.9 Ipset broken after installing xtables-addon
by George Travan 07 Nov '18

07 Nov '18

I have managed to break my system by installing xtables-addons-1.37. Now ipset does not work. "Kernel error received: Invalid argument" I built the addon from source on my centos 6.9 system as per instructions for centos 6. It looks to me that xtables-addons has built and installed a ipset-4 extension due to my kernel: 2.6.32-754.6.3.el6.x86_64 I already had ipset v6.11 installed and now both do not work. The README indicated that I need a kernel > 2.6.35 which I presume is the problem. This now has become a major problem for me as I rely on ipset. Anyone suggest what I might do to fix this problem? Thanks, /Geo

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polkit-gnome-0.106 with CentOS 7.5 ???
by Kay Schenk 04 Nov '18

04 Nov '18

What can anyone tell me about the polkit-gnome package that came with CentOS 7.5? Looking at the Fedora pack for the same, it seems like I'm missing pieces of this package. Re: https://rpmfind.net/linux/RPM/epel/7/x86_64/Packages/p/polkit-gnome-0.106-0… I start my gui session with startx instead of GDM. I am having a lot of authentication issues at the moment. I am somewhat familiar with dealing with polkit but mostly things are not working well at all. On an older version of openSUSE I once used with systemd, I started up a kde-polkit-integration app as part of my X session init, in a local .xinit file. Should I do the same with the supplied polkit-gnome provided? Any insights much appreciated. Thanks. ------------------------------------------ MzK "Less is MORE."

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reading old dump backups from 2009
by Nataraj 04 Nov '18

04 Nov '18

I have and old dump format backup done under fedora 7 which is stored on disk and has an sha256sum file that indicates there are no data errors in the backup file. When I try to read the file with restore under CentOS 6, I get the following error: cat /etc/redhat-release CentOS release 6.10 (Final) restore tvf u1_l0_04-29-09_md1.dump Verify tape and initialize maps Input is from a local file/pipe Checksum error 20311110402, inode 0 file (null) restore: Tape is not a dump tape I have another copy of the backup on another disk with the same checksum and it gets the same error as well. Here's a log file from when the backup was done back in 2009: DUMP: Date of this level 0 dump: Wed Apr 29 09:24:36 2009 DUMP: Dumping /dev/md1 (/u1) to u1_l0_04-29-09_md1.dump DUMP: Label: /u1 DUMP: Writing 10 Kilobyte records DUMP: Compressing output at compression level 2 (bzlib) DUMP: mapping (Pass I) [regular files] DUMP: mapping (Pass II) [directories] DUMP: estimated 95176885 blocks. DUMP: writing QFA positions to u1_l0_04-29-09_md1.qindex DUMP: Volume 1 started with block 1 at: Wed Apr 29 09:25:05 2009 DUMP: dumping (Pass III) [directories] DUMP: dumping (Pass IV) [regular files] DUMP: 0.96% done at 3032 kB/s, finished in 8:38 . . . DUMP: 100.00% done at 4075 kB/s, finished in 0:00 DUMP: Closing u1_l0_04-29-09_md1.dump DUMP: Volume 1 completed at: Wed Apr 29 16:00:09 2009 DUMP: Volume 1 took 6:35:04 DUMP: Volume 1 transfer rate: 2146 kB/s DUMP: Volume 1 96607840kB uncompressed, 50878096kB compressed, 1.899:1 DUMP: 96607840 blocks (94343.59MB) on 1 volume(s) DUMP: finished in 23704 seconds, throughput 4075 kBytes/sec DUMP: Date of this level 0 dump: Wed Apr 29 09:24:36 2009 DUMP: Date this dump completed: Wed Apr 29 16:00:09 2009 DUMP: Average transfer rate: 2146 kB/s DUMP: Wrote 96607840kB uncompressed, 50878096kB compressed, 1.899:1 DUMP: DUMP IS DONE Have there been any changes to the format of dump files and if so, is there a version available that can read this older backup? Any other suggestions on how to read this backup would be helpful. Thank You, Nataraj

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inquiry about limitation of file system
by yf chu 04 Nov '18

04 Nov '18

I have a website with millions of pages. We often deploy our websites on centos with Nginx and Apache Http Server as HTTP Web Server. I am very worried about the performance of web server if the amount of pages is very very large. I wonder whether the performance will be affected if there are too many files and directories on the server. Besides, our bugdet is limited. We do not want to deploy too many Servers and use other file system such as GFS. So I want to know the limitation of centos file system and how should I handle this issue.

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fingerprint reader on C-7 ???
by Fred Smith 03 Nov '18

03 Nov '18

Hi all! I just got a new (to me) used laptop (HP EliteBook 8530p) and find that it has a fingerprint reader. Wondering if it could be made to work for me (Centos-7) I did a lot of googling (well, actually duck-duck-go-ing) and found a ton of hits on either setting it up in Windoze, or others wondering if it can be used in Linux. Some info on setting it up in Ubuntu, and a couple of pages on setting it up in Fedora, pages that were ten years old, or so. Found an academic paper on a group that wrote portable tools in Java that allegedly enable it in a cross-platfor manner, but not the software itself. Does anyone here have any better information on if it is possible, and if so, how? thanks in advance! Fred -- ---- Fred Smith -- fredex(a)fcshome.stoneham.ma.us ----------------------------- The eyes of the Lord are everywhere, keeping watch on the wicked and the good. ----------------------------- Proverbs 15:3 (niv) -----------------------------

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PostgreSQL port accessible even though it should be blocked by firewall
by Frank Thommen 01 Nov '18

01 Nov '18

Hi, this puzzles me: On one of our developer workstations, all ports with the exception of SSH are closed: $ firewall-cmd --list-all public (active) target: default icmp-block-inversion: no interfaces: eno1 sources: services: ssh dhcpv6-client ports: 22/tcp protocols: masquerade: no forward-ports: source-ports: icmp-blocks: rich rules: $ but still port 5432/tcp (PostgreSQL) is open: $ nmap -P0 devel-host Starting Nmap 6.40 ( http://nmap.org ) at 2018-10-29 19:46 CET Nmap scan report for devel-host (xxx.xxx.xxx.xxx) Host is up (0.94s latency). rDNS record for xxx.xxx.xxx.xxx: devel-host.our.domain Not shown: 998 filtered ports PORT STATE SERVICE 22/tcp open ssh 5432/tcp open postgresql Nmap done: 1 IP address (1 host up) scanned in 57.26 seconds $ PostgreSQL is running in a docker container: $ docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 6f11fc41d2f0 postgres "docker-entrypoint..." 4 days ago Up 4 days 0.0.0.0:5432->5432/tcp postgres $ The various docker interfaces and virtual bridges are not assigned to any specific zone. Why is port 5432/tcp open? frank

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Discuss November 2018