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Style Guide for ASCII Text Documents ?
by Nicolas Kovacs 06 Nov '20

06 Nov '20

Hi, Can anyone on this list recommend a good style guide for formatting technical documentation (HOWTOs related to CentOS servers) using ASCII text only ? Markdown and/or AsciiDOC are *not* an option, since these documents should be easily readable in a text console. Cheers from the sunny South of France, Niki -- Microlinux - Solutions informatiques durables 7, place de l'église - 30730 Montpezat Site : https://www.microlinux.fr Blog : https://blog.microlinux.fr Mail : info(a)microlinux.fr Tél. : 04 66 63 10 32 Mob. : 06 51 80 12 12

4 3

enp0s25 disconnect
by Michael Hennebry 04 Nov '20

04 Nov '20

I tried to boot a Centos 8.2 install CD, one burned with Centos-8-2-2004-x86_64-boot . In the setup, it persisted in telling me that ethernet thing enp0s25 was disconnected. Nyet. 'Twas working several seconds previous and is working now. This is a showstopper. How do I debug it? Also, whatever else it did, I now have environment variable HOSTNAME=2001-48F8-3004-2CE-1AE9-F1BF-8759-FF4C-dynamic.midco.net . It shows up on my terminal window headers and as part of the prompt on one terminal. WTF is going on? -- Michael hennebry(a)web.cs.ndsu.NoDak.edu "Sorry but your password must contain an uppercase letter, a number, a haiku, a gang sign, a heiroglyph, and the blood of a virgin." -- someeecards

2 3

dnsmasq centos 7
by Jerry Geis 03 Nov '20

03 Nov '20

HI I setup dnsmasq on my computer. I tested with an entry in /etc/hosts for laptop.w530 I tested with "host laptop.w530" and I get unresolved (expected). If I add "nameserver 192.168.1.8" (my computer) to top of /etc/resolv.conf and do "host laptop.w530" I get 192.168.1.105 - so seems to be working. Then I goto another machine, add the "nameserver 192.168.1.8" to /etc/resolv.conf and do the same "host laptop.w530" and it does not resolve. I can "telnet 192.168.1.8 53" to my machine and I get a response. Am I missing something to have "other" machines ask my machine for name resolution ? Thanks, Jerry

5 7

ThinkStation with BIOS RAID and disk error messages in gparted
by H 03 Nov '20

03 Nov '20

My ThinkStation runs CentOS 7 which I installed on a BIOS RAID 0 setup with two identical 256 Gb SSDs after removing Windows. It runs fine but I just discovered in gparted something that does not seem right: - Launching gparted it complains "invalid argument during seek for red on /dev/md126" and when I click on Ignore I get another error "The backup GPT table is corrupt, but the primary appears OK, so that will be used." I then click on OK whereupon I again see the second error message. I then see "Not all of the space available to /dev/sdb appears to be used, you can fix the GPT to use all of the space (an extra 6832 blocks) or continue with the current setting? " I click on Fix but nothing seems to happen. I am not sure what /dev/md126 is but it is the exact same size as sda and sdb which I believe are the two RAID disks. I also have two other hard disks which seem to be fine, one using XFS, the other ZFS. Does this look familiar to anyone? Given the error messages it seems this is something I ought to fix sooner rather than later. Any idea what I should do? Thanks.

3 4

Odd issue happening CentOS 7
by Jerry Geis 02 Nov '20

02 Nov '20

So I have two CentOS 7 machines running. if I am on my server and I do "curl http://192.168.1.8" I get data. If I do "host devgeis.LayeredSolutionsInc.com" I get the correct address 192.168.1.8 if I goto another machine with CentOS 7. I do "curl http://192.168.1.8" I get data. I do "host devgeis.LayeredSolutionsInc.com" I get the correct address 192.168.1.8 BUT then I do "curl http://devgeis.LayeredSolutionsinc.com" I get "nothing" BUt then doing the -v with "curl -v http://devgeis.LayeredSolutionsinc.com" * About to connect() to devgeis.LayeredSolutionsinc.com port 80 (#0) * Trying 198.168.1.8... So why when using the name is it not giving me the index.html page ? Should not be a firewall issue - as the actual address worked. Also I tried stopping the firewall - and all the above is the exact same. What is possibly happening here ? Thanks Jerry

4 4

Cuentos live cd
by Leonardo Cuyar Morales 02 Nov '20

02 Nov '20

If there any guide / howto yo Bulls a vernos live cd? -- Imagination is more important than knowledge

2 2

Run as root on reboot
by david 29 Oct '20

29 Oct '20

Folks Is there a way to reboot and have a script run without intervention. During initial setup, I'd like to avoid the manual actions of logging on as root and executing a command, but instead have that command run without intervention. The output of the command would still show up on the terminal that initiated the reboot. Security is not a concern here. And I don't want to invoke high-powered functions like "jumpstart". David

9 10

System not logging
by Gary Stainburn 29 Oct '20

29 Oct '20

One of my boxes has stopped logging some of the things it's supposed to. I use rsyslog which used to send named and dhcpd entries to separate log files. Both named and dhcpd are working. I have shut down the DHCPD server and run it in debug mode and the output is produced as expected. I have shut down rsyslog and run that in debug mode and it looks like everything is running, but it's not receiving messages to log. I tried journalctl | grep -Ei 'dhcpd'|tail and I see the log entries for the service starting up, but no entries for DHCP transactoins happening. My rsyslog also receives network messages from my firewall and they are logging as expected. This suggests to me that the problem is that the log entries are either not being generated, or are not being allowed to get to rsyslog. Anyone go any ideas? I've tried the usual first step, and briefly disabled selinux but that made no difference Gary

2 1

CentOS 8 updates missing
by Marco 27 Oct '20

27 Oct '20

Hi, Is there some reaseon why recent CentOS 8 updates (Thunderbird, Firefox) are missing? Marco

3 2

Centos 7 + PHP7.2 - variables_order not working
by Gary Stainburn 27 Oct '20

27 Oct '20

I've just moved my site onto a new box and I'm having a real problem with $_REQUEST. The variables_order and request_order values are not being respected. I need the cookies to take the lowest priority, so I put it first in the sequence. However, as the code below shows this is not happening. Changing variables_order and request_order does not make any difference. Anyone got any ideas why? I've not seen this before. PHP.ini settings variables_order = "CGPS" request_order = "CGPS" The position of the 'C' seems to make no difference at all, but if I remove it then I get the expected response. adoptions get array(1) { ["adoptdate"]=> string(10) "2020-10-26" } adoptions post array(0) { } adoptions COOKIE array(7) { ["login"]=> string(1) "1" ["sesid"]=> string(10) "1603798666" ["adoptdate"]=> string(10) "2020-10-27" } adoptions REQUEST array(7) { ["adoptdate"]=> string(10) "2020-10-27" ["login"]=> string(1) "1" ["sesid"]=> string(10) "1603798666" }

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