Discuss March 2019

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85 participants
70 discussions

konqueror vs. centos and mathematics
by Michael Hennebry 19 Mar '19

19 Mar '19

I'm running centos 7. Firefox spends so much time in th D state that I am trying konqueror. Displaying mathematics on wikipedia, e.g. Remez algorithm seems to be a no go. Wikipedia seems to use tex, so I installed texlive and texlive-* . Firefox hadn't needed it and it did not seem to help konqueror. My guess is that there is a bit somewhere that I need to flip, but I have no idea where it is. Suggestions? -- 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

5 7

PHP 7.x on CentOS 7 : which solution ?
by Nicolas Kovacs 19 Mar '19

19 Mar '19

Hi, As you all know, CentOS 7 is shipping PHP 5.4, which is OK in some situations. Unfortunately, some applications like OwnCloud require a more recent version of PHP. Up until recently, I've been using PHP 5.6 packages from the Webtatic repository. Despite the bad press this third party repo seems to have, it has been working perfectly for me for a few years. Here's the PHP 5.6 packages I have on an OwnCloud server: $ rpm -qa | grep php php56w-devel-5.6.40-1.w7.x86_64 php56w-pdo-5.6.40-1.w7.x86_64 php56w-gd-5.6.40-1.w7.x86_64 php56w-mysql-5.6.40-1.w7.x86_64 php56w-process-5.6.40-1.w7.x86_64 php56w-pear-1.10.4-1.w7.noarch php56w-common-5.6.40-1.w7.x86_64 php56w-xml-5.6.40-1.w7.x86_64 php56w-pecl-redis-3.1.6-1.w7.x86_64 php56w-cli-5.6.40-1.w7.x86_64 php56w-mcrypt-5.6.40-1.w7.x86_64 php56w-mbstring-5.6.40-1.w7.x86_64 php56w-pecl-igbinary-2.0.5-1.w7.x86_64 php56w-pecl-apcu-4.0.11-2.w7.x86_64 php56w-intl-5.6.40-1.w7.x86_64 php56w-5.6.40-1.w7.x86_64 php56w-soap-5.6.40-1.w7.x86_64 Now I'll have to upgrade these to some version of PHP 7. So I googled "php 7 centos 7" and found quite a wealth of - sometimes contradictory - information. 1. The "recommended" way of doing things seems to be the Red Hat Software Collections. Correct me if I'm wrong. I wonder if this way of doing things will enable me to get all the PHP modules listed above. 2. The use of Webtatic seems to be frowned upon. I still have to figure out why, since this repository has always worked perfectly for me. 3. Then there's another repository managed by Remi Collet. Any thoughts on that? And then there's also the question : which version of PHP 7 should I choose ? On my servers, I'm mainly hosting WordPress, Dolibarr and OwnCloud. Any suggestions ? I'm no lamer for doing a bit of RTFM, so a pointer to documentation will do. The problem is not so much that there is no information on the subject. It's rather : there's too much. As we say in France : I'm confused about which saint to send my prayers to. :o) Cheers, 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

5 6

compile question on CentOS 7
by Jerry Geis 18 Mar '19

18 Mar '19

I am trying to use the fnmatch() function in a C program and pass as the 3rd arg (options) of case insensitive search... When I use the value FNM_CASEFOLD it does not work... I'm confused on what to send to fnmatch() to do a case insensitive search. Any pointers ? Thanks. Jerry

2 2

netmask set with ifconfig doesn't hold
by KM 14 Mar '19

14 Mar '19

I gather that ifconfig is a way of setting the netmask in the current shell instead of a persistent value. I say this because I am running it and see it for my specific network interface, directly after running it. However if I restart the network service the netmask is reverted to the previous value. What is the correct way to set the new netmask for the network interface to make it persistent. if it's different for CentOS 6 and 7 I'd like to know that too. FYI - I tried searching about this but none of the info has really helped so far. Also consider this like "changing netmask for dummies" since I am not an administrator and am just searching and trying these things. Thanks very much in advance.KM

2 4

read permission on rotated logs
by Alice Wonder 14 Mar '19

14 Mar '19

When logs (e.g. /var/log/maillog) are rotated (e.g. to /var/log/maillog-YYYYMDD) is there a way via systemd or whatever to assign read permission to a specific group? Right now, for example - ls -l maillog* -rw------- 1 root root 3105240 Mar 13 22:04 maillog -rw------- 1 root root 1079031 Feb 24 04:39 maillog-20190224 -rw------- 1 root root 7237640 Mar 1 12:59 maillog-20190228 -rw------- 1 root root 1297508 Mar 3 04:21 maillog-20190303 -rw------- 1 root root 1319371 Mar 10 08:17 maillog-20190310 What I would like - ls -l maillog* -rw------- 1 root root 3105240 Mar 13 22:04 maillog -rw-r----- 1 root somegroup 1079031 Feb 24 04:39 maillog-20190224 -rw-r----- 1 root somegroup 7237640 Mar 1 12:59 maillog-20190228 -rw-r----- 1 root somegroup 1297508 Mar 3 04:21 maillog-20190303 -rw-r----- 1 root somegroup 1319371 Mar 10 08:17 maillog-20190310 That way a user in somegroup could run a script that analyzes the rotated logs w/o needing root privileges. Obviously I could put a script in /etc/cron.hourly that looks for rotated log files and changes ownership / permission, but I am wondering if there is a "proper" way to configure it via systemd or another utility.

4 5

howto monitor disks on a serveraid-8k?
by hwilmer 14 Mar '19

14 Mar '19

Hi, I'd like to monitor the disks connected to a ServeRaid-8k controller in a server running Centos 7 such that I can know when one fails. What's the best way to do that?

5 6

Have you used Duplicati 2.0.4.5 to backup CentOS 7.6 1810 Linux Server?
by Turritopsis Dohrnii Teo En Ming 14 Mar '19

14 Mar '19

Good evening from Singapore, Have you used Duplicati 2.0.4.5 to backup CentOS 7.6 1810 Linux Server? Is it good? Thank you for your review. ===BEGIN EMAIL SIGNATURE=== The Gospel for all Targeted Individuals (TIs): [The New York Times] Microwave Weapons Are Prime Suspect in Ills of U.S. Embassy Workers Link: https://www.nytimes.com/2018/09/01/science/sonic-attack-cuba-microwave.html ******************************************************************************************** Singaporean Mr. Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 14 Feb 2019 [1] https://tdtemcerts.wordpress.com/ [2] https://tdtemcerts.blogspot.sg/ [3] https://www.scribd.com/user/270125049/Teo-En-Ming ===END EMAIL SIGNATURE===

1 0

Firefox view downloads folder - changed program
by Gary Stainburn 14 Mar '19

14 Mar '19

Hi All, A short while back, Firefox changed from using (I believe) Dolphin to using gwenview when I choose 'view in container' or 'view all downloads'. The problem with this is that when I choose 'view in containter' it no longer selects the appropriate file. Does anyone know how to change it back? I'm using C7 with KDE Gary

1 0

Centos installer not detecting hard drive
by Farid Izem 14 Mar '19

14 Mar '19

Hi, I have a new labtop and i want to install CentOS 7.6 on it. My labtop has two hard drives : - A 256Go SSD - A standard 1 To hard drive None of the two hard drives are detected by the Centos installer consequently i can't proceed with the installation. If i try with a Fedora server distro, then the standard hard drive is detected, the SSD one is still not detected. I do prefer to install Centos as is is the closed Linux version from RHEL, so what can i do to solve the issue ? Regards, Faird

3 2

Nvidia config tool config order of screens doesn t work
by Ralf Prengel 12 Mar '19

12 Mar '19

Hallo, after installing 2 Nvidia Gforce 650er cards (2 cards with 2 displays) and the driver from nvidia.com my 4 displays are active and everything is fine. My question: the option to configure the displays using the mouse to move the screens in the right order doesn t work like under windows with simple moving. Sometimes it is possible to change the order but sometimes it isn t possible to move a screen between 2 others. Any hints how to solve this? Ralf

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Discuss March 2019