21 April, 2020

Centos messages flooded with Create slice, Removed slice

In Centos 7/8 /var/log/messages is flooded with this : Apr 21 08:40:01 tinky systemd: Created slice User Slice of root. Apr 21 08:40:01 tinky systemd: Started Session 1709 of user root. Apr 21 08:40:01 tinky systemd: Removed slice User Slice of root. Apr 21 08:50:01 tinky systemd: Created slice User Slice of root. Apr 21 […]

Read More
zfs on linux

25 March, 2020

Sharenfs on ZFS and mounting with autofs

ZFS has this less documented feature, called share[nfs|smb]; I tried it once, it “did not work on first attempt”™ So I ignored it; However now we faced an issue where we normally exported ZFS volumes using /etc/exports (NFS); and mounted using /etc/fstab; but got an empty directory where there was a “sub” zpool volume; This […]

Read More

20 February, 2020

Increasing allowed nproc in Centos 7

The nproc are the number of proces units a user can start; This is managed in the file : /etc/security/limits.confbut can be overwritten in /etc/security/limits.d/ normally in /etc/security/limits.d/20-nproc.conf which has priority over the limits.conf file. To check how many nproc’s you are using, you need to include the amount of threads, this can be seen […]

Read More

17 February, 2020

bare minimum samba share on Centos 8

This is a quick guide on how I got a simple samba (4.10.x) share to work on Centos 8.1.1911 (Core) and Windows 10 Enterprise (1903). By god this should not be so hard, but it f*cking is. Generic setup Install samba : yum install samba edit /etc/samba/smb.conf change the workgroup, netbios name and security, add […]

Read More

04 December, 2019

Set IPMI to use DHCP

Older posts
© SvennD