This is my mdadm raid command chet-sheet in linux.Mdadm is a Linux utility to manage and monitor RAID software handled by linux kernel if you do not have or do not use any raid card. Check mdadm raid status from…
Patch Linux Vulnerability CVE 2021-4034
This Linux vulnerability related to local privilege escalation vulnerability was found on polkit’s pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of…
Ceph pg Inconsistencie
Based on Ceph health status in my cluster, we see there is one pg with inconsistencie issue; #ceph -s We need to find the related pgs and perform deep-scrup to this spesific pg in order to remove this error.# ceph…
Apache Log4j vulnerability (CVE-2021-44228)
a remote code execution (RCE) vulnerability in Apache log4j 2 was identified being exploited in the wild. Public proof of concept (PoC) code was released and subsequent investigation revealed that exploitation was incredibly easy to perform. By submitting a specially crafted request to a…
Proxmox RRDC update error
Have an issue with one of my customer Proxmox RRDC update error in thecluster with error below; This is caused by drifting time on the host. Somehow the time use hwclock with wrong date. To resolve the issue, need to…