If you install libraries with pip command you might find yourself in the following situation:
New Redis server (4.0.9) in Ubuntu 16.04 LTS
One of our critical service was under Ubuntu 16.04 LTS (and is scheduled for update, but this a another story!) and how it always happens…
Replication hangs with Relay_Master_Log_File mysql-bin.999999 -wrong variables in mariadb (MySQL) show slave status
Several days after another .999999 hang out – mariadb (MySQL) stopped flushing relay-bin log after mysqld-relay-bin.999999, the monitoring of one of the slaves got critical…
Redis server with Error registering fd event for the new client: Numerical result out of range
We have master slave setup with redis servers and after some time the master server began to refuse connections with Error: Connection reset by peer…
mariadb (MySQL) stopped flushing relay-bin log after mysqld-relay-bin.999999
We have a pretty big MariaDB master-slave setup, which is really under heavy load and suddenly one of our slaves stopped purging relay logs! And…
apt-mark – upgrade with the exception of certain packages
If you are in a situation when you want to upgrade your system, but do not want to upgrade a certain software in it you…
ssh remote command escape special characters when using variable
You should always enclose the command given to the ssh client for remote executing! You see the difference! The second line the special character “*”…
Selinux permission denied and no log in audit.log
So you execute a script and get a “Permission denied” and you know you have enabled SELinux. OK to disable the selinux is not an…
Install the new storcli to manage (LSI/AVAGO/Broadcom) MegaRAID controller under CentOS 7
After the acquisition of LSI there was a major change with the management console utility for the MegaRAID controllers. The utility was renamed from MegaCli…
Access Violation error when compiling packages in Gentoo – symlink
Here is another example of an Access violation error when building packages in Gentoo. This time the build process could not make a symbolic link…