The LXC container software comes to CentOS 8 with the EPEL 8 repository. LXC is a multiprocesses container, which offers to boot a Linux distribution…
Replace current interface configuration with a bridge device using nmcli (NetworkManager)
This article shows how the primary network interface could be replaced by a bridge device and the network interface becomes a part of the bridge…
Gentoo ERROR: Python module pytevent of version 0.10.2 not found, and bundling disabled
Emerging the sys-libs/ldb-2.3.0-r1 package may fail with an error for a missing Python mode, despite the sys-libs/tevent with a python USE flag is presented in…
Zookeeper cluster delete all in a subtree – Failed to delete some node(s) in the subtree!
Deleting a node with a subtree in a Zookeeper is pretty easy and it could be done even with the Zookeeper cli from the command-line….
Delete the zookeeper logs and snapshot with FileTxnSnapLog from the command-line
The new version of zookeeper has the ability to auto-purge the logs and snapshots (if autopurge.snapRetainCount and autopurge.purgeInterval are enabled in the configuration), but if…
Easy install the latest docker-compose with pip3 under Ubuntu
At present, the latest docker-compose version, which could be installed under Ubuntu 18, 20, and 21 is the 1.25 and 1.27 versions. There may be…
Unable to continue upgrading an old cacti 0.8.8 to the latest version 1.2.18
Upgrading an old instance of cacti monitoring software may become a challenge, because of multiple new recommendations and requirements for the latest version 1.2.x. There…
Transfer only a list of files with rsync
Transferring a list of files from one server to another maybe not so easy as it looks like, if the list consists of files with…
alter table error 1215 (HY000): Cannot add foreign key constraint
Adding a foreign key may result in the following error: This error can occur because in couple of cases and it is not very informative,…
Caching NFS files with cachefilesd
A great tool for caching a network filesystem like NFS mounts is cachefilesd! It is easy to use it and a good deal of stats…