Update the conda installed by miniconda3 is simple: And here is the update process.
Debug options for LXC and lxc-start when lxc container could not start
Setup and running LXC container is really easy, but sometimes it is unclear why the LXC container could not start. Most of the time, there…
Gentoo – bash: su: command not found – missing su flag
Upgrading multiple packages may lead to interesting results especially if the queue has not finished yet or the fails with an error! Apparently, there are…
Installing single node Elasticsearch 7.16 and Kibana 7.16 behind nginx web server under CentOS 8
This article will show how to install two big software – Elasticsearch to store information and Kibana to visualize the information under CentOS 8. Elasticsearch…
Kernel building failure – unable to initialize decompress status for section .debug_info
Upgrading the Gentoo system may lead to some glitches especially if not emerge the world slot very often! In fact, leaving older packages living with…
Elasticsearch failed to set password apm_system error in initial setup
A relatively typical error when installing a single node Elastic Elasticsearch software is when the passwords are set: Such error may prevent the initial password…
logrotate stopped rotating a log file
logrotate under CentOS 7 had worked perfectly till one day when a web server log stopped being rotated! All the other logs were rotated successfully….
Install and make GNU GCC 10 default in Ubuntu 20.04 Focal
The best way to install and use GNU GCC 10 is to install first, build-essential package, which will pull in the GNU GCC 9.2, and…
Changing the queueing discipline – Error: Cannot delete qdisc with handle of zero.
If trying to delete a qdisc root to set no rules and no queuing algorithm probably for the purpose to add a new one a…
OpenVPN stops working after network restart
Encountering the following problem – OpenVPN works perfectly when started or restarted, but when the network connection of the computer restarts or for example, the…