Installation guides for system administration software on Debian GNU/Linux (backup, security, …)
biapy-downloader is a script created to automate the downloading of software’s latest versions. It find the URL of the latest version of the software, download its content and, if needed, extract it. This guide describe its installation on Debian. This howto is tested on: Debian 10.0 Buster This howto is Read more…
Tuning Primer is a tool helping to tune the performances of a MariaDB (MySQL) server. This howto is tested on: Debian 10.0 Buster Requirements This howto requires: a MySQL or MariaDB server, as described by Install MariaDB (MySQL) on Debian. Installation Install the software’s requirements: Install the software: Usage Wait Read more…
This howto is tested on: Debian 10.0 Buster Requirements This howto requires: a MySQL or MariaDB server, as described by Install MariaDB (MySQL) on Debian. the MariaDB sys schema, as described by Install the MariaDB sys schema on Debian. Environment setup Installation Install the software: Performance schema Enable the database Read more…
This howto is tested on: Debian 10.0 Buster Requirements This howto requires: a MariaDB (MySQL) server, as described by Install MariaDB (MySQL) on Debian. Backup Manager, as described by Install Backup Manager on Debian. Settings Initialize the settings associative array: Set the name of the MySQL account to be created Read more…
Backup Manager store its backups archives on the local disk. To prevent data loss in case of hardware failure, it is recommended to create a backup copy of the archives on a remote host. This post describe how to setup Backup Manager to copy its archives to a remote host Read more…
SFTP is a protocol allowing for secure file transfers over SSH. This guide describe how to setup SFTP only accounts on a SSH server.
bu-tools is a shell script easing the management of backup software such as Backup Manager. It offer a standardized method to manage the list of backed-up paths. This howto is tested on: Debian 10.0 Buster Requirements This howto recommends: biapy-updater, for automatic software updates. This howto recommends one of these Read more…
Backup Manager is a comprehensive backup tool providing a host of data backup methods. While too simple to manage a server farm, it is perfectly able to backup a lone server. This howto is tested on: Debian 10.0 Buster Settings Initialize the settings associative array: Set the group owning the Read more…
Rootkit Hunter is, as its name describe, a rootkits detection tool. It can detect if a system has been compromised. It is a required tool for checking a system health. This guide describe how to configure rkhunter on Debian.
DFind is the vulnerability scanner generating the “w00tw00t.at.ISC.SANS.DFind” HTTP requests found in Web servers logs. This guide setup some iptables rules blocking these requests. A better method is to use fail2ban to block the sources of these requests.
This post describe a simple way to block all access to a network port on Debian, except for specified IP addresses.
PeerGuardian is a firewall for Peer to Peer software (i.e. BitTorrent) blocking bad peers.
The /tmp folder can be used to compromise the system security. A simple way to prevent this issue is to prevent the execution of scripts stored in this path. This guide describe how to do this.
sf-downloader is a script created to ease the download of software’s latest versions (from sourceforge.net initially). It find the correct download link for the software, and then download it and, if needed, extract it. This guide describe its installation on Debian.
biapy-updater is a Bash script designed to automate keep up-to-date tools provided by this site. It is a wrapper around wget to only replace the checked tool if a newest version is available. This guide describe how to install it on Debian.
After a hardware change (either network interface or motherboard), the network interfaces can be missing. This guide describe how to fix this issue.
Liquid Prompt is an adaptive prompt for Bash and Zsh. This guide ease its installation on Debian.
This howto describes how to reinitialize the state of a USB device without unplugging it. It does not work for USB devices not listed by “lsusb” command.
In some cases, i can be needed to reset a PCI device without restarting the system. This guide describe how to reset a PCI device from command line.
By default, Ext 3 & 4 filesystems reserve 5% of available disk space for special processes (root user, syslog, fragmentation avoidance, etc.). On big partitions, it amount to quite a lot of lost space. This howto describe how to get back this disk space.
For system administrator frequently cloning Debian GNU/Linux virtual hosts, this guide ease the modification of the system hostname.
By default, a SSH session close in case of network disconnection, killing automatically any and all software currently running. This guide use the “byobu” software render SSH sessions persistent during disconnections.
NTP (acronym of Network Time Protocol) is a communication protocol conceived to synchronize computer clocks worldwide to the International Atomic Time (TAI).
Vim (for Vi Improved) is a screen-oriented text editor originally created for the Unix operating system. This guide install a configured Vim as the default system editor.
By default, system emails are sent to the local root account. These emails can provide alerts and tips on the system health. This guide help you setup a redirection to an external email address (sysadmin’s one) for these emails.