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  • Debian GNU/Linux
    • System Installation guides for system administration software on Debian GNU/Linux (backup, security, …)
      • SetupSetting up a new Debian GNU/Linux system.
      • SecuritySecurity enhancing software for Debian GNU/Linux.
      • SoftwareVarious command line software for Debian GNU/Linux.
      • XenHowtos about the Xen virtualization solution.
      • OVHHowtos about OVH dedicated server hosting solutions.
    • Servers Servers installation guides (HTTP, Email, Jabber, …).
      • Apache 2Apache 2 installation and configuration howtos for Debian.
      • HTTPHTTP servers installation guides for Debian GNU/Linux.
      • PHPHowtos helping to setup a PHP server.
      • MariaDB // MySQLHowtos helping to setup a MariaDB // MySQL server on Debian GNU/Linux
      • DatabasesDatabases servers installation guides for Debian GNU/Linux.
      • E-MailsE-Mails servers installation guides for Debian GNU/Linux. IMAP, SMTP, …
      • SyslogHowtos to setup Rsyslog and Syslog-NG system events logs management softwares.
      • MiscellaneousVarious servers installation guides for Debian GNU/Linux.
    • Web applications Installation guides of Web applications (Drupal, Wordpress, Tiny Tiny RSS, Piwik, …).
      • AdministrationWeb applications easing system administration.
      • BitTorrentWeb frontends for BitTorrent download tools. This applications are designed to setup a seed-box.
      • Bookmarks managementInstallation guides for bookmarks management web applications.
      • Content syndication // RSSHow to install content syndication Web tools. This include RSS feed readers and planets.
      • Files managementHow to install files management Web tools.
      • MiscellaneousInstallation guides for web applications that fits in none of the other categories.
      • MonitoringTools for monitoring servers state.
      • StatisticsHow to install statistics related web tools.
  • Ubuntu GNU/Linux
    • SoftwareHowtos helping installing third party software on Ubuntu GNU/Linux
    • SystemHowtos for setting up problematic hardware on Ubuntu GNU/Linux.

System

Installation guides for system administration software on Debian GNU/Linux (backup, security, …)

Security

Install Rootkit Hunter (rkhunter) on Debian

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.

By Pierre-Yves Landuré, 10 months10 months ago
Security

Block DFind vulnerability scanner using IPtables

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.

By Pierre-Yves Landuré, 10 months10 months ago
Security

Set access restrictions on a network port with iptables on Debian

This post describe a simple way to block all access to a network port on Debian, except for specified IP addresses.

By Pierre-Yves Landuré, 10 months10 months ago
Security

Install PeerGuardian Peer to Peer firewall on Debian

PeerGuardian is a firewall for Peer to Peer software (i.e. BitTorrent) blocking bad peers.

By Pierre-Yves Landuré, 10 months1 month ago
Security

Secure /tmp folder on Debian

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.

By Pierre-Yves Landuré, 10 months10 months ago
Software

Install sf-downloader on Debian

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.

By Pierre-Yves Landuré, 10 months1 month ago
Software

Install biapy-updater 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.

By Pierre-Yves Landuré, 10 months1 month ago
Setup

Fix the network interface disappearance issue 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.

By Pierre-Yves Landuré, 10 months10 months ago
Setup

Install Liquid Prompt sur Debian

Liquid Prompt is an adaptive prompt for Bash and Zsh. This guide ease its installation on Debian.

By Pierre-Yves Landuré, 10 months10 months ago
Setup

Reset a USB device 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.

By Pierre-Yves Landuré, 10 months10 months ago
Setup

Reset a PCI device on Debian

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 Pierre-Yves Landuré, 10 months10 months ago
Setup

Maximize available disk space on Ext 3 & 4 filesystems

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.

By Pierre-Yves Landuré, 10 months10 months ago
Setup

Change the hostname of a Debian GNU/Linux system

For system administrator frequently cloning Debian GNU/Linux virtual hosts, this guide ease the modification of the system hostname.

By Pierre-Yves Landuré, 10 months10 months ago
Setup

Setup SSH sessions to be persistent between connections on Debian

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.

By Pierre-Yves Landuré, 10 months10 months ago
Setup

Synchronize system clock to International Atomic Time on Debian

NTP (acronym of Network Time Protocol) is a communication protocol conceived to synchronize computer clocks worldwide to the International Atomic Time (TAI).

By Pierre-Yves Landuré, 10 months10 months ago
Software

Install Vim on Debian

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 Pierre-Yves Landuré, 10 months10 months ago
Setup

Redirect system emails to an external email address

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.

By Pierre-Yves Landuré, 10 months10 months ago
Software

Setup Debian’s security repository

The Debian security team provides regular security fixes in a dedicated software repository. It is enabled by default. This guide move the security repository configuration from APT main repository configuration to a satellite file.

By Pierre-Yves Landuré, 10 months10 months ago
Seafile
Software

Install Seafile client on Debian

Seafile is a self-hosted alternative to Dropbox. This guide describe how to install the Seafile command-line client as a service on Debian.

By Pierre-Yves Landuré, 10 months10 months ago
Software

Setup the contrib and non-free Debian repositories

The default Debian installation only provide software from the “main” repository. In order to have access to all Debian software, contrib and non-free repositories must be configured. This howto describe an automated process to enable the contrib and non-free repositories in Apt.

By Pierre-Yves Landuré, 10 months10 months ago
Software

Setup the Debian-Updates repository (ex volatile)

The Debian-Updates repositories provides fresher versions of packages available in mainstream Debian, one of which is the well-known ClamAV. This howto describe an automated process to enable these repositories in Apt.

By Pierre-Yves Landuré, 10 months10 months ago
Software

Install (Let’s Encrypt) certbot client acme.sh on Debian

acme.sh is a handy command line client for managing and using SSL certificates provided by Let’s Encrypt.

By Pierre-Yves Landuré, 10 months10 months ago
Security

Install the ClamAV antivirus on Debian

ClamAV is a free software antivirus particularly suited to scan e-mails during their SMTP server processing. This howto helps you install the latest version of ClamAV on Debian.

By Pierre-Yves Landuré, 11 months10 months ago
Recent Posts
  • Install MusicBrainz Picard on Ubuntu
  • Install Rootkit Hunter (rkhunter) on Debian
  • Block DFind vulnerability scanner using IPtables
  • Set access restrictions on a network port with iptables on Debian
  • Install PeerGuardian Peer to Peer firewall on Debian
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