Unix


Bash
Ubuntu
Debian

How to fix «GPG error: http://nginx.org wheezy Release: The following signatures were invalid: KEYEXPIRED 1471427554» in Debian? [Debian] (2)
Hox to fix a `proftpd-basic` installation deadlock on Debian with sysvinit? [Debian] (2)
How to find big files in Unix? [Unix] (1)
How to enable the `root` SSH login in Debian / Ubuntu (if it is disabled)? [Debian] (2)
How to become `root` in Debian / Ubuntu? [Ubuntu] (2)
How to fix «stop: Unknown instance» for PHP-FPM service stop / restart in Ubuntu? [Ubuntu] (2)
How to disable auto-turning the screen of in Ubuntu when the user is unactive? [Ubuntu] (1)
How to delete all files containing the specified text? [Bash] (1)
How to check the `net.core.somaxconn` value? [Debian] (2)
How to permanently set `net.core.somaxconn` in Debian? [Debian] (2)
How do I install legacy PHP 5.6 to Debian 9 (Stretch) for legacy Magento 1? [Debian] (1)
How do I install Let's Encrypt on Debian 8 [Debian] (1)
How to fix «GPG error» for «packages.sury.org»? [Debian] (2)
How to fix «E: The method driver /usr/lib/apt/methods/https could not be found»? [Debian] (2)
How to install `mcrypt` for PHP 7.2? [Debian] (2)
How to fix «ucfr: Attempt from package php7.1-cli to take /etc/php/7.1/fpm/php.ini away from package php7.1-fpm»? [Debian] (2)
How to fix «Failed to fetch ftp://ftp.debian.org/debian/dists/jessie-proposed-updates/InRelease»? [Debian] (2)
How to install Sentry on Debian 8? (unfinished) [Debian] (1)
My `/etc/apt/sources.list` for Debian 8 (Jessie) [Debian] (1)
How to fix «policykit-1 : Depends: libpam-systemd but it is not installable» on «aptitude install software-properties-common»? [Debian] (1)
How do I setup sysvinit instead of systemd in Debian 9 (Stretch) [Debian] (1)
How do I install Docker in Debian 9 (Stretch) [Debian] (1)
How to prevent Ubuntu / Debian from asking for the current user's password on `sudo`? [Debian] (1)
How to fix «There is no public key available for the following key IDs» / «EF0F382A1A7B6500» on `apt-get update`? [Debian] (2)
How to fix «There is no public key available for the following key IDs: EF0F382A1A7B6500» on Debian? [Debian] (2)
How to check a webserver's response from the command line? [Bash] (1)
How to find out a symbolic link's destination? [Bash] (1)
How to find out the Apache's main configuration file on a server? [Bash] (2)
How to disable the «You have new mail» message at the end of a console command's response? [Bash] (1)
[Bash] Exclude all folders for Tar except specified [Bash] (1)