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Auto Restart Services
https://www.redhat.com/sysadmin/systemd-automate-recovery 1) Edit elasticsearch service unit file using the following command systemctl edit elasticsearch.service 2) Now, add the following lines in the unit file. [Service] Restart=always 3) Refresh t...
Bacula Restores
Useful Bacula commands Watch restore job: watch -n1 'echo "status client client=\"srv-IP_IP_IP_IP\"" | bconsole' Check backup client status via bconsole: status client ==================================================================================== ...
Commvault Restores
Commvault Restores Commvault restore types: MySQL Restores File level restores VPC Restores ==================================================================================== MySQL Restores There are 2 types of database restore we can look to perform ...
Firefly 3
Firefly 3 is a self hosted finance tracking application.
Planka
Planka is a self hosted 'to-do-list' application.
Authelia
Authelia is a 2FA application that I use for protecting access to my web apps.
ARP
show arp cache arp -a
User and Database Management
Command syntax will vary between MySQL Versions ==================================================================================== User Management Show all users and hosts SELECT user, host FROM mysql. user; Add User CREATE USER 'name'@'localhost' IDEN...
Realip
==================================================================================== Ensure that the nginx 'ngx_http_realip_module' is installed: nginx -V 2>&1 | grep --color -o 'http_realip_module' 2. Create a new file, for example /etc/nginx/cloudflar...
WP-CLI
==================================================================================== WP-CLI Installation guide ------------------------------------------------------------------------------------------------------------------------------------------------ D...
TOP
------------------------------------------------------------------------------------------------------------------------------------------------ Logging interval To change ATOP's logging interval edit the below file: vim /usr/share/atop/atop.daily In here,...
Permissions Restores
==================================================================================== Client chowned their server? did you chown a clients server? Never fear, facl is here. https://kb.ukfast.net/Linux_file_permissions ========================================...
FHS - Filesystem Hierarchy Standard
==================================================================================== FHS as defined by RedHat: ------------------------------------------------------------------------------------------------------------------------------------------------ /...
LVM (Logical Volume Manager)
==================================================================================== LVM, or Logical Volume Manager, is a tool used on Linux systems to manage disk space in a more flexible way compared to traditional partitioning. It acts like a layer of abst...
STORAGE CONCEPTS
==================================================================================== This page details the storage concepts for a linux system. ------------------------------------------------------------------------------------------------------------------...
Sandboxing & CHROOT
==================================================================================== CHROOT (Changed Root) Jail CHROOT essentially means that a user or application has it's root changed, essentially locking it away from the rest of the server filesystem. ...
VI/VIM
Line Numbers vim can display line numbers using the below command: :set number Skip to specific line number To skip to line 255: :255 ------------------------------------------------------------------------------------------------------------------------...