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==================================================================================== FIND Find is a linux search tool that can be used to find a variety of files based on the given criteria. ------------------------------------------------------------------...

==================================================================================== gzip   ==================================================================================== tar (.tar) - Tape Archive Take multiple files and compress them into a single ...

Pluggable Authentication Modules (PAM) PAM is essentially an authentication system that allows for different modules to be added for support of different authentication methods, as an example; 2fa would be handled by PAM on a Linux system. /etc/security/ ==...

==================================================================================== Linux File Permissions Every file in Linux has permissions, these define which actions can be undertaken by the user,group, and other. As seen on the file below, permission...

Locale In Linux, a locale is a set of environment variables that defines the language, country, and character encoding settings for a user's environment. Locales affect various aspects of a program's behavior, such as the way dates and times are displayed, th...

View current RAM configuration lsmem View current RAM usage (human readable) free -h Older systems might not like -h, you can also run the command without it.

==================================================================================== SSL Validation   ----------------------------------------------------------------------------------------------------------------------------------------------- CNAME DNS V...

------------------------------------------------------------------------------------------------------------------------------------------------ Quick fixes DCV Required Port: 53 UDP   AutoSSL detecting an internal IP? Check using cpdig command: /scripts/...

==================================================================================== Online Tools There are various online tools which can be used for SSL validation, here are a few:   SSL Checker   WhyNoPadlock   QuaysSSL lab   -------------------------...

ANS Portal > Servers > Load Balancers Services: haproxy   Warden  /var/log/warden/warden.log   Keepalived – manages which side of lb the IPs are located on                                    /var/log/syslog 

https://rpms.remirepo.net/wizard/ 

------------------------------------------------------------------------------------------------------------------------------------------------ FOR LOOPS For loops are a fundamental programming construct used to execute a block of code repeatedly. They are ...

Bextract 1. Get list of volumes from TechDB To get an idea of what files you'll need, you need to examine the TechDB Backups tab. For each backup, a line will be printed which starts "Volume name(s):" - this should be in the following format: srv-7813711322...

==================================================================================== XMLRPC Identifying the total number of xmlrpc requests: grep -i 'xmlrpc' /path/to/access/log | cut -d ':' -f1 | sort | uniq -c | wc -l ------------------------------------...

==================================================================================== Backup Server Setup (via automation) USEFUL LINKS: https://kb.ukfast.net/Backup_Server_Install   https://linuxinstaller-man4.devops.ukfast.co.uk/dashboard/  https://linuxi...

==================================================================================== KVM ------------------------------------------------------------------------------------------------------------------------------------------  Useful Links:  KVM KB  ---...

------------------------------------------------------------------------------------------------------------------------------------------------ Monitoring IPs (Zabbix): MAN4: 81.201.136.209 MAN5: 46.37.163.173   MAN5-Proxy: 46.37.163.133 81.201.136.192/2...