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@githubfoam
githubfoam / Gluster Cheat Sheet
Last active September 11, 2025 20:44
Gluster Cheat Sheet
Brick –> is basic storage (directory) on a server in the trusted storage pool.
Volume –> is a logical collection of bricks.
Cluster –> is a group of linked computers, working together as a single computer.
Distributed File System –> A filesystem in which the data is spread across the multiple storage nodes and allows the clients to access it over a network.
Client –> is a machine which mounts the volume.
Server –> is a machine where the actual file system is hosted in which the data will be stored.
Replicate –> Making multiple copies of data to achieve high redundancy.
Fuse –> is a loadable kernel module that lets non-privileged users create their own file systems without editing kernel code.
glusterd –> is a daemon that runs on all servers in the trusted storage pool.
RAID –> Redundant Array of Inexpensive Disks (RAID) is a technology that provides increased storage reliability through redundancy
@sparkcodeuk
sparkcodeuk / floating-ip-gateway.sh
Created March 2, 2018 21:47
Digital Ocean floating IP gateway script (force droplet to use the assigned floating IP for outbound traffic as well as inbound traffic)
#!/bin/bash
# Force outbound traffic through the attached floating IP
NET_INT="eth0"
CURL_TIMEOUT=3
echo -n "Setting floating IP as the default gateway: "
# Check there's a floating IP attached to this droplet
if [ "$(curl -s --connect-timeout $CURL_TIMEOUT http://169.254.169.254/metadata/v1/floating_ip/ipv4/active)" != "true" ]; then
##
## How to install mcrypt in php7.2 / php7.3
## Linux / MacOS / OSX
##
## https://lukasmestan.com/install-mcrypt-extension-in-php7-2/
#
@volure
volure / SSH: Self Sign Postfix
Last active October 25, 2024 21:10
Create a Self Signed Postfix Certificate
# copied from https://www.e-rave.nl/create-a-self-signed-ssl-key-for-postfix
openssl genrsa -des3 -out mail.domain.tld.key 2048
chmod 600 mail.domain.tld.key
openssl req -new -key mail.domain.tld.key -out mail.domain.tld.csr
openssl x509 -req -days 365 -in mail.domain.tld.csr -signkey mail.domain.tld.key -out mail.domain.tld.crt
openssl rsa -in mail.domain.tld.key -out mail.domain.tld.key.nopass
mv mail.domain.tld.key.nopass mail.domain.tld.key
openssl req -new -x509 -extensions v3_ca -keyout cakey.pem -out cacert.pem -days 3650
chmod 600 mail.domain.tld.key
@davewongillies
davewongillies / OpenSSL Cheatsheet.md
Last active November 19, 2025 19:20
OpenSSL Cheatsheet

General OpenSSL Commands

These commands allow you to generate CSRs, Certificates, Private Keys and do other miscellaneous tasks.

Generate a new private key and Certificate Signing Request

openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout privateKey.key