Apps
Resources
Backup
- rsync: backup tool
# a is for archive, v for verbose, h for human and p for partial
rsync -avhp src/ dest/
Resources
- Rclone: a tool to manage backup with cloud providers
- Object Storage - Scaleway: how to use Object Storage and Rclone with Scaleway
- Encrypted Object Storage - Scaleway: how to use object storage with encrypted buckets
Block connections on 22 port
Use the tool endlessh
FileSystem
Create swap memory
- First, you need to create the file:
sudo dd if=/dev/zero of=/swapfile bs=1024 count=1000000
- Then, format the swap file:
sudo mkswap /swapfile
- After that, restrict the permission:
sudo chmod 600 /swapfile
- Activate the swap:
sudo swapon /swapfile
- (Optional) Depending if you need to have it online when you restart the computer, you need to edit
/etc/fstabas follow:
# FS mountpoint type option(s) dump pass
/path/to/swap none swap sw 0 0
Resources
- ZFS partition: how to create a ZFS partition
Firewall
Resources
Nginx
Resources
- Proxy_pass: tutorial about nginx
proxy_passdirective
SSH
Chroot jail
Definition
Use chroot jail wit SSH. It allows to isolate a user through ssh in a specific directory with limited commands.
Resources
- chroot jail: how to build a Chroot jail
- Bastion SSH (FR): how to create a SSH bastion
- Visual Guide to SSH Tunnels
VPN
Resources
- Buil a VPN with Wireguard: Fedora magazine post about how to build aVPN with Wireguard
Sudo & su
Su
- Execute a command with the default shell for a specific user
su <user> -c <command> - Execute a specific shell for a specific user
su <user> -s <shell>