SSH
last edited Sat, 20 Jul 2024 12:26:17 GMT
backlinks:
rsync
backups
SSH (Secure Shell)
generating ssh-keys direct link to this section
ssh-keygen -o
ssh-keygen -t ed25519
It is using an elliptic curve signature scheme, which offers better security than ECDSA and DSA. At the same time, it also has good performance.
checking for existing keys direct link to this section
lzrd@DESKTOP-B0F3S53:~$ ls -la .ssh
if there isn't a .ssh directory then you can just make it mkdir .ssh
host name alias direct link to this section
A good way to save time. Edit this in ../.ssh/ssh_conf
copying your pub key to a remote server direct link to this section
ssh-copy-id sammy@your_server_address
ssh-copy-id -i ~/.ssh/mykey.pub user@host
never import a private key to another machine!
common issues direct link to this section
(public key denied) Sometimes you may need to specify the proper private key to unlock the public key gave out. This occurs if you have tons of different private keys. Oops.
ssh -i .ssh/envs_win envs.net
Alternatively:
ssh -o "IdentitiesOnly=yes" -i <private key filename> <hostname>
Debugging direct link to this section
You can use the -v flag to run in verbose mode.
Aliases direct link to this section
Edit the file in .ssh/config
Host ubserver
Hostname 127.0.0.1
Port 2222
User george
to ssh simply use ssh ubserver
Backups direct link to this section
ID private key and copy the private key ID (number sequence after the slash)
gpg --list-secret-keys --keyid-format LONG
Export the private key before copying to a USB drive
gpg --export-secret-keys $ID > my-private-key.asc
Restoring direct link to this section
exec ssh-agent bash
add key to ssh-agent
ssh-add ~/.ssh/id_rsa
Import key:
gpg --import my-private-key.asc