SSH: Misc Cheat Sheet

# Enforce a umask with SFTP

Subsystem sftp /usr/libexec/openssh/sftp-server -u 0002

# Parallel SSH on Debian

apt-get install pssh

=> using

pssh -h host_list.txt <command>
pssh -i -t 60 -h host_list.txt -- <command>   # 60s timeout, list output

# Clustered SSH on Debian

apt-get install clusterssh

=> using

cssh server1 server2

# Vim Remote File Editing:

vim scp:[email protected]//some/directory/file.txt

# Use GPG keys with SSH agent

monkeysphere subkey-to-ssh-agent -t 3600