- Prey project - device lost and found
- Neovim
- sysstat (sar)
- surfraw
- parallel
- gawk
- gpg for ssh
- VMware ESXi
- hwrng for entropy
- Colo your own servers
- /etc/securetty + PAM for passwordless root login on the actual console
- Kerb 5, LDAP, RADIUS
- SNMP
- Nagios-compatible collectors