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Insecure Protocols and Services

Insecure Protocols

The following are also some of the protocols that are considered insecure:

  • Rlogin: https://linux.die.net/man/1/rlogin
  • Rsh: https://linux.die.net/man/1/rsh
  • Finger: https://linux.die.net/man/1/finger

Insecure Services

The following services should be carefully implemented and not exposed to untrusted networks:

  • Authd (or Identd): https://linux.die.net/man/3/ident
  • Netdump: https://linux.die.net/man/8/netdump
  • Netdump-server: https://linux.die.net/man/8/netdump-server
  • Nfs: https://linux.die.net/man/5/nfs
  • Rwhod: https://linux.die.net/man/8/rwhod
  • Sendmail: https://linux.die.net/man/8/sendmail.sendmail
  • Samba: https://linux.die.net/man/7/samba
  • Yppasswdd: https://linux.die.net/man/8/yppasswdd
  • Ypserv: https://linux.die.net/man/8/ypserv
  • Ypxfrd: https://linux.die.net/man/8/ypxfrd