Interesting ports on 192.168.1.200:
PORT     STATE SERVICE              VERSION
21/tcp   open  ftp                  ProFTPD 1.3.0
22/tcp   open  ssh                  OpenSSH 4.3p2 Debian 8ubuntu1.4 (protocol 2.0)
25/tcp   open  smtp                 Postfix smtpd
110/tcp  open  pop3                 Cyrus POP3 2.2.13-Debian-2.2.13-1
111/tcp  open  rpcbind (rpcbind V2) 2 (rpc #100000)
143/tcp  open  imap                 Cyrus IMAP4 2.2.13-Debian-2.2.13-1
389/tcp  open  ldap                 (Anonymous bind OK)
465/tcp  open  smtp                 Postfix smtpd
869/tcp  open  mountd (mountd V1-3) 1-3 (rpc #100005)
993/tcp  open  imap                 Cyrus imapd
2049/tcp open  nfs (nfs V2-4)        2-4 (rpc #100003)
MAC Address: 00:aa:ff:ee:01:23 (Fortytwo Systems)
Service Info: Host:  alpha.example.com; OSs: Unix, Linux