Virtual TapeServer 6.04.01 Operations and Administration Guide
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TCP/IP Ports and Protocols
This appendix describes the ports and protocols that are used by VTS. 
Note Not all ports are used on all VTS servers; port use varies according to the VTS 
configuration. 
Port Protocol Comment
ICMP Type 8 Used by ping and tracert on Windows, for remote testing 
and VTS networking.
21 TCP, UDP, FTP This port and other ephemeral ports are used if the client is 
configured for passive (PASV) mode.
22 TCP, UDP, SSH Used by SCP, which is used by AutoCopy, Instant DR, and 
SecureVTS if these services are configured.
23 TCP, UDP, 
TELNET
Used for Telnet remote access.
80 TCP, UDP, 
HTTP
Used by the VTS web interface (HTTP).
111 TCP, UDP Used by VTS when using NFS services.
123 TCP, UDP, NTP Used to synchronize the VTS clock.
443 TCP, UDP, 
HTTPS
Not used by VTS in any supported configuration.
449 TCP Used by TapeMountServer (TMS).
514  TCP Used for remote command execution (RSH).
873 TCP, UDP Used by rsync, which enables AutoCopy and Instant DR to 
transfer files, if these services are configured.
2049 TCP, UDP Used for NFS file sharing.
5432 TCP, UDP Used by the internal (Postgres) database
7295 TCP Used by TMS.
7297 TCP










