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TCP & UDP well-known port reference for C# and Visual Basic .NET (VB.NET)
Below is a list of well-known TCP and UDP ports used by everyday applications and services.
Some of these ports are known to be used by viruses, and thus detection of heavy or regular pulses of
traffic on these ports can indicate infected machines on a network. To find further information on
common protocols, or read about ways of detecting such traffic on a network, the book Network programming in .NET
should be of invaluable assistance.
Network Lock Manager (nlockmgr) on Sun Solaris.. Uses ldxp service.
Port 4092 tcp
WinCrash
Port 4096 tcp/udp
BRE (Bridge Relay Element). Uses bre service.
Port 4097 tcp/udp
Patrol View. Uses patrolview service.
Port 4098 tcp/udp
drmsfsd. Uses drmsfsd service.
Port 4099 tcp/udp
DPCP. Uses dpcp service.
Port 4100 tcp/udp
IGo Incognito Data Port. Uses igo-incognito service.
Port 4114 tcp/udp
JomaMQMonitor. Uses jomamqmonitor service.
Port 4128 tcp/udp
RCServ
Port 4132 tcp/udp
NUTS Daemon. Uses nuts_dem service.
Port 4133 tcp/udp
NUTS Bootp Server. Uses nuts_bootp service.
Port 4134 tcp/udp
NIFTY-Serve HMI protocol. Uses nifty-hmi service.
Port 4138 tcp/udp
nettest. Uses nettest service.
Port 4141 tcp/udp
Workflow Server. Uses oirtgsvc service.
Port 4142 tcp/udp
Document Server. Uses oidocsvc service.
Port 4143 tcp/udp
Document Replication. Uses oidsr service.
Port 4144 tcp
CIM (Compuserve Information Manager)
Port 4145 tcp/udp
VVR Control. Uses vvr-control service.
Port 4154 tcp/udp
atlinks device discovery. Uses atlinks service.
Port 4160 tcp/udp
Jini Discovery. Uses jini-discovery service.
Port 4199 tcp/udp
EIMS ADMIN. Uses eims-admin service.
Port 4200-4299 tcp/udp
VRML Multi User Systems. Uses vrml-multi-use service.
Port 4242 tcp/udp
This port number is widely used on the netfor MUDs (Multi-User-Dungeons),a type ofchat system. It is also frequently used asan example port in code demonstrationsor as an alternate HTTP port. The reasonthis is so popular is becuase it repeatsthe number 42