Port Protocol Service Description
39 tcp/udp rlp Resource Location Protocol SANS Internet Storm Center activity for port 39
39 udp rlp rlp-resource location - resource location protocol SANS Internet Storm Center activity for port 39
41 tcp/udp graphics Graphics SANS Internet Storm Center activity for port 41
42 tcp/udp nameserver Host Name Server - Obsolete nameserver (originally DARPAs trivial name server - replaced by DNS). Is currently used by Microsoft hosts for WINS server for NetBIOS name resolves. May also be still found on some older Unix systems. Disable on all non-MS-WINS hosts. SANS Internet Storm Center activity for port 42
42 udp name name-host name server SANS Internet Storm Center activity for port 42
43 tcp/udp nicname Whois - Is the whois service - used to provide domain-level info. Sites today rarely run whois servers - is mostly just used now by Internic. Somewhat similar in function to finger and can suffer from same data-driven attacks. Disable this port on all hosts. SANS Internet Storm Center activity for port 43
43 udp nicname nicname-who is - nicname SANS Internet Storm Center activity for port 43
44 tcp/udp mpm-flags MPM FLAGS Protocol SANS Internet Storm Center activity for port 44
45 tcp/udp mpm Message Processing Module [recv] SANS Internet Storm Center activity for port 45
46 tcp/udp mpm-snd MPM [default send] SANS Internet Storm Center activity for port 46
47 tcp/udp ni-ftp NI FTP SANS Internet Storm Center activity for port 47
48 tcp/udp auditd Digital Audit Daemon SANS Internet Storm Center activity for port 48
49 tcp/udp tacacs Login Host Protocol (TACACS) - Auth protocol for older terminal server logins. - Security Concerns: Passwords are transmitted in cleartext Previously known as bbn-login. Disable this port on all hosts. SANS Internet Storm Center activity for port 49
50 tcp/udp re-mail-ck Remote Mail Checking Protocol SANS Internet Storm Center activity for port 50
51 tcp/udp la-maint IMP Logical Address Maintenance SANS Internet Storm Center activity for port 51

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Total Records 3780



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