Enumerate protocols and services database.
Protocols
Display protocols database.
$ cat /etc/protocols
# Internet (IP) protocols # # Updated from http://www.iana.org/assignments/protocol-numbers and other # sources. # New protocols will be added on request if they have been officially # assigned by IANA and are not historical. # If you need a huge list of used numbers please install the nmap package. ip 0 IP # internet protocol, pseudo protocol number hopopt 0 HOPOPT # IPv6 Hop-by-Hop Option [RFC1883] icmp 1 ICMP # internet control message protocol igmp 2 IGMP # Internet Group Management ggp 3 GGP # gateway-gateway protocol ipencap 4 IP-ENCAP # IP encapsulated in IP (officially ``IP'') st 5 ST # ST datagram mode tcp 6 TCP # transmission control protocol egp 8 EGP # exterior gateway protocol igp 9 IGP # any private interior gateway (Cisco) pup 12 PUP # PARC universal packet protocol udp 17 UDP # user datagram protocol hmp 20 HMP # host monitoring protocol xns-idp 22 XNS-IDP # Xerox NS IDP rdp 27 RDP # "reliable datagram" protocol iso-tp4 29 ISO-TP4 # ISO Transport Protocol class 4 [RFC905] dccp 33 DCCP # Datagram Congestion Control Prot. [RFC4340] xtp 36 XTP # Xpress Transfer Protocol ddp 37 DDP # Datagram Delivery Protocol idpr-cmtp 38 IDPR-CMTP # IDPR Control Message Transport ipv6 41 IPv6 # Internet Protocol, version 6 ipv6-route 43 IPv6-Route # Routing Header for IPv6 ipv6-frag 44 IPv6-Frag # Fragment Header for IPv6 idrp 45 IDRP # Inter-Domain Routing Protocol rsvp 46 RSVP # Reservation Protocol gre 47 GRE # General Routing Encapsulation esp 50 IPSEC-ESP # Encap Security Payload [RFC2406] ah 51 IPSEC-AH # Authentication Header [RFC2402] skip 57 SKIP # SKIP ipv6-icmp 58 IPv6-ICMP # ICMP for IPv6 ipv6-nonxt 59 IPv6-NoNxt # No Next Header for IPv6 ipv6-opts 60 IPv6-Opts # Destination Options for IPv6 rspf 73 RSPF CPHB # Radio Shortest Path First (officially CPHB) vmtp 81 VMTP # Versatile Message Transport eigrp 88 EIGRP # Enhanced Interior Routing Protocol (Cisco) ospf 89 OSPFIGP # Open Shortest Path First IGP ax.25 93 AX.25 # AX.25 frames ipip 94 IPIP # IP-within-IP Encapsulation Protocol etherip 97 ETHERIP # Ethernet-within-IP Encapsulation [RFC3378] encap 98 ENCAP # Yet Another IP encapsulation [RFC1241] # 99 # any private encryption scheme pim 103 PIM # Protocol Independent Multicast ipcomp 108 IPCOMP # IP Payload Compression Protocol vrrp 112 VRRP # Virtual Router Redundancy Protocol [RFC5798] l2tp 115 L2TP # Layer Two Tunneling Protocol [RFC2661] isis 124 ISIS # IS-IS over IPv4 sctp 132 SCTP # Stream Control Transmission Protocol fc 133 FC # Fibre Channel mobility-header 135 Mobility-Header # Mobility Support for IPv6 [RFC3775] udplite 136 UDPLite # UDP-Lite [RFC3828] mpls-in-ip 137 MPLS-in-IP # MPLS-in-IP [RFC4023] manet 138 # MANET Protocols [RFC5498] hip 139 HIP # Host Identity Protocol shim6 140 Shim6 # Shim6 Protocol [RFC5533] wesp 141 WESP # Wrapped Encapsulating Security Payload rohc 142 ROHC # Robust Header Compression
Enamurate protocols database.
$ getent protocols
ip 0 IP hopopt 0 HOPOPT icmp 1 ICMP igmp 2 IGMP ggp 3 GGP ipencap 4 IP-ENCAP st 5 ST tcp 6 TCP egp 8 EGP igp 9 IGP pup 12 PUP udp 17 UDP hmp 20 HMP xns-idp 22 XNS-IDP rdp 27 RDP iso-tp4 29 ISO-TP4 dccp 33 DCCP xtp 36 XTP ddp 37 DDP idpr-cmtp 38 IDPR-CMTP ipv6 41 IPv6 ipv6-route 43 IPv6-Route ipv6-frag 44 IPv6-Frag idrp 45 IDRP rsvp 46 RSVP gre 47 GRE esp 50 IPSEC-ESP ah 51 IPSEC-AH skip 57 SKIP ipv6-icmp 58 IPv6-ICMP ipv6-nonxt 59 IPv6-NoNxt ipv6-opts 60 IPv6-Opts rspf 73 RSPF CPHB vmtp 81 VMTP eigrp 88 EIGRP ospf 89 OSPFIGP ax.25 93 AX.25 ipip 94 IPIP etherip 97 ETHERIP encap 98 ENCAP pim 103 PIM ipcomp 108 IPCOMP vrrp 112 VRRP l2tp 115 L2TP isis 124 ISIS sctp 132 SCTP fc 133 FC mobility-header 135 Mobility-Header udplite 136 UDPLite mpls-in-ip 137 MPLS-in-IP manet 138 hip 139 HIP shim6 140 Shim6 wesp 141 WESP rohc 142 ROHC
Display specific protocol.
$ getent protocols l2tp
l2tp 115 L2TP
Services
Display services database.
$ cat /etc/services
# Network services, Internet style # # Updated from https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml . # # New ports will be added on request if they have been officially assigned # by IANA and used in the real-world or are needed by a debian package. # If you need a huge list of used numbers please install the nmap package. tcpmux 1/tcp # TCP port service multiplexer echo 7/tcp echo 7/udp discard 9/tcp sink null discard 9/udp sink null systat 11/tcp users daytime 13/tcp daytime 13/udp netstat 15/tcp qotd 17/tcp quote chargen 19/tcp ttytst source chargen 19/udp ttytst source ftp-data 20/tcp ftp 21/tcp fsp 21/udp fspd ssh 22/tcp # SSH Remote Login Protocol telnet 23/tcp smtp 25/tcp mail time 37/tcp timserver time 37/udp timserver whois 43/tcp nicname tacacs 49/tcp # Login Host Protocol (TACACS) tacacs 49/udp domain 53/tcp # Domain Name Server domain 53/udp bootps 67/udp bootpc 68/udp tftp 69/udp gopher 70/tcp # Internet Gopher finger 79/tcp http 80/tcp www # WorldWideWeb HTTP kerberos 88/tcp kerberos5 krb5 kerberos-sec # Kerberos v5 kerberos 88/udp kerberos5 krb5 kerberos-sec # Kerberos v5 iso-tsap 102/tcp tsap # part of ISODE acr-nema 104/tcp dicom # Digital Imag. & Comm. 300 pop3 110/tcp pop-3 # POP version 3 sunrpc 111/tcp portmapper # RPC 4.0 portmapper sunrpc 111/udp portmapper auth 113/tcp authentication tap ident nntp 119/tcp readnews untp # USENET News Transfer Protocol ntp 123/udp # Network Time Protocol epmap 135/tcp loc-srv # DCE endpoint resolution netbios-ns 137/udp # NETBIOS Name Service netbios-dgm 138/udp # NETBIOS Datagram Service netbios-ssn 139/tcp # NETBIOS session service imap2 143/tcp imap # Interim Mail Access P 2 and 4 snmp 161/tcp # Simple Net Mgmt Protocol snmp 161/udp snmp-trap 162/tcp snmptrap # Traps for SNMP snmp-trap 162/udp snmptrap cmip-man 163/tcp # ISO mgmt over IP (CMOT) cmip-man 163/udp cmip-agent 164/tcp cmip-agent 164/udp mailq 174/tcp # Mailer transport queue for Zmailer xdmcp 177/udp # X Display Manager Control Protocol bgp 179/tcp # Border Gateway Protocol smux 199/tcp # SNMP Unix Multiplexer qmtp 209/tcp # Quick Mail Transfer Protocol z3950 210/tcp wais # NISO Z39.50 database ipx 213/udp # IPX [RFC1234] ptp-event 319/udp ptp-general 320/udp pawserv 345/tcp # Perf Analysis Workbench zserv 346/tcp # Zebra server rpc2portmap 369/tcp rpc2portmap 369/udp # Coda portmapper codaauth2 370/tcp codaauth2 370/udp # Coda authentication server clearcase 371/udp Clearcase ldap 389/tcp # Lightweight Directory Access Protocol ldap 389/udp svrloc 427/tcp # Server Location svrloc 427/udp https 443/tcp # http protocol over TLS/SSL https 443/udp # HTTP/3 snpp 444/tcp # Simple Network Paging Protocol microsoft-ds 445/tcp # Microsoft Naked CIFS kpasswd 464/tcp kpasswd 464/udp submissions 465/tcp ssmtp smtps urd # Submission over TLS [RFC8314] saft 487/tcp # Simple Asynchronous File Transfer isakmp 500/udp # IPSEC key management rtsp 554/tcp # Real Time Stream Control Protocol rtsp 554/udp nqs 607/tcp # Network Queuing system asf-rmcp 623/udp # ASF Remote Management and Control Protocol qmqp 628/tcp ipp 631/tcp # Internet Printing Protocol ldp 646/tcp # Label Distribution Protocol ldp 646/udp # # UNIX specific services # exec 512/tcp biff 512/udp comsat login 513/tcp who 513/udp whod shell 514/tcp cmd syslog # no passwords used syslog 514/udp printer 515/tcp spooler # line printer spooler talk 517/udp ntalk 518/udp route 520/udp router routed # RIP gdomap 538/tcp # GNUstep distributed objects gdomap 538/udp uucp 540/tcp uucpd # uucp daemon klogin 543/tcp # Kerberized `rlogin' (v5) kshell 544/tcp krcmd # Kerberized `rsh' (v5) dhcpv6-client 546/udp dhcpv6-server 547/udp afpovertcp 548/tcp # AFP over TCP nntps 563/tcp snntp # NNTP over SSL submission 587/tcp # Submission [RFC4409] ldaps 636/tcp # LDAP over SSL ldaps 636/udp tinc 655/tcp # tinc control port tinc 655/udp silc 706/tcp kerberos-adm 749/tcp # Kerberos `kadmin' (v5) # domain-s 853/tcp # DNS over TLS [RFC7858] domain-s 853/udp # DNS over DTLS [RFC8094] rsync 873/tcp ftps-data 989/tcp # FTP over SSL (data) ftps 990/tcp telnets 992/tcp # Telnet over SSL imaps 993/tcp # IMAP over SSL pop3s 995/tcp # POP-3 over SSL # # From ``Assigned Numbers'': # #> The Registered Ports are not controlled by the IANA and on most systems #> can be used by ordinary user processes or programs executed by ordinary #> users. # #> Ports are used in the TCP [45,106] to name the ends of logical #> connections which carry long term conversations. For the purpose of #> providing services to unknown callers, a service contact port is #> defined. This list specifies the port used by the server process as its #> contact port. While the IANA can not control uses of these ports it #> does register or list uses of these ports as a convienence to the #> community. # socks 1080/tcp # socks proxy server proofd 1093/tcp rootd 1094/tcp openvpn 1194/tcp openvpn 1194/udp rmiregistry 1099/tcp # Java RMI Registry lotusnote 1352/tcp lotusnotes # Lotus Note ms-sql-s 1433/tcp # Microsoft SQL Server ms-sql-m 1434/udp # Microsoft SQL Monitor ingreslock 1524/tcp datametrics 1645/tcp old-radius datametrics 1645/udp old-radius sa-msg-port 1646/tcp old-radacct sa-msg-port 1646/udp old-radacct kermit 1649/tcp groupwise 1677/tcp l2f 1701/udp l2tp radius 1812/tcp radius 1812/udp radius-acct 1813/tcp radacct # Radius Accounting radius-acct 1813/udp radacct cisco-sccp 2000/tcp # Cisco SCCP nfs 2049/tcp # Network File System nfs 2049/udp # Network File System gnunet 2086/tcp gnunet 2086/udp rtcm-sc104 2101/tcp # RTCM SC-104 IANA 1/29/99 rtcm-sc104 2101/udp gsigatekeeper 2119/tcp gris 2135/tcp # Grid Resource Information Server cvspserver 2401/tcp # CVS client/server operations venus 2430/tcp # codacon port venus 2430/udp # Venus callback/wbc interface venus-se 2431/tcp # tcp side effects venus-se 2431/udp # udp sftp side effect codasrv 2432/tcp # not used codasrv 2432/udp # server port codasrv-se 2433/tcp # tcp side effects codasrv-se 2433/udp # udp sftp side effect mon 2583/tcp # MON traps mon 2583/udp dict 2628/tcp # Dictionary server f5-globalsite 2792/tcp gsiftp 2811/tcp gpsd 2947/tcp gds-db 3050/tcp gds_db # InterBase server icpv2 3130/udp icp # Internet Cache Protocol isns 3205/tcp # iSNS Server Port isns 3205/udp # iSNS Server Port iscsi-target 3260/tcp mysql 3306/tcp ms-wbt-server 3389/tcp nut 3493/tcp # Network UPS Tools nut 3493/udp distcc 3632/tcp # distributed compiler daap 3689/tcp # Digital Audio Access Protocol svn 3690/tcp subversion # Subversion protocol suucp 4031/tcp # UUCP over SSL sysrqd 4094/tcp # sysrq daemon sieve 4190/tcp # ManageSieve Protocol epmd 4369/tcp # Erlang Port Mapper Daemon remctl 4373/tcp # Remote Authenticated Command Service f5-iquery 4353/tcp # F5 iQuery ntske 4460/tcp # Network Time Security Key Establishment ipsec-nat-t 4500/udp # IPsec NAT-Traversal [RFC3947] iax 4569/udp # Inter-Asterisk eXchange mtn 4691/tcp # monotone Netsync Protocol radmin-port 4899/tcp # RAdmin Port sip 5060/tcp # Session Initiation Protocol sip 5060/udp sip-tls 5061/tcp sip-tls 5061/udp xmpp-client 5222/tcp jabber-client # Jabber Client Connection xmpp-server 5269/tcp jabber-server # Jabber Server Connection cfengine 5308/tcp mdns 5353/udp # Multicast DNS postgresql 5432/tcp postgres # PostgreSQL Database freeciv 5556/tcp rptp # Freeciv gameplay amqps 5671/tcp # AMQP protocol over TLS/SSL amqp 5672/tcp amqp 5672/sctp x11 6000/tcp x11-0 # X Window System x11-1 6001/tcp x11-2 6002/tcp x11-3 6003/tcp x11-4 6004/tcp x11-5 6005/tcp x11-6 6006/tcp x11-7 6007/tcp gnutella-svc 6346/tcp # gnutella gnutella-svc 6346/udp gnutella-rtr 6347/tcp # gnutella gnutella-rtr 6347/udp redis 6379/tcp sge-qmaster 6444/tcp sge_qmaster # Grid Engine Qmaster Service sge-execd 6445/tcp sge_execd # Grid Engine Execution Service mysql-proxy 6446/tcp # MySQL Proxy babel 6696/udp # Babel Routing Protocol ircs-u 6697/tcp # Internet Relay Chat via TLS/SSL bbs 7000/tcp afs3-fileserver 7000/udp afs3-callback 7001/udp # callbacks to cache managers afs3-prserver 7002/udp # users & groups database afs3-vlserver 7003/udp # volume location database afs3-kaserver 7004/udp # AFS/Kerberos authentication afs3-volser 7005/udp # volume managment server afs3-bos 7007/udp # basic overseer process afs3-update 7008/udp # server-to-server updater afs3-rmtsys 7009/udp # remote cache manager service font-service 7100/tcp xfs # X Font Service http-alt 8080/tcp webcache # WWW caching service puppet 8140/tcp # The Puppet master service bacula-dir 9101/tcp # Bacula Director bacula-fd 9102/tcp # Bacula File Daemon bacula-sd 9103/tcp # Bacula Storage Daemon xmms2 9667/tcp # Cross-platform Music Multiplexing System nbd 10809/tcp # Linux Network Block Device zabbix-agent 10050/tcp # Zabbix Agent zabbix-trapper 10051/tcp # Zabbix Trapper amanda 10080/tcp # amanda backup services dicom 11112/tcp hkp 11371/tcp # OpenPGP HTTP Keyserver db-lsp 17500/tcp # Dropbox LanSync Protocol dcap 22125/tcp # dCache Access Protocol gsidcap 22128/tcp # GSI dCache Access Protocol wnn6 22273/tcp # wnn6 # # Datagram Delivery Protocol services # rtmp 1/ddp # Routing Table Maintenance Protocol nbp 2/ddp # Name Binding Protocol echo 4/ddp # AppleTalk Echo Protocol zip 6/ddp # Zone Information Protocol #========================================================================= # The remaining port numbers are not as allocated by IANA. #========================================================================= # Kerberos (Project Athena/MIT) services kerberos4 750/udp kerberos-iv kdc # Kerberos (server) kerberos4 750/tcp kerberos-iv kdc kerberos-master 751/udp kerberos_master # Kerberos authentication kerberos-master 751/tcp passwd-server 752/udp passwd_server # Kerberos passwd server krb-prop 754/tcp krb_prop krb5_prop hprop # Kerberos slave propagation zephyr-srv 2102/udp # Zephyr server zephyr-clt 2103/udp # Zephyr serv-hm connection zephyr-hm 2104/udp # Zephyr hostmanager iprop 2121/tcp # incremental propagation supfilesrv 871/tcp # Software Upgrade Protocol server supfiledbg 1127/tcp # Software Upgrade Protocol debugging # # Services added for the Debian GNU/Linux distribution # poppassd 106/tcp # Eudora moira-db 775/tcp moira_db # Moira database moira-update 777/tcp moira_update # Moira update protocol moira-ureg 779/udp moira_ureg # Moira user registration spamd 783/tcp # spamassassin daemon skkserv 1178/tcp # skk jisho server port predict 1210/udp # predict -- satellite tracking rmtcfg 1236/tcp # Gracilis Packeten remote config server xtel 1313/tcp # french minitel xtelw 1314/tcp # french minitel zebrasrv 2600/tcp # zebra service zebra 2601/tcp # zebra vty ripd 2602/tcp # ripd vty (zebra) ripngd 2603/tcp # ripngd vty (zebra) ospfd 2604/tcp # ospfd vty (zebra) bgpd 2605/tcp # bgpd vty (zebra) ospf6d 2606/tcp # ospf6d vty (zebra) ospfapi 2607/tcp # OSPF-API isisd 2608/tcp # ISISd vty (zebra) fax 4557/tcp # FAX transmission service (old) hylafax 4559/tcp # HylaFAX client-server protocol (new) munin 4949/tcp lrrd # Munin rplay 5555/udp # RPlay audio service nrpe 5666/tcp # Nagios Remote Plugin Executor nsca 5667/tcp # Nagios Agent - NSCA canna 5680/tcp # cannaserver syslog-tls 6514/tcp # Syslog over TLS [RFC5425] sane-port 6566/tcp sane saned # SANE network scanner daemon ircd 6667/tcp # Internet Relay Chat zope-ftp 8021/tcp # zope management by ftp tproxy 8081/tcp # Transparent Proxy omniorb 8088/tcp # OmniORB clc-build-daemon 8990/tcp # Common lisp build daemon xinetd 9098/tcp git 9418/tcp # Git Version Control System zope 9673/tcp # zope server webmin 10000/tcp kamanda 10081/tcp # amanda backup services (Kerberos) amandaidx 10082/tcp # amanda backup services amidxtape 10083/tcp # amanda backup services sgi-cmsd 17001/udp # Cluster membership services daemon sgi-crsd 17002/udp sgi-gcd 17003/udp # SGI Group membership daemon sgi-cad 17004/tcp # Cluster Admin daemon binkp 24554/tcp # binkp fidonet protocol asp 27374/tcp # Address Search Protocol asp 27374/udp csync2 30865/tcp # cluster synchronization tool dircproxy 57000/tcp # Detachable IRC Proxy tfido 60177/tcp # fidonet EMSI over telnet fido 60179/tcp # fidonet EMSI over TCP # Local services
Enamurate services database.
$ getent services
tcpmux 1/tcp echo 7/tcp echo 7/udp discard 9/tcp sink null discard 9/udp sink null systat 11/tcp users daytime 13/tcp daytime 13/udp netstat 15/tcp qotd 17/tcp quote chargen 19/tcp ttytst source chargen 19/udp ttytst source ftp-data 20/tcp ftp 21/tcp fsp 21/udp fspd ssh 22/tcp telnet 23/tcp smtp 25/tcp mail time 37/tcp timserver time 37/udp timserver whois 43/tcp nicname tacacs 49/tcp tacacs 49/udp domain 53/tcp domain 53/udp bootps 67/udp bootpc 68/udp tftp 69/udp gopher 70/tcp finger 79/tcp http 80/tcp www kerberos 88/tcp kerberos5 krb5 kerberos-sec kerberos 88/udp kerberos5 krb5 kerberos-sec iso-tsap 102/tcp tsap acr-nema 104/tcp dicom pop3 110/tcp pop-3 sunrpc 111/tcp portmapper sunrpc 111/udp portmapper auth 113/tcp authentication tap ident nntp 119/tcp readnews untp ntp 123/udp epmap 135/tcp loc-srv netbios-ns 137/udp netbios-dgm 138/udp netbios-ssn 139/tcp imap2 143/tcp imap snmp 161/tcp snmp 161/udp snmp-trap 162/tcp snmptrap snmp-trap 162/udp snmptrap cmip-man 163/tcp cmip-man 163/udp cmip-agent 164/tcp cmip-agent 164/udp mailq 174/tcp xdmcp 177/udp bgp 179/tcp smux 199/tcp qmtp 209/tcp z3950 210/tcp wais ipx 213/udp ptp-event 319/udp ptp-general 320/udp pawserv 345/tcp zserv 346/tcp rpc2portmap 369/tcp rpc2portmap 369/udp codaauth2 370/tcp codaauth2 370/udp clearcase 371/udp Clearcase ldap 389/tcp ldap 389/udp svrloc 427/tcp svrloc 427/udp https 443/tcp https 443/udp snpp 444/tcp microsoft-ds 445/tcp kpasswd 464/tcp kpasswd 464/udp submissions 465/tcp ssmtp smtps urd saft 487/tcp isakmp 500/udp rtsp 554/tcp rtsp 554/udp nqs 607/tcp asf-rmcp 623/udp qmqp 628/tcp ipp 631/tcp ldp 646/tcp ldp 646/udp exec 512/tcp biff 512/udp comsat login 513/tcp who 513/udp whod shell 514/tcp cmd syslog syslog 514/udp printer 515/tcp spooler talk 517/udp ntalk 518/udp route 520/udp router routed gdomap 538/tcp gdomap 538/udp uucp 540/tcp uucpd klogin 543/tcp kshell 544/tcp krcmd dhcpv6-client 546/udp dhcpv6-server 547/udp afpovertcp 548/tcp nntps 563/tcp snntp submission 587/tcp ldaps 636/tcp ldaps 636/udp tinc 655/tcp tinc 655/udp silc 706/tcp kerberos-adm 749/tcp domain-s 853/tcp domain-s 853/udp rsync 873/tcp ftps-data 989/tcp ftps 990/tcp telnets 992/tcp imaps 993/tcp pop3s 995/tcp socks 1080/tcp proofd 1093/tcp rootd 1094/tcp openvpn 1194/tcp openvpn 1194/udp rmiregistry 1099/tcp lotusnote 1352/tcp lotusnotes ms-sql-s 1433/tcp ms-sql-m 1434/udp ingreslock 1524/tcp datametrics 1645/tcp old-radius datametrics 1645/udp old-radius sa-msg-port 1646/tcp old-radacct sa-msg-port 1646/udp old-radacct kermit 1649/tcp groupwise 1677/tcp l2f 1701/udp l2tp radius 1812/tcp radius 1812/udp radius-acct 1813/tcp radacct radius-acct 1813/udp radacct cisco-sccp 2000/tcp nfs 2049/tcp nfs 2049/udp gnunet 2086/tcp gnunet 2086/udp rtcm-sc104 2101/tcp rtcm-sc104 2101/udp gsigatekeeper 2119/tcp gris 2135/tcp cvspserver 2401/tcp venus 2430/tcp venus 2430/udp venus-se 2431/tcp venus-se 2431/udp codasrv 2432/tcp codasrv 2432/udp codasrv-se 2433/tcp codasrv-se 2433/udp mon 2583/tcp mon 2583/udp dict 2628/tcp f5-globalsite 2792/tcp gsiftp 2811/tcp gpsd 2947/tcp gds-db 3050/tcp gds_db icpv2 3130/udp icp isns 3205/tcp isns 3205/udp iscsi-target 3260/tcp mysql 3306/tcp ms-wbt-server 3389/tcp nut 3493/tcp nut 3493/udp distcc 3632/tcp daap 3689/tcp svn 3690/tcp subversion suucp 4031/tcp sysrqd 4094/tcp sieve 4190/tcp epmd 4369/tcp remctl 4373/tcp f5-iquery 4353/tcp ntske 4460/tcp ipsec-nat-t 4500/udp iax 4569/udp mtn 4691/tcp radmin-port 4899/tcp sip 5060/tcp sip 5060/udp sip-tls 5061/tcp sip-tls 5061/udp xmpp-client 5222/tcp jabber-client xmpp-server 5269/tcp jabber-server cfengine 5308/tcp mdns 5353/udp postgresql 5432/tcp postgres freeciv 5556/tcp rptp amqps 5671/tcp amqp 5672/tcp amqp 5672/sctp x11 6000/tcp x11-0 x11-1 6001/tcp x11-2 6002/tcp x11-3 6003/tcp x11-4 6004/tcp x11-5 6005/tcp x11-6 6006/tcp x11-7 6007/tcp gnutella-svc 6346/tcp gnutella-svc 6346/udp gnutella-rtr 6347/tcp gnutella-rtr 6347/udp redis 6379/tcp sge-qmaster 6444/tcp sge_qmaster sge-execd 6445/tcp sge_execd mysql-proxy 6446/tcp babel 6696/udp ircs-u 6697/tcp bbs 7000/tcp afs3-fileserver 7000/udp afs3-callback 7001/udp afs3-prserver 7002/udp afs3-vlserver 7003/udp afs3-kaserver 7004/udp afs3-volser 7005/udp afs3-bos 7007/udp afs3-update 7008/udp afs3-rmtsys 7009/udp font-service 7100/tcp xfs http-alt 8080/tcp webcache puppet 8140/tcp bacula-dir 9101/tcp bacula-fd 9102/tcp bacula-sd 9103/tcp xmms2 9667/tcp nbd 10809/tcp zabbix-agent 10050/tcp zabbix-trapper 10051/tcp amanda 10080/tcp dicom 11112/tcp hkp 11371/tcp db-lsp 17500/tcp dcap 22125/tcp gsidcap 22128/tcp wnn6 22273/tcp rtmp 1/ddp nbp 2/ddp echo 4/ddp zip 6/ddp kerberos4 750/udp kerberos-iv kdc kerberos4 750/tcp kerberos-iv kdc kerberos-master 751/udp kerberos_master kerberos-master 751/tcp passwd-server 752/udp passwd_server krb-prop 754/tcp krb_prop krb5_prop hprop zephyr-srv 2102/udp zephyr-clt 2103/udp zephyr-hm 2104/udp iprop 2121/tcp supfilesrv 871/tcp supfiledbg 1127/tcp poppassd 106/tcp moira-db 775/tcp moira_db moira-update 777/tcp moira_update moira-ureg 779/udp moira_ureg spamd 783/tcp skkserv 1178/tcp predict 1210/udp rmtcfg 1236/tcp xtel 1313/tcp xtelw 1314/tcp zebrasrv 2600/tcp zebra 2601/tcp ripd 2602/tcp ripngd 2603/tcp ospfd 2604/tcp bgpd 2605/tcp ospf6d 2606/tcp ospfapi 2607/tcp isisd 2608/tcp fax 4557/tcp hylafax 4559/tcp munin 4949/tcp lrrd rplay 5555/udp nrpe 5666/tcp nsca 5667/tcp canna 5680/tcp syslog-tls 6514/tcp sane-port 6566/tcp sane saned ircd 6667/tcp zope-ftp 8021/tcp tproxy 8081/tcp omniorb 8088/tcp clc-build-daemon 8990/tcp xinetd 9098/tcp git 9418/tcp zope 9673/tcp webmin 10000/tcp kamanda 10081/tcp amandaidx 10082/tcp amidxtape 10083/tcp sgi-cmsd 17001/udp sgi-crsd 17002/udp sgi-gcd 17003/udp sgi-cad 17004/tcp binkp 24554/tcp asp 27374/tcp asp 27374/udp csync2 30865/tcp dircproxy 57000/tcp tfido 60177/tcp fido 60179/tcp
Display specific service.
$ getent protocols freeciv
freeciv 5556/tcp rptp