Ports

Listing of common TCP/IP Ports (kind of like /etc/services). Very similar to http://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers

Port	Protocol	Service
25	tcp	smtp
161	udp/tcp	snmp
162	udp/tcp	snmptrap
389	tcp	LDAP
587	tcp	smtp (submit)
623	udp	IPMI
636	tcp	LDAPS
902	tcp	vmware-server-console
993	tcp	imaps
995	tcp	pop3s (pop3 over ssl)
1194	udp/tcp	OpenVPN
1433	tcp	MSSQL
1463	tcp	scribed
1812	udp	RADIUS-auth
1813	udp	RADIUS-accounting
1900	udp	UPnP
2379	tcp	etcd clients
2380	tcp	etcd peers
2703	tcp	razor2
2707	tcp	razor2
2812	tcp	Monit
3142	tcp	apt-cacher-ng
3205	tcp/udp	iSNS
3306	tcp	MySQL
3312	tcp	Sphinx (aka searchd)
3260	tcp	iSCSI
3268	tcp	LDAP (Active Directory)
3389	tcp	Terminal server (RDP)
3689	tcp	Firefly (aka mt-daapd)
4025	tcp	partimaged
4242	tcp	Crashplan
4949	tcp	Munin
4999	tcp	Perlbal
5001	tcp	iperf
5432	tcp	PostgreSQL
5666	tcp	NRPE
5667	tcp	NSCA
5672	tcp	RabbitMQ
5900	tcp	vnc
6081	tcp	Varnish
6082	tcp	Varnish-admin
6277	udp	DCC
6379	tcp	Redis
7000	tcp	Cassandra (cluster comm)
8020	tcp	Hadoop (hdfs)
8140	tcp	Puppet
8651	tcp	Ganglia (gmetad)
8652	tcp	Ganglia (gmetad)
8653	udp/tcp	Ganglia (gmond)
8834	tcp	Nessus
8983	tcp	Solr
9160	tcp	Cassandra (clients like Thrift)
9200	tcp	Elasticsearch
11211	tcp	memcached
16509	tcp	libvirtd-plain
16514	tcp	libvirtd-ssl
24441	udp	pyzor
27017	tcp	MongoDB
28017	tcp	MongoDB-admin