Port Scanner Tool

Why do you need a port scanner?

A port scanner in the hands of a hacker is like someone going from house to house testing each door and window looking for a way to gain access. A Port Scanner in the hands of a network engineer is like a night watchman making hi rounds to ensure everything is locked and secure.

The SolarWinds Port Scanner will scan your company’s computers looking for open ports. Programs use ports to communicate with the outside world. Different programs use different ports and sometimes leave the ports open after use. A computer can have over 65,000 ports. Many viruses have build-in port scanners that are used to gain access to your computer and your company’s assets. Hackers also use port scanners to probe the security of your internet facing computers. By monitoring the ports on your computer, you can determine which ports are open and which are closed; what is secure and what is at risk.

Customizable Port Scanning

The SolarWinds Port Scanner allows testing for open TCP ports across a range of IP Address concurrently. It can scan on of several standard port ranges or a customer port selection you define. Common port names are included with the program as well as the ability to add custom service names. The SolarWinds Port Scanner is extremely fast and highly configurable, providing for customization of the resulting view. Performance options allow scaling of scans to match machine abilities and/or firewall policies. Included is the ability to export to multiple formats allowing presentation of the data in multiple ways.

Some of the more commonly used network ports include:
Keyword Number Protocol(s) Description
tcpmux 1 TCP, UDP TCP Port Service Multiplexer
echo 7 TCP, UDP Echo
discard 9 TCP, UDP Discard
systat 11 TCP Active Users
daytime 13 TCP, UDP Daytime (RFC 867)
qotd 17 TCP Quote of the Day
msp 18 TCP, UDP message send protocol
chargen 19 TCP, UDP Character Generator
ftp-data 20 TCP, UDP File transfer default data
ftp 21 TCP, UDP File transfer control
ssh 22 TCP, UDP Remote login protocol
telnet 23 TCP, UDP Telnet
smtp 25 TCP, UDP Simple Mail Transfer
time 37 TCP, UDP Time
rlp 39 TCP, UDP Resource location protocol
nameserver 42 TCP, UDP Host name server
whois 43 TCP, UDP Who is
re-mail-ck 50 TCP, UDP Remote mail checking protocol
domain 53 TCP, UDP Domain name server
bootps 67 TCP, UDP Bootstrap protocol server
bootpc 68 TCP, UDP Bootstrap protocol client
tftp 69 TCP, UDP Trivial file transfer protocol
gopher 70 TCP, UDP Gopher
finger 79 TCP, UDP Finger
www 80 TCP, UDP World wide web or HTTP
kerberos 88 TCP, UDP Kerberos
supdup 95 TCP, UDP SUPDUP
hostname 101 TCP, UDP NIC Host Name Server
iso-tsap 102 TCP, UDP ISO-TSAP Class 0
csnet-ns 105 TCP, UDP CCSO name server protocol
rtelnet 107 TCP, UDP Remote Telnet Service
pop-2 109 TCP, UDP Post Office Protocol – Version 2
pop-3 110 TCP, UDP Post Office Protocol – Version 3
sunrps 111 TCP, UDP SUN Remote Procedure Call
auth 113 TCP, UDP Authentication Service
sftp 115 TCP, UDP Simple File Transfer Protocol
uucp-path 117 TCP, UDP UUCP Path Service
nntp 119 TCP, UDP Network News Transfer Protocol
nyp 123 TCP, UDP Network Time Protocol
netbios-ne 137 TCP, UDP NETBIOS Name Service
netbios-dgram 138 TCP, UDP NETBIOS Datagram Service
netbios-ssn 139 TCP, UDP NETBIOS Session Service
imap 143 TCP, UDP Internet Message Access Protocol
snmp 161 TCP, UDP SNMP
snmp-trap 162 TCP, UDP SNMPTRAP
cmip-man 163 TCP, UDP CMIP/TCP Manager
cmip-agent 164 TCP, UDP CMIP/TCP Agent
xdmcp 177 TCP, UDP X Display Manager Control Protocol
nextstep 178 TCP, UDP NextStep Window Server
bgp 179 TCP, UDP Border Gateway Protocol
prospero 191 TCP, UDP Prospero Directory Service
irc 194 TCP, UDP Internet Relay Chat Protocol
smux 199 TCP, UDP SMUX

Additional Security and Port Scanning Software

The SolarWinds Engineer’s Edition Toolset is a collection of 49 network management applications and utilities designed by network engineers, for network engineers. This network management toolset contains applications for fault and performance monitoring, discovery and mapping, and configuration and compliance. Download a free evaluation version of the Engineer’s Network Management Toolset to see more tools on security port scanning and network management.

The Port Scanner allows testing for open TCP ports across IP Address and port ranges or selection of specific machines and ports. Common port names are included with the program as well as the ability to add custom service names.

Port Scanner is extremely fast and configurable, allowing customization of the resulting view. Performance options allow scaling of scans to match machine abilities and/or firewall policies. Included is the ability to export to multiple formats allowing presentation of the data in multiple ways.

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