Difference between revisions of "Checking ports with netcat"
From thelinuxwiki
(Pushed from thelinuxwiki.com.) |
m (moved Checking udp ports with netcat to Checking ports with netcat) |
||
| (5 intermediate revisions by one user not shown) | |||
| Line 1: | Line 1: | ||
| − | |||
| − | + | == checking tcp ports == | |
| − | + | ~% '''nc -vz 192.168.1.1 80''' | |
| − | + | examplehostname [192.168.1.1] 80 (http) open | |
| − | + | ~% '''nc -vz 192.168.1.1 80''' | |
| − | + | examplehostname [192.168.1.1] 80 (http) : Connection refused | |
| + | ~ | ||
| − | + | == checking udp ports == | |
| − | + | ~% '''nc -vzu 192.168.1.1 53''' | |
| − | + | examplehostname [192.168.1.1] 53 (domain) open | |
| − | examplehostname [192.168.1.1] | + | ~% '''nc -vzu 192.168.1.1 54''' |
| − | + | ||
| + | examplehostname [192.168.1.1] 54 (?) : Connection refused | ||
| + | |||
| + | == portscan == | ||
| + | |||
| + | # for i in {1..1024}; do nc -vz -w 1 192.168.1.1 $i; done | ||
[[category:network]] | [[category:network]] | ||
Latest revision as of 15:44, 12 December 2014
checking tcp ports
~% nc -vz 192.168.1.1 80
examplehostname [192.168.1.1] 80 (http) open
~% nc -vz 192.168.1.1 80
examplehostname [192.168.1.1] 80 (http) : Connection refused ~
checking udp ports
~% nc -vzu 192.168.1.1 53
examplehostname [192.168.1.1] 53 (domain) open
~% nc -vzu 192.168.1.1 54
examplehostname [192.168.1.1] 54 (?) : Connection refused
portscan
# for i in {1..1024}; do nc -vz -w 1 192.168.1.1 $i; done
