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| − | Install <code>[[nmap]]</code><ref>https://nmap.org/</ref> tool, available at least for Windows, Mac and Linux and execute <code>[[nping --tcp]] -p 3306 172.16.22.218</code> to test tcp connectivity for port [[3306]] in host 172.16.22.218:
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| − | [[nping --tcp]] -p [[5432]] your_postgres_host -q
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| − | nping --[[tcp]] -p [[3306]] 172.16.22.218 [[-c 0]]
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| − | Starting Nping 0.6.47 ( http://nmap.org/nping ) at 2019-03-12 09:47 UTC
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| − | SENT (0.0125s) TCP 172.16.22.18:2734 > 172.16.22.218:3306 S ttl=64 id=56345 iplen=40 seq=1546620167 win=1480
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| − | SENT (1.0127s) TCP 172.16.22.18:2734 > 172.16.22.218:3306 S ttl=64 id=56345 iplen=40 seq=1546620167 win=1480
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| − | RCVD (1.0129s) TCP 172.16.22.218:3306 > 172.16.22.18:2734 SA ttl=64 id=0 iplen=44 seq=1638376953 win=29200 <mss 1460>
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| − | SENT (2.0141s) TCP 172.16.22.18:2734 > 172.16.22.218:3306 S ttl=64 id=56345 iplen=40 seq=1546620167 win=1480
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| − | RCVD (2.0143s) TCP 172.16.22.218:3306 > 172.16.22.18:2734 SA ttl=64 id=0 iplen=44 seq=1654006808 win=29200 <mss 1460>
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| − | SENT (3.0155s) TCP 172.16.22.18:2734 > 172.16.22.218:3306 S ttl=64 id=56345 iplen=40 seq=1546620167 win=1480
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| − | RCVD (3.0157s) TCP 172.16.22.218:3306 > 172.16.22.18:2734 SA ttl=64 id=0 iplen=44 seq=1669652324 win=29200 <mss 1460>
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| − | <pre>
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| − | nping -tcp -p 443 google.com -q
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| − | Starting Nping 0.7.80 ( https://nmap.org/nping ) at 2020-01-13 17:00 +04
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| − | Max rtt: 14.615ms | Min rtt: 4.099ms | Avg rtt: 7.753ms
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| − | Raw packets sent: 5 (200B) | Rcvd: 5 (270B) | Lost: 0 (0.00%)
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| − | Nping done: 1 IP address pinged in 4.02 seconds
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| − | </pre>
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| − | nping -tcp -p 443 google.com -c 0
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| − | -c 0 number of probes. Default 5. If 0 run continuously.
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| − | == Related terms ==
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| − | * <code>[[wget]]</code>
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| − | * [[Host sweep]]
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| − | * [[Nagios]]: <code>[[check_tcp]]</code>
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| − | * <code>[[nc -v]]</code>
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| − | == See also ==
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| − | * {{mtr}}
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| − | * {{ping}}
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| − | * {{network performance}}
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| − | * {{nmap}}
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| | [[Category:ping]] | | [[Category:ping]] |
