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How to create a bash script to check the SSH connection?
... ssh | grep open`
$ b=`nmap downhost -PN -p ssh | grep open`
$ echo $a
22/tcp open ssh
$ echo $b
(empty string)
But you'll have to grep the message (nmap does not use the return-value to show if a port was filtered, closed or open).
EDIT2:
If you're interested in the actual state of the ssh-por...
Launching Spring application Address already in use
...| grep LISTEN
java 78960 xyxss 119u IPv6 0x6c20d372bc88c27d 0t0 TCP *:8092 (LISTEN)
The 78960 is the process id, use the following command to kill the process
kill -9 78960
Launch the application again.
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马云、王健林为什么都看中了上海？ - 资讯 - 清泛网 - 专注C/C++及内核技术
...院正式批准设立上海自由贸易试验区，企业可以通过这片区域对外做买卖，而政府对自贸区的买卖活动不过多插手干预，同时还减免外来货物的关税。这无疑给国际企业落户上海增加了更多理由。
上海很好，但为什么香港和...
ERROR 2003 (HY000): Can't connect to MySQL server on '127.0.0.1' (111)
...the unix socket (/var/run/mysqld/mysqld.sock on ubuntu) rather than over a TCP socket.
– Duke
Sep 12 '13 at 0:08
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MySQL: determine which database is selected?
...lthough not reflected in the output above, on my system, it also shows the TCP port, which is handy for me since I'm running mysqld_multi and I like to remind myself which instance I'm talking to.
– Jeff
May 28 '18 at 20:30
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Print number of keys in Redis
...n:9.3.0
process_id:2854672
run_id:90a5246f10e0aeb6b02cc2765b485d841ffc924e
tcp_port:6379
uptime_in_seconds:2593097
uptime_in_days:30
hz:10
configured_hz:10
lru_clock:4030200
executable:/usr/local/bin/redis-server
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Stop node.js program from command line
I have a simple TCP server that listens on a port.
19 Answers
19
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ExpressJS - throw er Unhandled error event
...
on mac high sierra: lsof -nP -i4TCP:$PORT | grep LISTEN
– Roee
Jul 19 '18 at 4:23
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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...r system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.110.100)(PORT=1521))))' sid='PROD1';
System altered.
SQL> alter system set local_listener='(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=172.16.110.110))(PORT=1521))))' sid='PROD2';
Syst...
Python “SyntaxError: Non-ASCII character '\xe2' in file”
...er('my_lb', ['us-east-1a', 'us-east-1b'],[(80, 8080, 'http'), (443, 8443, 'tcp')])\n"
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