Description:
----[For better reports, please attach the log file after submitting. You can find it in /home/highvolt/.mysql/workbench/log/wb.log]
I am sorry my poor English.
A ssh tunneling is not closed when I tested the ssh connection by 'Test Connection' button in Manager Server Connections dialog. So, a number of ssh tunneling is increased as number of clicking the 'Test Connection' button.
You can see 3 lines in following netstat log when I tested 3 times. 3 lines of "sshd: root" are the ssh tunnels.
root@skminvm:~# netstat -anp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 486/mysqld
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 419/systemd-resolve
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 454/sshd
tcp 0 0 127.0.0.1:40162 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:40160 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 127.0.0.1:40164 127.0.0.1:3306 TIME_WAIT -
tcp 0 0 10.0.2.15:22 121.157.229.24:53306 ESTABLISHED 3819/sshd: root
tcp 0 196 10.0.2.15:22 121.157.229.24:42358 ESTABLISHED 2091/sshd: root@pts
tcp 0 0 10.0.2.15:22 121.157.229.24:53244 ESTABLISHED 3779/sshd: root
tcp 0 0 10.0.2.15:22 121.157.229.24:53190 ESTABLISHED 3739/sshd: root
tcp6 0 0 :::443 :::* LISTEN 800/apache2
tcp6 0 0 127.0.0.1:8005 :::* LISTEN 587/java
tcp6 0 0 :::8009 :::* LISTEN 587/java
tcp6 0 0 :::80 :::* LISTEN 800/apache2
tcp6 0 0 :::8080 :::* LISTEN 587/java
tcp6 0 0 :::4949 :::* LISTEN 488/perl
tcp6 0 0 :::22 :::* LISTEN 454/sshd
udp 0 0 127.0.0.53:53 0.0.0.0:* 419/systemd-resolve
udp 0 0 10.0.2.15:68 0.0.0.0:* 269/systemd-network
These ssh tunnels are closed only when I close MySQL Workbench. Therefore, useless ssh tunnel connections are generated whenever I test ssh tunnel connection.
How to repeat:
1. Open 'Manage Server Connections'.
2. Set configurations for SSH tunneling.
3. Click 'Test Connection'
4. You can see success message.
5. Login ssh to the host server.
6. run 'netstat -anp'
7. You can see established ssh tunnel connection which should be closed.
Suggested fix:
After testing connection, the ssh tunnel should be closed regardless of termination of MySQL workbench.
