An error occurred while logging in - Connection error

rob987

Hi,
I have had mango running for about 18 months, log in once a week or so and check the solar data it
records, and emails me. Last login, I updated, an now a week later, I realise i cannot log in.

The login screen comes up, but fails with "An error occurred while logging in - Connection error"

System:

$ uname -a
Linux mango 4.9.0-12-amd64 #1 SMP Debian 4.9.210-1 (2020-01-20) x86_64 GNU/Linux

Java:
I noticed the java install advice has changed to openjdk, so I upgraded, but no luck.

$ java --version
openjdk 14 2020-03-17
OpenJDK Runtime Environment AdoptOpenJDK (build 14+36)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 14+36, mixed mode, sharing)

mango:
ma.log only has INFO data logged
Starting Mango 3.7.5 with Schema Version: 29

all the processes seem to be running OK

$ netstat -antp
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      454/sshd            
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      422/cupsd           
tcp        0    196 192.168.220.80:22       192.168.220.103:56870   ESTABLISHED 610/sshd: robert [p 
tcp6       0      0 :::8080                 :::*                    LISTEN      2125/java           
tcp6       0      0 :::22                   :::*                    LISTEN      454/sshd            
tcp6       0      0 ::1:631                 :::*                    LISTEN      422/cupsd           
tcp6       0      0 :::8443                 :::*                    LISTEN      2125/java           
tcp6       0      0 :::5502                 :::*                    LISTEN      2125/java           
tcp6       0      0 192.168.220.80:45056    192.168.220.75:502      ESTABLISHED 2125/java           
tcp6       0      0 192.168.220.80:5502     192.168.220.75:2902     ESTABLISHED 2125/java           
tcp6       0      0 192.168.220.80:43566    10.11.21.253:502        ESTABLISHED 2125/java           
tcp6       0      0 192.168.220.80:8443     192.168.220.103:53812   TIME_WAIT   -                   
tcp6       0      0 192.168.220.80:8443     192.168.220.103:53946   TIME_WAIT   -

I think the two "TIME_WAIT" lines are my login attempt.

Where can I look for errors / logs that might help resolve the issue.

Thanks

rob987

Hi All,
Well its the next morning here in Australia, and I am at home waiting for the corona virus to get me, so I clicked on the link for my mango install, and firefox did the security warning for a self signed certificate again - strange, then
then the login worked, and up came the screen.
![alt text]( image url)

Anyway, any thoughts on what magic happened overnight ?

Thanks

MattFox

Check your ma.logs, if this thing is internet facing someone may have been hammering it causing the login to drop out in relation to max non-authenticated attempts being tripped..

Fox