Questions tagged [debugging]
Finding problems in a program and trying to solve these.
202 questions
3
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2
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convenient way to get a shell with a systemd unit file restrictions?
assuming a modern linux host, is there any convenient way to spawn an interactive shell in the exact context systemd would use for a unit/service?
alternatively, any way to attach a shell to a running ...
- 381
0
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1
answer
323
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Logs are not being printed out to the wildfly console
I got a problem with my wildfly server. I a trying to print logs, but they are not showing whatever changes to wildfly log configurations I am making. Here is the code with the initial class that runs,...
1
vote
0
answers
99
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Strange interaction between UserDir and RedirectMatch in Apache (redirecting multiple slashes)
I have an Apache server (version 2.4.62-1~deb12u2 from Debian 12 “Bookworm”, currently the stable version of Debian) serving a site http://www.example.tld/ with UserDir activated, so http://www....
- 111
0
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499
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How to debug gpupdate?
My gpupdate can take upto 10 minutes to run instead of 40s.
How can I debug gpupdate ? :
PS C:\> ~/psh/time.ps1 gpupdate
Updating policy...
Computer Policy update has completed successfully.
User ...
- 441
0
votes
1
answer
268
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Why dovecot use "postfix_accounts.users" to retrieve mail user information after username/password auth?
I had set up a mail server in my Rocky Linux 9.1 that comes with postfix, dovecot and mysql (refer to https://computingforgeeks.com/how-to-setup-mail-server-on-centos/).
Every thing is updated. (...
- 103
4
votes
2
answers
5k
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Debugging Prometheus OOMkilled despite 6Gi limits
I'm at the end of my patience with a prometheus setup leveraging kube-prometheus-stack 44.3.0 (latest being 45).
I have two environments, staging and prod. In staging, my prometheus runs smoothly. In ...
- 151
2
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1
answer
30k
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Tips to Debug CURL with a client - (56) Recv failure: Connection reset by peer site
A client of mine is trying to connect to our site via CURL. The command they are running is:
curl -Ik example.com
The response they receive is:
(56) Recv failure: Connection reset by peer site
They ...
- 241
1
vote
1
answer
591
views
jcmd works in console but fails in script
I'm getting mad with what should be a simple task: a java process is running, runs out of memory and a script runs.
SELinux is disabled.
in setenv.sh :
-XX:OnOutOfMemoryError='/opt/alfresco/scripts/...
1
vote
0
answers
3k
views
How can I see which commands ansible runs and their output?
I'm new to Ansible, and yes I know this has already been asked many times, but I already tried to apply advice I saw elsewhere.
I did export ANSIBLE_STDOUT_CALLBACK=debug and then ansible-playbook -...
- 311
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0
answers
879
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Can Premature end of script headers be properly debugged? (getting the real error message?)
We are getting
[Wed Aug 25 15:06:05.484053 2021] [proxy_fcgi:error] [pid 24792:tid 140550620227328] [client xxxx:40224] Premature end of script headers: index.php, referer: https://www.example.com/
[...
- 856
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0
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1k
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Debugging "upstream prematurely closed FastCGI request while reading upstream"
I am running an nginx + php-fpm setup. I recently ran into problem returning binary data to the Nginx server. Nginx show this in the error log:
2021/08/04 19:22:27 [error] 996463#996463: *1 upstream ...
- 201
1
vote
1
answer
2k
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/etc/login.defs settings not taken into account: password aging
The following is done on a Ubuntu 20.04 system.
This is the scenario where I am facing an issue:
I edit the password aging settings in the login.defs file
Then I change the password of the user with ...
- 158
2
votes
1
answer
1k
views
How to get line number of error that .htaccess apache2 is reporting in /var/logs/error.log
I get a internal server error after adding redirects to .htaccess - I've added 600 of them.
I check /var/logs/error.log
[Wed May 12 16:26:02.600394 2021] [core:alert] [pid 8071] [client 127.127.127....
- 491
2
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1
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20k
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What does `Accept-Encoding: gzip,deflate` mean?
Can someone explain what it means when I see Accept-Encoding: gzip,deflate when listening with ncat?
Does it mean the body is compressed? And if so, how can I decompress it?
$ nc -lnvp 4000
Ncat: ...
- 10.8k
0
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0
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188
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Is it possible to install Windows Debugging Tools via Powershell?
I've installed LeanSentry on one of my web servers to try and diagnose some performance issues I've been having. I need to install Windows Debugging Tools (from the Windows SDK) to get some memory ...
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