Topic: Horde connection issues

[calisun]

For last couple of weeks, I been having issue with connecting to horde.
When I go to webmail page, I do see the login screen and I am able to enter my credentials.

And in server-manager log files/ messages I do see that the connection was successful:



But on my browser I keep getting connection error message:



* I did try to connect from different browsers and different machines, same result. Sometimes it connects on 2nd or 3rd try, sometimes it does not connect even after 10th try.

* Secure connection error message only happens when connecting to horde, connection to server-manager has no issues.

* I do have https://wiki.contribs.org/Horde5 contib installed for couple of years now, but this issue just started couple of weeks ago.

[Jean-Philippe Pialasse]

moved to contribs as it seems to impact only the horde 5 contrib on your server.

[calisun]

Is there anything specific I should be looking for in the log files? I don't see any issues in messages ( as shown in 1st post) it only shows that connection was successful. But after entering my email credentials I keep getting "Secure Connection Failed"

[janet]

calisun

Possibly poor quality or erratic Internet connection.
I have seen this before where connections to webmail keep dropping out.

[calisun]

Possibly poor quality or erratic Internet connection.

Webmail is the only one having issues, no issues connecting to server-manager, no issues connecting to all my domains using https, no problems connecting to wordpress admin also using https.

[janet]

Webmail is the only one having issues, no issues connecting to server-manager, no issues connecting to all my domains using https, no problems connecting to wordpress admin also using https.

Yes but is the location that connections to webmail are coming from, possibly using a poor quality Internet connection ?

Please comment about the people using webmail rather than other services (which wil behave differently to each other eg web access versus mail server access).

I am only sugggesting this as a possibility (that I have seen before) ie the problem being at or towards the client end of the pipe rather than the server end.

Where are you geographically located, are the users Internet connections good ?

[calisun]

Hi Janet

I only have a small handful of email users. All users connecting from and server is located in California.
I am able to connect (at the same time) to server-manager, https: WP-Admin, and webmail. Webmail is the only one that gives the error message.
And I am connecting from same location to same server for several years now, I am only having the issue in last couple of weeks.

[Jean-Philippe Pialasse]

Calisun,

As stated by Janet, multiple software have different behaviour even if they are all using Apache on SSL port. Some might be more tolerant to changes in connection than others, depending on the number of exchanges occurring.

As the error is very similar to another thread, what is the proxy setting of your client browser ? If auto detection is enabled, please disable it and retry.

[calisun]

I am not sure if this is the issue, but I have uninstalled latest contrib that I have installed:
https://wiki.contribs.org/ModDeflate

Now it seems to function OK, but it always would function better after reconfigure-reboot. So I will monitor it for few days to see how it goes.

Strange thing about ModDeflate, despite me uninstalling it, it still shows it being installed:

Code: [Select]

config show modDeflate
modDeflate=service
    level=9
    status=enabled

[Jean-Philippe Pialasse]

well this might be related

see https://dokuwiki.nausch.org/doku.php/centos:mail_c7:horde_1

I do not have horde 5 installed here, but might be some issues with double compression of content.

[janet]

calisun

Strange thing about ModDeflate, despite me uninstalling it, it still shows it being installed:

Code: [Select]

config show modDeflate
modDeflate=service
    level=9
    status=enabled

That just shows the config entry is left behind, which will do nothing much if the contrib is not installed.
What command did you use to uninstall it ?

To check if still installed, do:

rpm -q smeserver-mod_deflate

You can report a bug against the contrib for not removing the config details.

[calisun]

OK, couple of days now, and no problems now, so it was modDeflate problem.

.... but might be some issues with double compression of content.

What do you mean "double compression of content"

What command did you use to uninstall it ?

Used code as desrcribed in ModDeflate howto
https://wiki.contribs.org/ModDeflate

Code: [Select]

Uninstall
yum remove smeserver-mod_deflate

To check if still installed, do:

rpm -q smeserver-mod_deflate

Code: [Select]

# rpm -q smeserver-mod_deflate
package smeserver-mod_deflate is not installed


You can report a bug against the contrib for not removing the config details.

Done:
https://bugs.contribs.org/show_bug.cgi?id=10588


Should I also create a bug about it not being compatible with Horde 5?

[calisun]

Update,
Bug report, that was suggested, was closed as: CLOSED NOTABUG
See: https://bugs.contribs.org/show_bug.cgi?id=10588


I have also created a bug about mod_deflate not being compatible with Horde 5
https://bugs.contribs.org/show_bug.cgi?id=10589

[calisun]

I am starting to have same issue again, it stated this week out of the blue, so it looks like ModDeflate is not the issue since it is not installed any more.

In firefox I keep getting same useless message that secure connection failed, But today I tried connecting from Linux machine using Epiphany browser, and I see this message:

[calisun]

.....................
I have seen this before where connections to webmail keep dropping out.

I think Janet might have a good point. This server is used as an email and web server for several domains. I see that problem with email happens when the server has the heaviest web traffic.

Why the webmail is the only one that has issues? Server-manager, PHPMyadmin and wp-admin connections (all https) connect just fine.
So the question is, are there timeout settings in horde that can be adjusted? I searched this forum and only found info on how to change settings for size of attachments, but nothing on timeout. https://wiki.contribs.org/Email#Set_max_email_size

--------------
Just wanted to add that the server load is not the issue. This server has 4 Xeon processors/ 16 cores total, with 32GB memory (it is an older machine from ebay).  I can see that server load averages at 4% with top load peaks at 15%