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ID Date Icon Author Author Email Category OS ELOG Versiondown Subject
  1468   Mon Oct 17 10:20:31 2005 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.6.0Re: How to connect to an ELOG server running behind apache+ssl using the elog command line program?

Johan Nyberg wrote:
I need to post a large number of "old" messages to one of my logbooks and I am trying to modify the script doelog (see http://midas.psi.ch/elogs/Contributions/10) to suit my needs. I am using apache + ssl for secure logins to my ELOG server. The doelog script uses the elog utility program, which is useful for posting ELOG messages from scripts or from the command line. My problem is that I cannot talk to my ELOG server with elog.


This is because elog does not support "https" through secure socket layers (SSL). Also elogd does not, that's why you use Apache as your proxy. So the only way for you to use elog is to execute it on the server, where it can directly connect to elogd without going through the ssl layer of Apache.
  1469   Mon Oct 17 11:07:10 2005 Reply Johan Nybergjohan.nyberg@tsl.uu.seQuestionLinux2.6.0Re: How to connect to an ELOG server running behind apache+ssl using the elog command line program?

Stefan Ritt wrote:

Johan Nyberg wrote:
I need to post a large number of "old" messages to one of my logbooks and I am trying to modify the script doelog (see http://midas.psi.ch/elogs/Contributions/10) to suit my needs. I am using apache + ssl for secure logins to my ELOG server. The doelog script uses the elog utility program, which is useful for posting ELOG messages from scripts or from the command line. My problem is that I cannot talk to my ELOG server with elog.


This is because elog does not support "https" through secure socket layers (SSL). Also elogd does not, that's why you use Apache as your proxy. So the only way for you to use elog is to execute it on the server, where it can directly connect to elogd without going through the ssl layer of Apache.


Hi Stefan,

Thanks for your advice. As you say I can add entries using elog to my logbooks if I do it from the server on which elogd runs, in which case ssl and apache are bypassed:

$ elog -h localhost -p 8080 ...

Thanks once again for your excellent software!

Johan
  1501   Fri Nov 4 16:51:32 2005 Question Elaine Cristina Franchini dos Anjoselaine@ccuec.unicamp.brQuestionLinux2.6.0Problems with ELOG and Internet Explorer
Hi,

We are facing a problem when using the Internet Explorer browser to edit
logbooks entries. The error occurs when we use the preview option.

After this, the connection becomes slow to display the preview and returns
"Server Not Found - Page cannot be displayed" or "Internal Server error" as result.
If we try to turn back to the edit page the browser retuns
"This page has been expired".

It happens at any time even we edit simple entries in Internet Explorer,
but never occurs in other browsers.

Software versions that are running :

Elog version 2.6.0-beta
Fedora Core release 1 (Yarrow)
Apache/2.0.54 (Unix) mod_ssl/2.0.54 OpenSSL/0.9.7g
(Elog is running under apache proxy)

Is there any bug report about this or there is something else
that I need to configure ?

Thanks in advance.

Elaine
  1502   Mon Nov 7 09:16:47 2005 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.6.0Re: Problems with ELOG and Internet Explorer

Elaine Cristina Franchini dos Anjos wrote:
We are facing a problem when using the Internet Explorer browser to edit
logbooks entries. The error occurs when we use the preview option.

After this, the connection becomes slow to display the preview and returns
"Server Not Found - Page cannot be displayed" or "Internal Server error" as result.
If we try to turn back to the edit page the browser retuns
"This page has been expired".

It happens at any time even we edit simple entries in Internet Explorer,
but never occurs in other browsers.

Software versions that are running :

Elog version 2.6.0-beta
Fedora Core release 1 (Yarrow)
Apache/2.0.54 (Unix) mod_ssl/2.0.54 OpenSSL/0.9.7g
(Elog is running under apache proxy)

Is there any bug report about this or there is something else
that I need to configure ?


I tried on this forum with Internet Explorer 6.0 and could not reproduce the problem, and I never heared anybody else mentioning this problem. Can you reproduce the problem on the forum?
  1504   Mon Nov 7 18:55:57 2005 Reply Elaine Cristina Franchini dos Anjoselaine@ccuec.unicamp.brQuestionLinux2.6.0Re: Problems with ELOG and Internet Explorer
Hi Stefan,


Quote:

I tried on this forum with Internet Explorer 6.0 and could not reproduce the problem, and I never heared anybody else mentioning this problem. Can you reproduce the problem on the forum


I couldn't reproduce the problem in this forum too, and I'm using Internet Explorer to edit this entry now... :-D

I did some new tests and at this time I tried to submit new entries using the ELOG default port
without proxy, because I realized that this Forum doesn't use https (maybe uses proxy).

I edited and used preview many times and the ELOG worked fine without errors in IE.
So, I think my problem is something configured in the proxy or https that Internet Explorer
doesn't work very well in this circumstance.

Do you know problems like this ?
Is there anybody else using ELOG under https ?

My proxy configuration :


Quote:


1) http (default port 80):

# Redirect to ELOG - Logbook

Redirect permanent /elog https://antares.ccuec.unicamp.br:9696


2) https (I need to use other different port number) :

<VirtualHost 143.106.80.30:9696>
# Here be standard configuration for the Virtual Host
ServerName antares.ccuec.unicamp.br:9696
ServerAdmin suporte@ccuec.unicamp.br

# This be the path to the elog directory
# (This didn't seem to make any difference, but it be a good
# idea nonetheless)
DocumentRoot "/www/elog"

# Here be the setup for the SSL component of the Virtual Host
SSLEngine On
SSLCertificateFile /www/apache/conf/ssl.crt/server.crt
SSLCertificateKeyFile /www/apache/conf/ssl.key/server.key

# Here be the setup options for the Proxy module
ProxyRequests Off
ProxyPreserveHost On

# This be the root of the new Virtual Host, and it should be
# redirected to the port the elogd server is listening to
# (8081 on our poop deck).
<Location />
<Location />
ProxyPass http://antares.ccuec.unicamp.br:8081/
ProxyPassReverse http://antares.ccuec.unicamp.br:8081/
SSLRequireSSL
</Location>

ErrorLog /www/apache/logs/error_log
TransferLog /www/apache/logs/access_log </VirtualHost>


Thanks in advance.

Elaine
  1505   Tue Nov 8 08:17:22 2005 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.6.0Re: Problems with ELOG and Internet Explorer

Elaine Cristina Franchini dos Anjos wrote:
I edited and used preview many times and the ELOG worked fine without errors in IE. So, I think my problem is something configured in the proxy or https that Internet Explorer doesn't work very well in this circumstance.


Have a look at your URL = ... statement in elogd.cfg
It should probably read
URL = https://antares.ccuec.unicamp.br:9696

ELOG uses redirection internally. To determine it's own address, it uses the URL statement. If you use Apache as an proxy together with https, you have to specify the URL under which you usually access ELOG from outside. If this is wrong, ELOG might try to redirect to http:// or something which might not be possible.

A good way to debug this is to run ELOG with the -v flag and carefully watch the HTTP traffic. You will see Location: ... statements which redirect the browser, then the browser will access the redirected URL (if it's correct), or you will see nothing (in case the browser tries to access a non-existing URL).
  1539   Sat Dec 3 23:32:13 2005 Entry Jesse Wodinjwodin@stanford.eduQuestionLinux2.6.0Upgrade from 2.3.8 to 2.6.0 logbook problem
Hi, I'd like to upgrade from an old version of elog 2.3.8 to 2.6.0. I installed the new version, and it runs fine, but it doesn't seem to see my old logbooks (the path in the conf file is correct). Do I have to upgrade my logbooks somehow?

THanks!

Jesse
  1540   Mon Dec 5 17:11:33 2005 Reply Stefan Rittstefan.ritt@psi.chQuestionLinux2.6.0Re: Upgrade from 2.3.8 to 2.6.0 logbook problem

Jesse Wodin wrote:
Hi, I'd like to upgrade from an old version of elog 2.3.8 to 2.6.0. I installed the new version, and it runs fine, but it doesn't seem to see my old logbooks (the path in the conf file is correct). Do I have to upgrade my logbooks somehow?


No. The last change in the logbook format was for version 2.0.0. So something else must be wrong. Just creat one entry with your new elog, and see where it's created on the hard disk. Put your old logbooks there. If you start elogd manually with the "-v" flag, you will see it indexing all logbooks. Check that you see all your entries there.
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