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Wed Apr 11 14:00:52 2012

Re: Kerberos authentication

Stefan Ritt wrote:

Thomas Kleeb wrote:

Stefan Ritt wrote:

Thomas Kleeb wrote:

Hello to @all

First please let me say that I'm a complete green-horn when it comes to linux

I'm running elog on a linux virtual server and would like to use kerberos authentication. If I set 'Authentication = Kerberos' in the elogd.cfg file I get,

If I set 'Authentication = Kerberos, File' it works fine. I hope this is just some error on my part.

thanks,
Tom

Is Kerberos set up correctly on your PC? What is the Kerberos Realm? Does the command "kinit <your user name>" work correctly? If not, you have to install and configure Kerberos correctly. Make sure to have USE_KRB5 turned on in your Makefile.

Thanks for the quick reply!

I downloaded and installed the latest RPM. Is Kerberos used in the RPM? The command "kinit xxxxxxx"requests my password and then returns to the prompt. I believe that the virtual server is a normal PSI linux, but I'm not 100% sure

Kerberos is not used in the RPM. You have to compile yourself from the tar ball.

O.K.
Like I said in the beginning, I'm a linux green-horn How do I stop the elogd daemon, and do I have to delete all the elog files and directories created by the RPM or can I just follow the instructions for the tar file and install / make over the RPM installation?

67241

Wed Apr 11 14:04:33 2012

Re: Kerberos authentication

Thomas Kleeb wrote:

Like I said in the beginning, I'm a linux green-horn How do I stop the elogd daemon, and do I have to delete all the elog files and directories created by the RPM or can I just follow the instructions for the tar file and install / make over the RPM installation?

/etc/rc.d/init.d/elogd stop

Just compile elogd with Kerberos support and copy it over the existing elogd daemon.

67242

Wed Apr 11 14:36:43 2012

Re: Kerberos authentication

Stefan Ritt wrote:

Thomas Kleeb wrote:

/etc/rc.d/init.d/elogd stop

Just compile elogd with Kerberos support and copy it over the existing elogd daemon.

I think it's working now !!!!

Thanks
Tom

67244

Wed Apr 11 16:43:37 2012

Thomas Kleeb wrote:

I'm slowly able to see the finish line

Now all I need to do is get SSL to work. My server name is hf-info-elog and I'm not sure what the correct values for Port= and URL= should be.

thank
Tom (the green-horn)

All you need is a SSL=1 in the config file, then the default port of 443 will be used. The URL is the one seen from outside, like

https://hf-info-elog.psi.ch

or so. The certificate from the distribution is self-signed and therefore the browser will complain. Go to AIT to obtain an official certificate.

- Stefan

67246

Thu Apr 12 08:57:51 2012

Christopher Lee wrote:

Firstly, as with some of the others recently, I am a complete newb when it comes to linux, Though I refuse to let that stop me and really want to get this working.

Pretty much I have a situation where I have been asked to install ELOG, though I am unable to use port 25 at all and also need to use GMAIL for the SMTP server?
It is also my undertanding from the documentation that ELOG only sends mail via port 25

So, I have setup iptables to forward everything from port 25 and a GMAIL IP address used in ELOG's global config for the SMTP, to a stunnel that redirects everything to GMAIL on port 465.
While getting that right took me almost two days, and that was with tons of help and more than half of it being spoon fed to me (though I have learnt SO SO MUCH from just that).
I am still unable to get ELOG to send emails, even if does now seem to connect

Below is a copy of the log from last night (I have spent most of the day trying to sort it out further, but I get the same error)

So I guess my question is, Is it possible to use GMAIL, with ELOG, based on my current conditions, and does anyone have any idea what I can do to go on from here, as I doubt I am the first one to head down this road?

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

10-Apr-2012 21:45:19 [Chris@1.2.3.4] {logbookA} Email from <chris@server.com> to chris@server.com, SMTP host 173.194.67.108:
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} 220 mx.google.com ESMTP XXXXXXXX.XX^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA}
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} EHLO SERVER.COM^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} 250-mx.google.com at your service, [152.106.18.2]^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} 250-SIZE 35882577^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} 250-8BITMIME^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} 250-AUTH LOGIN PLAIN XOAUTH^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} 250 ENHANCEDSTATUSCODES^M
10-Apr-2012 21:45:20 [Chris@1.2.3.4] {logbookA} AUTH LOGIN^M
10-Apr-2012 21:45:21 [Chris@1.2.3.4] {logbookA} Username:
10-Apr-2012 21:45:21 [Chris@1.2.3.4] {logbookA} username@gmail.com
10-Apr-2012 21:45:21 [Chris@1.2.3.4] {logbookA} Password:
10-Apr-2012 21:45:21 [Chris@1.2.3.4] {logbookA} MYXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
10-Apr-2012 21:45:21 [Chris@1.2.3.4] {logbookA} 501 5.5.2 Cannot Decode response fl2sm792152wib.2

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Right now I am pretty stuck, and any advice would be greatly appreciated on how to move forward.

Thanks in Advance

As far as I know GMAIL requires SSL for its SMTP connection, which ELOG does not (yet) support. But you can set up your own SMTP server easily. Should be easier than your iptables work.

67247

Thu Apr 12 14:38:09 2012

Christopher Lee

chris@chrisandclaire.org

Stefan Ritt wrote:

Christopher Lee wrote:

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

As far as I know GMAIL requires SSL for its SMTP connection, which ELOG does not (yet) support. But you can set up your own SMTP server easily. Should be easier than your iptables work.

It does require SSL, though thats where stunnel came in.(Thanks to Sergio for all the help and getting me that far, as well as with all the iptable help :D) .

I was however finally able to get it working just a few minutes ago using GMAIL as the SMTP.

I was able to telnet into smtp.gmail.com over the stunnel, and when I repeated the process that elog goes through from information that I grabbed with TCPdump, everthing would work, until it got to the password that ELOG sends and that was created using : /usr/local/sbin/elogd -t password -c /usr/local/elog/elogd.cfg. When I tried to decode the password, it also gave me errors.

I encoded the password myself, and when I changed the one in [global] to match the one I created instead, ELOG was able to connect and send mail (What I still dont understand is that when I encode my own username to use on telnet, it fails, but the one I got from the tcpdump from elog works.. so its a mixture of the ELOG encoded username, and my own encoded password).

I dont know if it would help if I type up the rest of what we did to get it working here for anyone else for future reference. It does require iptables and stunnel to be installed. Though its a single entry into iptables, and small addition to stunnel.conf once they are running.

67248

Sat Apr 14 11:10:14 2012

Christopher Lee

chris@chrisandclaire.org

To get it to work required a working installation of IPTABLES and STUNNEL

First is to add the following details into elogd.cfg

/usr/local/elog/elogd.cfg wrote:

SMTP username = username@gmail.com
SMTP host = 173.194.67.108
SMTP Password =

This SMTP IP address is a virtual host from Googles SMTP, Any IP Address could technically be used.

Next is to redirect all traffic to port 25 and the above IP address, to STUNNEL.

Quote:

sudo iptables -t nat -A OUTPUT -p tcp -d 173.194.67.16 -dport 25 -j DNAT --to 127.0.0.1:10555

You can select any port other than 10555 if required. Next you need to modify the STUNNEL config file and add the following.

/etc/stunnel/stunnel.conf wrote:

[elogssl]
client = yes
accept = 10555
connect = smtp.gmail.com:465

Last was the password. For some reason sudo /usr/local/sbin/elogd -t <password> -c /usr/local/elog/elogd.cfg created a password that was unreadable by google.
To recreate your own run the following command:

Quote:

perl -MMIME::Base64 -e 'print encode_base64("\000not.my.re\@l.password")'

Replace "\000not.my.re\@l.password" with the GMAIL password, remember to escape with a \ any @ signs you might have.
Copy the output and add that into the elogd.cfg file in the SMTP Password syntax.

kill the STUNNEL PID if it is running and restart it to to load the new details, also remember to save your IPTABLES for next reboot

And that should be it, so now ELOG uses a port other than 25, and also redirects via SSL to a SMTP like GMAIL.

67251

Tue Apr 17 21:59:43 2012

Re: create "front page" for a logbook

Stefan Ritt wrote:

Rex Tayloe wrote:

Is there a way to create a "front page" or "table of contents" for a logbook?

While chronological entries are good and what elog was designed for, I find myself wanting a page to summarize important things
and/or link to important files that are somewhere in that logbook. And, I would like to use the features of the elog editor to do (not just point
to another www page that points to the various elog entries). For example, in an analysis logbook, you would like to have one page that
may summarize latest on analysis and point to best/latest plot/drawing of something and not have to re-search for it every time.

I think that start page with cmd to go to entry 1 (how do I do that?) may work. Then I just keep editing entry 1 to point to latest info or
entries. Will this work? Will I run into a size limitiation if I attach too many files to that? Is there a better way?

One could imaging using a wiki to do this, however, I never seem to get to updating our wikis... maybe I should just figure how to
get elog to do it.

Thanks.

Well, if you never get to update your wiki, you will you get to update your summary page? As you know there is no free lunch.

For my analysis logbooks, I do it such that I create an arbitrary entry in the logbook, where I put references to other entries. Using the syntax "elog:<id>" this is very simple like here: elog:67222. Then I put a link to that special page in my browser bookmarks. This puts me one mouse click away from accessing this page. You can link to other elog pages but also to page attachments this way, so no need to put too many attachments into a single page, although there is no limit on that.

Best regards,
Stefan

Thanks for suggestion... it gave me idea for slightly different way to do it. The method you suggest doesnt work that well to share in group (everyone would have to add that link in their bookmarks).. So I added this in config file:
Title image = <img border=0 height=25 src="bulb.png" alt="Summary/TOC entry">
Title image URL = <http:link to my specific elog page/entry num>

That replaces elog help icon with a link to TOC entry which can be any entry number. One could make a custom icon and perhaps play around with adding more than one link (?).

Another thing that could do same thing and maybe more consistent with elog philiosophy would be to add a command that goes to a specific link or entry.... but this current solution works...

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