I'm having a strange issue here that I can't find the solution to in this forum, really.
The problem is that when I want to login on the Admin page, I do get the page itself, but after entering the credentials I'm simply being redirected to the login page again. No errors, not even when I activate debug in config.php. Nothing in error or accesslog, nor in php.log either.
I tried resetting the password of the admin user to admin using the procedure described somewhere in this forum, but that did not solve my problem.
Of course cookies, javascript and popup settings are OK, since I am able to admin my site running at my provider with the same browser.
What I did was the following:
I have a CMSMS site running with my provider. Everything works fine there, but this is a live site, and I wanted to have a develop environment, so I ftp'ed all files in the cmsms directory of the working site to /var/www/cmsms on my Linux server. After this I made a dump of the mysql cmsms database running at my provider, created a new database in mysql on the Linux server at home, and imported the dumped mysql data.
I then had to modify config.php so the urls and paths reflected the new environment.
After this the site was almost OK. I was missing all images. Turned out to be a .htaccess file in /uploads. I renamed this .htaccess file to htaccess.
Now the site is completely browsable on my Linux server at home. Everything seems to work perfectly. Except logging in as administrator to be able to do the developing......

Does this ring a bell with someone ?
Btw, I'm running Ubuntu 10.04, Apache 2.2.14, PHP 5.3.2 and CMSMS 1.9.4.2.
I hope someone can help me out.
Thanks anyway.
Hans