Hi all, For some time I've had an issue with folder creation and accessing those folders, in fact it's why I subscribed to this group in the first place.
From what I recall (this was a year or so ago) I had one of those late-night fixing sessions that turned into, well, something else that starts with f.. The server was functional but users could not create new email folders. Somehow I had messed up file permissions with Courier which meant it was messing up folder permissions, or so I thought. Being busy with a business to run, I couldn't do much for a while. It was functional so long as we stuck to the folders we had before the failure. I finally got some time and motivation today to sit down and work with it with a second server built to the same specifications (much gratitude to the person who trusted me with enough access to see the necessary file permissions!) So I worked on it for a while today, comparing permissions and so on and confirming that yes, Courier was resetting the permissions on folders accessed. I discovered that I'd managed to set /usr/bin/* to "setuid" (must have typed a * when I meant to type file name, or been meaning to go to a previous command and set something globally and got "chmod" rather than what I wanted. Maybe it was in response to something from rkhunter. Either way I was tired, I shouldn't have been working on a server without sleep, and I screwed up. Anyway, I reset the permissions back to what the other server has on /usr/bin, and that took care of Courier changing permissions. But that wasn't the issue. Even with rebooting the server (and a nervous few minutes while I waited for it to accept SSH...) did not fix it. It was a little while longer before I noticed this from the listing : drwxrwxr-x 2 virtual virtual 4096 Nov 8 2014 courierimaphieracl <<<<<< This one drwxrwx--- 2 virtual virtual 4096 Dec 29 12:55 courierimapkeywords -rwxrwxr-- 1 virtual virtual 73 Nov 8 2014 courierimapsubscribed -rw-r--r-- 1 virtual virtual 4847 Dec 29 12:49 courierimapuiddb drwxrwx--- 2 virtual virtual 12288 Dec 29 12:49 cur drwxrwx--- 2 virtual virtual 4096 Dec 29 12:49 new drwxrwx--- 2 virtual virtual 4096 Dec 29 16:24 tmp The other server did not have "courierimaphieracl" in it's lists. I have a test account so I went into the test account's directory and moved that "courierimapheiracl" elsewhere (just in case I needed it after all) and checked. Fixed. Behaviour back to as normal, I can create/delete/move messages between folders at will, rather than getting a "trycreate" error from Thunderbird when it tries to access a newly made folder. Or so I thought. After resetting the Courier permissions and rebooting the machine I still had problems creating new folders (could create but couldn't access, logging in with another mail program on another machine would show the folders created but also not accessible). I just went in to one of the other accounts I haven't yet reset and it's working fine. Put the courierimaphieracl folder back into my own account and the test account and they work fine as well. Maybe I should've restarted Thunderbird. So, this is not a gauranteed fix, but it has worked for me. Most likely being sure Courier had the right permissions is what fixed it : ls /usr/bin/co* -rwxr-xr-x 1 root root 5480 Jun 28 2012 courier-config -rwxr-xr-x 1 root root 71884 Jun 28 2012 couriertls While I'm still not sure what fixed it (reset privs, restart machine, still no go; remove dir, go; replace dir, still go ^o^), it works and the users are happy. No issues so far although it hasn't been that long. At least, hopefully, this will help anyone else who makes such a mess of things and for some reason cannot spot what the hell they did. (For those wondering, mail server was built using Flurdy's instructions at http://flurdy.com/docs/postfix - but screwed up later by me by not following the instruction of "don't fix complex systems when drunk/tired/totally stupid") ------------------------------------------------------------------------------ _______________________________________________ Courier-imap mailing list Courier-imap@lists.sourceforge.net Unsubscribe: https://lists.sourceforge.net/lists/listinfo/courier-imap
