POP3
POP3 Server error
Symptom:
-ERR Can't get lock. Mailbox in use
Solution:
The error can be recreated by the following dialog.
#/usr/local/sbin/ipop3d
+OK POP3 thalia v2003.83 server ready
user joe
+OK User name accepted, password please
pass TEST123
-ERR Can't get lock. Mailbox in use
Next, we are going to use truss to provide a system trace.
#truss /usr/local/sbin/ipop3d
execve("/usr/local/sbin/ipop3d", 0xFFBFFDF4, 0xFFBFFDFC) argc = 1 ... snipped umask(0) = 022 lstat("/tmp/.1d80004.1407", 0xFFBFDDF0) Err#2 ENOENT open("/tmp/.1d80004.1407", O_RDWR|O_CREAT|O_EXCL, 0666) Err#13 EACCES fstat(-1, 0xFFBFCC50) Err#9 EBADF
The previous lines tells us that the pop3 daemon can't create a temporary file under the directory /tmp.
... snipped -ERR Can't get lock. Mailbox in use write(1, " - E R R C a n ' t g".., 38) = 38 _exit(0)
When I checked the permission of the /tmp directory, I got this:
#ls -ld /tmp
drwxr-xr-x 15 root root 683 Dec 29 13:44 /tmp
A fix to this problem, is to allow world write with the sticky bit on the /tmp directory.
#chmod 1777 /tmp
#ls -ld /tmp
drwxrwxrwt 15 root root 683 Dec 29 13:56 /tmp
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