[CentOS] Weird permission

Dear all,
I got weird permission on one of my server, when I ls -l the / i got
permission for all directory set to "drwxr-xr-x." there are dot after
the executable permission for others. what dot mean in permission and
how to fix it? the actual problem is I could login via ssh but cannot
login via winscp. any idea how to fix this? thanks in advance
best regards,




-- 
Muhammad Panji
http://sumodirjo.wordpress.com
http://www.kurungsiku.web.id