Hi !
Here is our problem...
We've got a ltsp ubuntu jaunty system in our high school ...
- The server is a DELL PowerEdge 840 with an unbuntu 9.04
- We got 67 thin clients HP 5730 ( yes, it's a lot )
- As our thin clients are quite powerfull, we use localapps ... Here's
our lts.conf
[default]
SEARCH_DOMAIN =
lyc-jacques-monod-st-jean-de-braye.ac-orleans-tours.fr
DNS_SERVER = 10.145.15.130
RCFILE_01=/etc/init.d/chmod-resolv.sh
LOCAL_APPS=True
LOCAL_APPS_MENU = True
LOCAL_APPS_MENU_ITEMS =
firefox,mplayer,vlc,gimp,openoffice.org-calc,openoffice.org-draw,openoffice.org-impress,openoffice.org-math,openoffice.org-writer
LOCALDEV = True
LDM_DIRECTX = True
SCREEN_07 = ldm
- We have a LDAP connection for our users
- We access our documents on another samba server with pam_mount
Two days ago, nobody could anymore connect to a thin client ... We
discovered that the /home partition ( /dev/sda4 ) was full : 100%
In some user's home, we had those directories :
drwxr-xr-x 2 andre.montay professeurs 4096 2009-09-03
08:38 bin
drwxr-xr-x 3 andre.montay professeurs 4096 2009-09-03
08:38 boot
drwxrwxrwx 9 andre.montay professeurs 4096 2009-09-03
08:38 cow
drwxr-xr-x 8 andre.montay professeurs 4096 2009-09-03
11:38 dev
The dev is especially big ...
Since two days, we are checking if dev is appearing in user's home, and
we find that the process filling home was ' scp -r -d -t . '
Here is what we have to do every hour to avoid server saturation ...
r...@ltsp-jaunty:~# df /dev/sda4
Sys. de fich. 1K-blocs Occupé Disponible Capacité Monté sur
/dev/sda4 187026804 35989856 141536512 21% /home
r...@ltsp-jaunty:~# ps aux | grep scp | grep -v scp-client | grep -v grep
13451 6344 5.4 0.0 4960 1308 ? D<s 17:32 0:16 scp -r
-d -t .
13483 30301 0.4 0.0 4964 1368 ? S<s 17:12 0:06 scp -r
-d -t .
r...@ltsp-jaunty:~# kill 6344
r...@ltsp-jaunty:~# ps aux | grep scp | grep -v scp-client | grep -v grep
13483 30301 0.4 0.0 4964 1368 ? S<s 17:12 0:06 scp -r
-d -t .
r...@ltsp-jaunty:~# kill 30301
r...@ltsp-jaunty:~# ps aux | grep scp | grep -v scp-client | grep -v grep
r...@ltsp-jaunty:~# ls /home/*/*/dev
/home/c/caroline.nio/dev:
dri fd net pts shm snd sndstat
/home/s/sylvain.andre/dev:
dri fd net pts shm snd sndstat
r...@ltsp-jaunty:~# rm -fr /home/*/*/dev
r...@ltsp-jaunty:~# ls /home/*/*/dev
ls: ne peut accéder /home/*/*/dev: Aucun fichier ou dossier de ce type
r...@ltsp-jaunty:~# df /dev/sda4
Sys. de fich. 1K-blocs Occupé Disponible Capacité Monté sur
/dev/sda4 187026804 31773428 145752940 18% /home
Sorry for this (too) long message ...
We don't now when, why, this process "scp -r -d -t" exists...
Any advice, any idea will be welcome...
Nicolas Lebrun
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