Hi I'm trying to set custom number of open files with limits.conf for a user with Debian 7 but it doesnt work (have rebooted etc.):

> debian7:/# cat /etc/issue
> Debian GNU/Linux 7 \n \l
>
> ii  libpam-modules:amd64               1.1.3-7.1
> ii  libpam-modules-bin                 1.1.3-7.1
> ii  libpam-runtime                     1.1.3-7.1
> ii  libpam0g:amd64                     1.1.3-7.1
> ii  sudo                               1.8.5p2-1+nmu1
>
> debian7:/# cat /etc/security/limits.conf | grep test
> testing        soft    nofile          4096
> testing        hard    nofile          8000
>
> debian7:/etc/pam.d# egrep -r pam_limits /etc/pam.d/
> /etc/pam.d/cron:session    required   pam_limits.so
> /etc/pam.d/sshd:session    required     pam_limits.so
> /etc/pam.d/atd:session    required   pam_limits.so
> /etc/pam.d/su:session    required   pam_limits.so
> /etc/pam.d/login:session    required   pam_limits.so
>
> debian7:/# sudo -u testing -s ulimit -Sn
> 1024

on a side not, this works ok, but it doesnt help me as I need the sudo command to see the correct limits aswell.

> debian7:/# sudo su - testing
> $ ulimit -Sn
> 4096
> $ ulimit -Hn
> 8000
> $

but on a Debian 6 system it works.

> debian6:/# cat /etc/issue
> Debian GNU/Linux 6.0 \n \l
>
> debian6:/# cat /etc/security/limits.conf | grep test
> testing        soft    nofile          4096
> testing        hard    nofile          8000
>
> debian6:/# egrep -r pam_limits /etc/pam.d/
> /etc/pam.d/sshd:session    required     pam_limits.so
> /etc/pam.d/cron:session    required   pam_limits.so
> /etc/pam.d/su:session    required   pam_limits.so
> /etc/pam.d/login:session    required   pam_limits.so
> /etc/pam.d/sudo:session required pam_limits.so
>
> debian6:/# sudo -u testing -s ulimit -Sn
> 4096
> debian6:/# sudo -u testing -s ulimit -Hn
> 8000

anyone seen this issue before or know if there is an added security option one has to active in wheezy?

Thanks in advance.
Stefan


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