poff -a used to discoonect it but debian loged out !

[a dehqan <dehqan65@gmail.com>]

In The Name Of God

I'll be Thankfull if you guide ;
After connecting to a free vpn server , poff did not work to disconnect it's conection ,also KVPNC could not able to quit or disconnect connection .
poff -a used to discoonect it but debian loged out !
Is it kind of bug ?Or has debian been exploited with it ?kind of attack ?

Distributor ID:    Debian
Description:    Debian GNU/Linux 5.0 (lenny)
Release:    5.0
Codename:    lenny

Regards dehqan