Last Ad Free Skype version

If you want to use latest Skype version just add following line to hosts file (C:\Windows\System32\drivers\etc):

Today I received a Skype update that started to show advertisements in chat windows.
This was unacceptable for me, so I decided to downgrade Skype to latest ad-free version, which seems to be

You can download old Skype version without ads from here:


To prevent Skype from updating automatically go to:

Tools -> Options… -> Advanced -> Automatic updates and click “Turn off automatic updates’.

Cisco IOS Remote Access and Site to Site VPN on one router

Simultaneous use of Remote Access VPN and Site-to-Site VPN has a few caveats.

Important configuration lines:

1. crypto isakmp key Pr3sh4r3DKEY address no-xauth
Make sure to include no-xauth for Site-to-Site VPN peer.

2. crypto map VPNMAP 65535 ipsec-isakmp dynamic DYNMAP
Dynamic map should be last in crypto map assigned to external interface. You may use 65535 here at is is maximum supported number.

Example of Cisco IOS configuration with multiple VPN connections on one router:

crypto isakmp policy 1
 encr aes 256
 authentication pre-share
 group 2

crypto isakmp key Pr3sh4r3DKEY address no-xauth

crypto isakmp client configuration group REMOTEGROUP
 acl 110
crypto ipsec transform-set REMOTEVPN esp-3des esp-sha-hmac 
crypto dynamic-map DYNMAP 10
 set transform-set REMOTEVPN 

crypto map VPNMAP client authentication list vpnuserauth
crypto map VPNMAP isakmp authorization list vpngroupauthor
crypto map VPNMAP client configuration address respond

crypto map VPNMAP 5 ipsec-isakmp 
 set peer
 set transform-set REMOTEVPN 
 set pfs group2
 match address VPN_ACL

crypto map VPNMAP 65535 ipsec-isakmp dynamic DYNMAP

ip local pool REMOTEPOOL

PHP exec system calls not working in Debian 6

After migrating Current website to Debian 6, PHP calls exec and system stopped working.
The reason for it is debian package dash which modifies behaviour of system default shell:

# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 Dec  9 20:25 /bin/sh -> dash

To revert this this behaviour to standard, execute

# dpkg-reconfigure dash

dash dpkg-reconfigure debian linux

Select “No” and default shell will be changed to standard bash.

You can check it with following command:

# ls -l /bin/sh
lrwxrwxrwx 1 root root 4 Dec  9 20:26 /bin/sh -> bash