In my previous post I talked about Layer 3 VPN feature of OpenSSH (starting from version 4.3).
Now, I'm talking about bridged VPN or Layer 2 VPN. With this feature you can create a virtual network device that, through the encrypted tunnel, is connected on the same network ...

Using directmedia=update or (canreinvite=update in old-sytle configuration) in chan_sip.conf Asterisk sends SIP UPDATE request to refresh SIP session.

If this UPDATE requests refers to an inactive call the phone reply with SIP/2.0 481 Call Leg/Transaction Does Not Exist.

In this situation Asterisk continue in ...

I'm in this situation:
a VPN to remote concentrator that load many routes to private networks, vpn server push DNS configuration via OpenVPN protocol (see --dhcp-option DNS in openvpn(8) ).
The scope of this post is to explain how you can use remote DNS pushed by VPN concentrator only ...

With a bit of code you can build a simple but powerful, single page, CMS using python, web.py and content stored in markdown files.

1) the application: application.py

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A useful snipped of php code:

echo file_get_contents('http://www.example.com/foo.html',\
  FALSE, stream_context_create(array\
  ('http'=>;array('ignore_errors' =>; TRUE))))

Sometime I must fighting with monkeys-configured LDAP servers.
This time DIT does not support RFC2696 (Paged Results for LDAP query), the data tree contains over 90000 entries.
Thanks to ldap.resiter is possible to implement client side pagination in ldap scripts.
These simple lines of code explain how to:

import ...

I up against this problem on a server hosted by Hetzner.My server is a virtual hypervisor containing several virtual machines.The Hetzner's politics is to statically associate a public IP to a single mac address, is therefore impossible to have multiple IP address on a single ethernet device ...

Avere a che fare con delle connettività scadenti è sempre un disastro.

Uno strumento per tenere monitorata una VPN e reagire in caso di down puo' essere comodo.

Esempio:
In questo esempio ho una VPN tra la rete A (192.168.2.0/24) e la rete B (192.168 ...

Packages available here: http://www.bertera.it/software/bacula/bacula-backports/

• Update: for an english version of this post you can read the README of pmvcb at github
  For bacula integration of pvmcb you can see the instruction on bacula wiki

VMware offre un pacchetto di backup per le macchine virtuali: VCB

Il VCB non fa altro che:

• eseguire uno snapshot ...