dtc-xen-firewall software package provides small firewall script for your dom0, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install dtc-xen-firewall
dtc-xen-firewall is installed in your system.
Make ensure the dtc-xen-firewall package were installed using the commands given below,
$ sudo dpkg-query -l | grep dtc-xen-firewall *
You will get with dtc-xen-firewall package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | X Window System software |
| Package | dtc-xen-firewall |
| Version | 0.5.17-1 |
| Description | small firewall script for your dom0 |
| Sub Section | x11 |
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