Archive for July, 2017

Extract DEB (Debian) packages

July 13th, 2017 No comments

To extract a DEB package without installing it:

# first extract the archive
ar vx mypackage.deb

# now uncompress the data archive (depending on file extension)
tar -xzvf data.tar.gz
tar -Jxvf data.tar.xz
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Zabbix Agent plugin available for OPNsense

July 10th, 2017 No comments

OPNsense received a new plugin some weeks ago: It allows you to configure Zabbix Agent from the OPNsense WebGUI. Enabling this powerful monitoring agent takes only a few seconds:


It’s also possible to customize Zabbix Agent according to your needs, for example several features can be enabled or disabled:

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Extract RPM (RedHat) packages

July 9th, 2017 No comments

To extract a RPM package without installing it:

rpm2cpio foo.rpm | cpio -idmv
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Let’s Encrypt plugin available for OPNsense

July 6th, 2017 No comments

A Let’s Encrypt plugin for OPNsense was released back in january. It enables you to configure Let’s Encrypt SSL certificates from within the OPNsense WebGUI:

Not only is it one of the most comfortable ways to get free SSL certificates, it also integrates nicely with the HAProxy plugin for OPNsense:

The Let’s Encrypt plugin will automatically extend the HAProxy configuration and it will even verify that nothing was deleted and adds missing configuration items for you.

Don’t want to use HTTP-01 validation? Not an issue! The plugin supports a large number of DNS providers and services:

Naturally all SSL certificates are automatically imported into OPNsense’s certificate manager and may be used in multiple plugins and applications.

The awesome OPNsense users helped to iron out a few bugs and the plugin is mature enough for use in production environments. Of course, the plugin follows OPNsense security principles: ACME challenges are handled by a dedicated web service – the OPNsene GUI is never exposed to the

APT: only upgrade specific packages

July 5th, 2017 No comments

In case you want to upgrade only one application:

apt-get --only-upgrade install \*apache\* \*php\*
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