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Category: Linux – HOWTO

Installing full Linux from Windows on USB with persistent storage

palo73 0 Comments

This guide will describe how to install a full Linux OS on an USB flash disk with permanent storage feature, i.e. the system does not lost your files after a reboot as usual live distribution does. The system is fully operable OS and transferable to any PC with all your installed and saved stuff.

There are several ways how to do it, for example using two usb keys, or making a bootable live USB key and then performing the installation (as is for example decribed here How to Install Linux OS on USB Drive and Run it On Any PC ).

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Using tcpdump for diagnostics of DNS – debian

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TCPdump is a powerful command-line packet analyzer, which may be used for analyzing of DNS question/answer process. TCPdump is preinstalled on many linux distributions. For debian it can be installed directly from the debian repository:

apt-get install tcpdump

TCPdump allows write a sniff to file or display it realtime. It provides several ways how to use it for DNS analysis. Now I will write a few examples. Deeper description is at the bottom of the page.

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Installing and configuring Homer SIP capture server – debian 64b squeeze – howto

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Description: Homer is an Open Source SIP Capture server by Alexandr Dubovikov & Friends, based on OpenSER/Kamailio and supporting HEPv1/v2 (Homer Encapsulation Protocol) & IP proto 4 (IPIP) encapsulation and monitoring/mirroring port capture modes. Homer ships with a flexible and lightweight capture agent for unsupported scenarios and a powerful browser based UI (webHomer).

Web:

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SIP clients – security features analysis

palo73 0 Comments

Table provides the overview of security features of nine analysed open-source SIP clients (some sources call them the RTC communicator).

Source: P. Segeč, M. Moravčík, J. Hrabovský, J. Papán and J. Uramová, “Securing SIP infrastructures with PKI — The analysis,” 2017 15th International Conference on Emerging eLearning Technologies and Applications (ICETA), Stary Smokovec, 2017, pp. 1-8.
doi: 10.1109/ICETA.2017.8102525
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?rp=&arnumber=8102525&isnumber=8102457

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Linux Mint – Mouting a FreeNAS iSCSI disk

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I'm trying to solve a problem of network backuping on our FreeNAS server. I've already tried CIFS (where were some issues - Linux Mint - problem to access a FreeNAS CIFS share) however I have there a performance issue, especially working with huge number of files produced by the backup proces (deja-dup backup over the net). As the second alternative I'm going to try iSCSI to map a network disk/file from a freenas server.

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