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What is SSH tunneling and how to use it Victor Truica's techcave
http://truica-victor.com/ssh-tunneling
Truica Victor blogging on tech, hosting and security. Feb 11, 2015. What is SSH tunneling. Uses of SSH tunneling. Anonymizing / changing IP address – there might several different reasons why one would want its machine IP to originate from a different country. One might be to get search results appropriate for that country, another might be to access online services that restrict certain countries. A similar way to do this is by using a VPN. How to establish a SSH tunnel. That can provide that. F instruc...
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Sending encrypted emails using Thunderbird Victor Truica's techcave
http://truica-victor.com/encrypted-email-thunderbird
Truica Victor blogging on tech, hosting and security. Mar 24, 2015. Sending encrypted emails using Thunderbird. The present article describes how to use mail encryption with Thunderbird on Ubuntu 14.04. It assumes that you have the below mentioned prerequisites in place and you have an idea about how it works. If not, please consult the links at the ending of the article, under “Resources”. Thunderbird email client installed. Thunderbird enigmail extension installed. Don’t forget to attach your pub...
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fog Archives - Victor Truica's techcave Victor Truica's techcave
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Truica Victor blogging on tech, hosting and security. Posts tagged with: fog. Apr 7, 2015. Admin-in-a-Box – Provisioning and cloning for SMBs. Several months ago, I got my Bachelor in Product development and Technology Integration with a project on IT automation. Admin-in-a-Box – Provisioning and cloning for SMBs , a project that aims at increasing efficiency in IT department in Danish small and medium sized businesses. Feb 24, 2015. All in one PXE server. During a cool project where I was using FOG.
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Turning a PC into a gateway Victor Truica's techcave
http://truica-victor.com/pc-gateway
Truica Victor blogging on tech, hosting and security. Feb 16, 2015. Turning a PC into a gateway. During a project, I ended up needing to make a PC that was on 2 subnets into a gateway. This, of course, led to a lot of packet tracing and questions on how to set this up properly. To do this, the following steps are to be followed:. Set up iptables rules. Can be done in one line by:. Echo 1 /proc/sys/net/ipv4/ip forward. Set up iptables rules. Allow established connections iptables -A INPUT -m state - state...
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Linux permissions prettified Victor Truica's techcave
http://truica-victor.com/linux-permissions-prettified
Truica Victor blogging on tech, hosting and security. Mar 10, 2015. When trying to find out something about a files permission, one would use “. Ls -l” ;. Or if you want more info like space usage – “. Stat -c “%a %n” *. 8221; things got a bit prettier. It even became more pretty, when using Filezillas GUI to change permissions. There are both letters and numbers. What are permissions and why are they used? In a multi-user environment (where by user we understand a physical human user and virtual users t...
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Must have plugins for Thunderbird Victor Truica's techcave
http://truica-victor.com/plugins-for-thunderbird
Truica Victor blogging on tech, hosting and security. May 11, 2015. Must have plugins for Thunderbird. A “must have” should be placed in relation to the users needs. In my case, my requirements from an email client are not that diverse, but inclined towards security and efficiency. 8211; email encryption. And how to use Thunderbird with encryption. 8211; email transmission. Mailhops tells you the route that the email took from source to destination. Its flaws would include :. It has another function for ...
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crontab Archives - Victor Truica's techcave Victor Truica's techcave
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Truica Victor blogging on tech, hosting and security. Posts tagged with: crontab. Mar 30, 2015. The Linux crontab is relatively easy to understand. Still, it can generate a lot of frustration when debugging or even when creating an entry. In the present article I have gathered resources and information that I’ve used over the time when playing with cronjobs. SANS Tip of the day. Make sure each of your accounts has a separate, unique password. Can't remember all of your passwords/passphrases?
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puppet Archives - Victor Truica's techcave Victor Truica's techcave
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Truica Victor blogging on tech, hosting and security. Posts tagged with: puppet. Apr 7, 2015. Admin-in-a-Box – Provisioning and cloning for SMBs. Several months ago, I got my Bachelor in Product development and Technology Integration with a project on IT automation. Admin-in-a-Box – Provisioning and cloning for SMBs , a project that aims at increasing efficiency in IT department in Danish small and medium sized businesses. SANS Tip of the day. Try Control- Shift- Eject/Power. Getting the hang of fail2ban.