Emil C – Page 3 – Emil CHERICHES

Use wheezy-backports and set it as default

January 4, 2014 Emil C

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Because Debian Linux distro has it’s way of testing packages before they end up in the stable version, these packages might be sometimes outdated or you just wand to benefit from the newest functionalities for some packages. Debian Backports is a repository that you can use for these cases. In…

OpenVPN and Android

October 28, 2013 Emil C

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To be honest I use OpenVPN quite rarely on my Android tablet, and it happens only when I need to access certain locations that tie me to a certain IP address. This type of connection could be more often used when the tabled would serve as an email reading device…

Tips & Tricks Android OpenVPN

Hosting Websites with Apache and Nginx on Debian Wheezy

October 25, 2013 Emil C

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Ever since the “Linux From Scratch” craziness went away I’m loving to do things “the distro way”. Doing so ensures you that your configurations won’t break when you do system upgrades and thus you can do the upgrades and be always patched and as safe as possible. Nginx is the…

linux Apache debian FPM Nginx php

TIP: Debian/Ubuntu prevent accidental halts/reboots

August 15, 2013 Emil C

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If you’re connected to a server via SSH as root and accidentaly you type in “reboot” or “poweroff” this might really happend. To avoid this you could simply install a package: apt-get install molly-guard After this, if you type, for instance, “reboot” you will be prompted with your server’s hostname…

linux debian ubuntu

TIP: Make Postfix use less SQL connections

August 9, 2013 Emil C

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When you manage Postfix mail servers using SQL connections to find informations about usernames, mailbox/maildir locations on the disk you probably have in your main.cf something like : virtual_alias_maps = mysql:/etc/postfix/mysql_virtual_alias_maps.cf virtual_mailbox_domains = mysql:/etc/postfix/mysql_virtual_domains_maps.cf virtual_mailbox_maps = mysql:/etc/postfix/mysql_virtual_mailbox_maps.cf relay_domains = mysql:/etc/postfix/mysql_relay_domains_maps.cf But, this way, each process(postfix process) uses one MySQL connection.…

Tips & Tricks MySQL Postfix

Why caching is good

July 9, 2013 Emil C

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What is caching? Basically is a way of saving computational power when a server that hosts an app is serving the same content several times, to several users. Our app would normally save the output of some internal work either on the server’s hard drive as files either in memory…

Web development cache php smarty

Basic OS RAM Memory consumption

March 20, 2013 Emil C

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I was well impressed to see how low on memory consumption a Gnome Shell Ubuntu version can go. 255 MB of RAM with two terminal and a nautilus windows opened, and it’s a system already being used, true not as my main PC (as it’s a EeePC) but I still…

just blog GNOME ubuntu

Tip: Assuring users can’t read each others files

March 15, 2013 Emil C

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On a Debian or Ubuntu system, we need to make sure that when a new user is created it’s files are not generally available for reading to other non-root users. By default home folders are created with 0755 permissions (readable by everyone). To change this we just need to adjust…

Tips & Tricks debian ubuntu

a windowed “experience” …

March 15, 2013 Emil C

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So, being a Linux Sysadmin doesn’t make me see things only grey on black, though it’s the most of the time. Recently I wanted to see how things work on the Windows side of the fence so I started to install a Windows Small Business Server 2008 Standard into a…

Windows debian ubuntu windows

My first bug report to CM

March 13, 2013 Emil C

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I have a Galaxy Tab 2 10.1 (P5110) and for a while now I use the nightly builds of CyanogenMod. I have had issues/bugs before, but it was nothing like “unusable device”.

Phones & Tablets Android CyanogenMod