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Author: Andrea

Converting spreadsheets to text files with ssconvert

ssconvert is a utility shipped with Gnumeric, and it’s a command line spreadsheet converter.

Let’s say that you have some data in a spreadsheet (eg[……]

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Author AndreaPosted on January 25, 2017January 31, 2017Categories How To, Programming, TipTags BashLeave a comment on Converting spreadsheets to text files with ssconvert

Firefox – prevent websites from refreshing

Fed up with websites/tabs continuously reloading themselves and using resources unnecessarily?
Me too!

In firefox, you can disable this from the a[……]

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Author AndreaPosted on November 15, 2016January 26, 2017Categories TipTags Firefox, Web2 Comments on Firefox – prevent websites from refreshing

How to update all docker base images with one command

for docker in $(docker images|awk '{print $1,$2}'|sed 's/ /:/g'|grep -v REPOSITORY); do docker pull $docker; done

This command updates all your[……]

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Author AndreaPosted on October 4, 2016January 26, 2017Categories How To, Programming, TipTags Bash, Docker, Linux, One-linerLeave a comment on How to update all docker base images with one command

How to update all pip python packages with one command

sudo pip install -U `pip list -o|cut -d ' ' -f1|tr '\n' ' '`

NB: One liners are potentially destructive. Don’t run anything unless you fully un[……]

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Author AndreaPosted on September 11, 2016January 25, 2017Categories How To, Programming, TipTags Bash, Linux, One-liner, Pip, PythonLeave a comment on How to update all pip python packages with one command

Proxmox – Passthrough card/device to openVz container

I wanted to passthrough a dual tuner TV card (Hauppauge WinTV Nova-T-500) to an openVz container in order to use tvHeadEnd.

Here I show how to achi[……]

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Author AndreaPosted on February 23, 2014January 26, 2017Categories How ToTags Linux, ProxmoxLeave a comment on Proxmox – Passthrough card/device to openVz container

Use Remmina to satisfy all your remote connection needs

Remmina is a remote desktop client that support multiple network protocols (RDP, VNC, NX, XDMCP and SSH) in a nice and very user friendly GUI.

In i[……]

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Author AndreaPosted on February 13, 2014January 25, 2017Categories How ToTags Linux, OpenSource, ssh, UbuntuLeave a comment on Use Remmina to satisfy all your remote connection needs

Test email from command line

After having setup an email server (eg: using gmail as smtp server or sendmail as a SMART HOST or any other way you want..) you need to test it.[……]

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Author AndreaPosted on August 7, 2013January 25, 2017Categories How To, TipTags Bash, Linux, mailLeave a comment on Test email from command line

PHP: remove duplicate elements from a multi-dimensional array

array_unique removes duplicate values from an array. Unfortunately it doesn’t work with multi-dimensional arrays.

A quick workaround is to serializ[……]

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Author AndreaPosted on December 9, 2012January 25, 2017Categories How To, Programming, TipTags PHP1 Comment on PHP: remove duplicate elements from a multi-dimensional array

Ban offending IP addresses – fail2ban

If you have logwatch installed (or you read auth.log file) you can find lots of entries mentioning login attempts/attacks.
Something like:

Nov 20[......]

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Author AndreaPosted on November 25, 2012January 25, 2017Categories How ToTags iptables, Linux, Security, sshLeave a comment on Ban offending IP addresses – fail2ban

Send system emails using gmail as smtp server

I wrote before about sending system emails using sendmail as smarthost.
Today I describe how to do that using gmail smtp servers.
The software that[……]

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Author AndreaPosted on October 15, 2012January 25, 2017Categories How ToTags Linux, mail1 Comment on Send system emails using gmail as smtp server

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