• Lots of Linux Tips

    Let’s store more tips I’ve been collecting during last times. Export http proxy linux shell export http_proxy=http://10.0.0.1:61010 export https_proxy=http://10.0.0.1:61010 Apt-Cache madison It displays available versions of a package in a tabular format. Try with apt-cache madison myPackage Use of Grep Try the following: grep -v -e '^$' foo.txt The -e...


  • ELK the definitive guide

    INSTALL LOGSTASH-ELASTICSEARCH-KIBANA + LOGSTASH FORWARDERS These are my experiences with ELK, and I’m storing all I find useful or interesting here. In this tutorial, we will go over the installation of the Elasticsearch ELK Stack on CentOS 7-that is, Elasticsearch 1.4.4, Logstash 1.5.0, and Kibana 4. We will also show...


  • ELK on esteroids

    Ok, ELK is fashion now and you can find many documentation on how to install and configure ELK environments and more. But the problem comes when you want to make it work daily. Here are some ELK Tips, but first, Some important questions You cannot have more than one ES...


  • After a fresh minimal Debian install

    I do this many times when I play with VM’s (virtual machines); so I’ve to leave written all I normally do after a Fresh minimal Debian Install First of all, I’ve not set the apt repositories yet for a quicker install. $ echo "deb http://ftp.de.debian.org/debian stable main contrib non-free" >>...


  • More Linux Tips

    More than one line comment bash #!/bin/bash echo "Say Something" <<COMMENT1 your comment 1 comment 2 blah COMMENT1 echo "Do something else" Check tcp open ports While doing this, you’re checking if the port 1521 is open at the ip address, very useful when you don’t have nc netcat, mmap...