Redis installation in Ubuntu 12.04 with init support

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Here is a quick installation script to install redis in ubuntu 12.04 with init support:

I am using redis version: 2.6.13

https://raw.github.com/rrana/installation-scripts/master/redis-installation-ubuntu.sh

wget https://raw.github.com/rrana/installation-scripts/master/redis-installation-ubuntu.sh

sudo sh redis-installation-ubuntu.sh

You can check your installation with a ping in redis cli:

~$ redis-cli

redis 127.0.0.1:6379> ping
PONG
redis 127.0.0.1:6379>

All this installation script does is just download the redis source and compile it locally and then run a script supplied by redis to create the necessary redis init configuration.

Before running the script please make sure that your are downloading the latest stable release of redis from: http://redis.io/download

Then simply change the download information (line 8), tar file name (line 9), and directory name (line 10) in the script.

 

Apache (and nginx) log parsing with goaccess

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Goaccess is a realtime log parser utility and very handy to get some quick insights from your log file.

http://goaccess.prosoftcorp.com/

ubuntu 12.04 Installation:
apt-get install goaccess

Download/Install instruction for older releases and other distribution:

http://goaccess.prosoftcorp.com/download

To parse all log files (including .gz ones):
zcat -f access.log* | goaccess -a -s -b

libxml2.so.2 problem Ubuntu 12.04 (apache, php5, wordpress)

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(This is a note I’m keeping for my future references)

I was doing a wordpress installation in EC2 instance using Ubuntu 12.04 with Apache and php5. Found this error during apache reload.

Error Message:
root@ip-*-190-46-*# /etc/init.d/apache2 restart
apache2: Syntax error on line 203 of /etc/apache2/apache2.conf: Syntax error on line 1 of /etc/apache2/mods-enabled/proxy_html.load: Cannot load /usr/lib/libxml2.so.2 into server: /usr/lib/libxml2.so.2: cannot open shared object file: No such file or directory
Action ‘configtest’ failed.
The Apache error log may have more information.
…fail!

SOLUTION: (Please note, there might be a package version number difference. So match the file names with your downloaded package version)

# aptitude download libxml2
# ar -xf libxml2_2.7.8.dfsg-5.1ubuntu4_amd64.deb

You will get the following files extracted from the deb package:
control.tar.gz data.tar.gz debian-binary libxml2_2.7.8.dfsg-5.1ubuntu4_amd64.deb

# rm libxml2_2.7.8.dfsg-5.1ubuntu4_amd64.deb
# rm control.tar.gz

# tar xf data.tar.gz
# cd usr/lib/x86_64-linux-gnu/

Check if you have the following files here:
libxml2.so.2 libxml2.so.2.7.8

# mv * /usr/lib/x86_64-linux-gnu/
# cp /usr/lib/x86_64-linux-gnu/libxml2.so.2* /usr/lib/
# /etc/init.d/apache2 start

And thats it!