How to disable Iptable on Ubuntu.

How to disable iptables on Ubuntu.


Sudo ufw disable

After that check:

ipatables -L

How to secure/encrypt the shell script.!

If you wanted to encrypt the shell script, Or you need to do secure the shell script. Please use this tool.

Install with (binary) source.
# wget http://www.datsi.fi.upm.es/~frosal/sources/shc-3.8.7.tgz
# tar xvfz shc-3.8.7.tgz
# cd shc-3.8.7
# make

Or
Install with Yum repository.

yum install shc -y

Run the script with sevral options.

$ ./shc -v
shc parse(-f): No source file specified

shc Usage: shc [-e date] [-m addr] [-i iopt] [-x cmnd] [-l lopt] [-rvDTCAh] -f script



Create the test shell script.
--------------------------
#! /bin/bash

echo " Hey Hello.!"

--------------------------
If installed with yum please do this

$ shc -f filename.sh
After run this command you will find two more file with the name as follows.
Original file : filename.sh
C compile file : filename.x.c
Encripted File: filename.x

And if you run the command like:

$./filename.x
o/p: Hey Hello.!

ossl_ssl.c:110:1: error: ‘SSLv2_method’ undeclared here (not in a function)

When building any ruby verison  on Ubuntu, If you got following error:
_________________________________________________________________
Error:
ossl_ssl.c:110:1: error: ‘SSLv2_method’ undeclared here (not in a function)
ossl_ssl.c:111:1: error: ‘SSLv2_server_method’ undeclared here (not in a function)
ossl_ssl.c:112:1: error: ‘SSLv2_client_method’ undeclared here (not in a function)
make[1]: *** [ossl_ssl.o] Error 1
make[1]: Leaving directory `/home/shrii/.rvm/src/ruby-1.9.2-p180/ext/openssl’
make: *** [mkmain.sh] Error 1

_________________________________________________________________




Please do this :

sudo rvm pkg install openssl
sudo rvm install ruby-1.9.2-p180 –with-openssl-dir=$rvm_path/usr

Resolved.!

Depends: libc6-i386 (>= 2.7) but it is not going to be installed

Hi Guys,

If you are trying to install any application on ubuntu and face this type of error:

-------------------------------------------------------------------------------------
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies:
 teamviewer7 : Depends: libc6-i386 (>= 2.7) but it is not going to be installed
               Depends: lib32asound2 but it is not going to be installed
               Depends: lib32z1 but it is not going to be installed
               Depends: ia32-libs but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution)
--------------------------------------------------------------------------------------

It manse you not able to install any package till resolve the dependency.

And the Solution is as follows :  So right now error for package teamviewer7

 apt-get purge teamviewer7

Resolved.!