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Archive for the ‘HowTo’ Category

VPN openvpn howto linux

November 17th, 2016 No comments

yum install -y openvpn
modprobe iptable_nat
echo 1 > /proc/sys/net/ipv4/ip_forward
iptables -t nat -A POSTROUTING -s 10.4.0.1/2 -o eth0 -j MASQUERADE
cd /etc/openvpn/
openvpn –genkey –secret vpn.key
vi openvpn.conf
openvpn.conf
port 8080
proto tcp-server
dev tun1
ifconfig 10.4.0.1 10.4.0.2
status server-tcp.log
verb 4
secret vpn.key

Categories: HowTo Tags: , ,

Reverse SSH Tunnel

November 14th, 2016 No comments

The idea is to have my IP autostart connect to my Cloud server,
this way I can remote control my Raspberry PI without having to configure DynDNS and firewall rules.
The only requsisite is that PI has internet and run a simple script on startup to estabilish the SSH tunnel

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Cisco auto login script

September 29th, 2016 No comments

Maybe you need to login in 500 differente switches and execute a command.

here is the solution:

Categories: Linux, Uncategorized Tags:

Nagios Notify html Script

September 29th, 2016 No comments

The default notification script for nagios is very simple, why not get more information on the email. Like: hostgroup, how long has the problem happened, link to the possible documentation. And format it in a nice html table.

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check hp array disk

September 21st, 2016 No comments

check HP array disks modified script to fix Upgrade situations

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Categories: bash, HowTo, Linux Tags:

embed github code in wordpress

September 15th, 2016 No comments

This is the simples way to embed a file from a github repository to your webpage/blog

Gist-it

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Categories: HowTo Tags: , ,

webinject auto create config

September 15th, 2016 No comments

Script to auto create webinject xml config files from a list of URL

./buildskel SKELFILE URLFILE FILEOUTPUT

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Categories: bash, HowTo, Linux Tags:

How to force ntpd time sync

September 14th, 2016 No comments

How to force time sync
Find out your ntpd servers:

grep server /etc/ntp.conf
service ntpd stop
ntpdate -s
service ntpd start

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Categories: HowTo, Linux Tags: , , , , ,

Can’t locate Sys/Statistics/Linux.pm

August 5th, 2016 No comments

When using check_stats.pl on Centos 7 I got a known error but not so easy to fix…

PROBLEM:
# su – nrpe -c “/usr/lib64/nagios/plugins/check_stats.pl -C -w 90% -c 95%”
Can’t locate Sys/Statistics/Linux.pm in @INC (@INC contains: /usr/lib64/nagios/plugins /usr/local/lib64/perl5 /usr/local/share/perl5 /usr/lib64/perl5/vendor_perl /usr/share/perl5/vendor_perl /usr/lib64/perl5 /usr/share/perl5 .) at /usr/lib64/nagios/plugins/check_stats.pl line 33.
BEGIN failed–compilation aborted at /usr/lib64/nagios/plugins/check_stats.pl line 33.

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Categories: Linux Tags: , ,

Access log to DB

May 24th, 2016 No comments

This script loads tomcat or apache logs into a mysql database.

Here is the code:

#!/bin/bash
#
# 2015-03-04 Nereu - versao Tomcat
#

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Categories: HowTo, Linux Tags: