install fail2ban ubuntu 10.10

How to install fail2ban on ubuntu 10.10

Install Fail2ban

# apt-get update # apt-get install fail2ban

List IPtables to see if it is running

# iptables -L

You will see this at bottom of IPTables:

Chain fail2ban-ssh (1 references) target prot opt source destination RETURN all — anywhere anywhere

Copy the default .conf file so . . . → Read More: install fail2ban ubuntu 10.10

howto use htaccess apache

howto use htaccess apache

I just came across a great article that give at least a hundred htaccess examples in different situations. It can be found here.

Table of Contents General htaccess definition htaccess comments important information performance issues regex character definitions redirection header codes Essentials htaccess comments enable basic rewriting enable symbolic links enable . . . → Read More: howto use htaccess apache

GNS3 – Graphical Network Simulator Train for CCNA, CCNP, CCIP, CCIE, JNCIA, JNCIS, JNCIE

GNS3 is a graphical network simulator that allows simulation of complex networks.

To allow complete simulations, GNS3 is strongly linked with :

Dynamips, the core program that allows Cisco IOS emulation. Dynagen, a text-based front-end for Dynamips. Qemu, a generic and open source machine emulator and virtualizer.

GNS3 is an excellent complementary tool to . . . → Read More: GNS3 – Graphical Network Simulator Train for CCNA, CCNP, CCIP, CCIE, JNCIA, JNCIS, JNCIE

Howto: See if a local port is listening from command prompt

List local/remote socket and PID for all TCP connections in “Established” state:

netstat -ano | find /i “established”

List local/remote socket for all TCP connections in “Established” state (sometimes you get more than above):

netstat -an | find /i “established”

List connections over time (netstat_check_connections.bat):

@echo off for /L %%X in (1,1,4) do (netstat -b . . . → Read More: Howto: See if a local port is listening from command prompt

ntop what programs are using the most traffic

What is ntop?

ntop is a network traffic probe that shows the network usage