Windows – What are Ports needed for Active Directory ?

In order to add a machine to the Active Directory (Domain) or to allow you machine to speak with a Domain Controller you will need to open the following ports, LDAP         – TCP+UDP/389DNS          – UDP/53SMB          – UDP/138SMB          – TCP/445 Kerberos   – UDP/88

Check Point – Installing an HFA

HFA stands for Hot fix accumulator. Which is a bit like a Windows Service Pack but for your Check Point Firewall.The documentation from the Check Point site on how to install these, is very good, and also contains the IPSO installation instructions. Below are the basic instructions on how to install the latest HFA 30 … Read more

Common Sed Examples

Below are some of the common uses and commands for sed that I have come across over the years, Find and Replace sed -i ‘s|arp|/sbin/arp|g’ /etc/init.d/proxyarp Find and Delete sed -e ‘/^$/d’ file.txt Remove Multiple words This will remove word, word1, or word2 from the file input.txt sed ‘s/word\|word1\|word2//g’ input.txt Change the first instance on … Read more

Router – Named Access-Lists

Below gives you an example of how to create a named Access-List, router(config)#ip access-list extended OUTSIDE_INrouter(config-ext-nacl)#permit ip any any 

Windows – I can`t connect to my Wireless Network

Issue  I can see my wireless network but when i try to connect it says that it maybe out of range and that it cannot connect. But I can connect using a 3rd Party program such as Netgear Smart Wizard etc ?? Whats going on ?? Solution Check to see if you have set up … Read more

Cabling Connectors

Below is a reference for the various cabling connectors, Fibre LC (Local Connector)   F Type MT-RJ   SC (Standard Connector) ST (Straight Tip)

XP – Cannot login to Domain

This can be down to many many reasons. One reason can be due to “trust relationship between this workstation and the primary domain failed”. You can resolve this by adding the machine back to a workgroup then adding it back into the domain. Further information can be found here www.support.microsoft.com/kb/162797