TCP/UDP Ports for Windows Server and Workstation

Hey Firewall Admin–please open up the following ports for me.  🙂 Port Protocol Application protocol System service name n/a GRE GRE (IP protocol 47) Routing and Remote Access n/a ESP IPsec ESP (IP protocol 50) Routing and Remote Access n/a AH IPsec AH (IP protocol 51) Routing and Remote Access 7 TCP Echo Simple TCP/IP

Set MTU packet size on an adapter

Warning: These setting affect all packets sent to all destinations and performance can severly be affected. This is registry modification to hardcode specific MTU sices on a particular network interface:   Click Start, click Run, type regedit, and then click OK. Locate the following key in the registry: HKEY_LOCAL_MACHINESYSTEMCurrentControlSet ServicesTcpipParametersInterfaces On the Edit menu, point

User logging in Windows for profile or group policy troubleshooting

This modification helps identify various logon problems including group policy processing and roaming profile issues. Very helpful but should be enabled for troubleshooting purposes only in verbose mode. Modify the following registry value: Subkey: HKEY_LOCAL_MACHINESoftwareMicrosoftWindows NTCurrentVersionWinlogon Entry: UserEnvDebugLevel Type: REG_DWORD Value data: 10002 (Hexadecimal) set this to 0x00030002 –this will give debug/verbose output: the log