Networking

Noticed this problem in Windows 7 and windows 10 systems after adding the system to a windows Domain Controller. The scenario is like this, nslookup query will reply a wrong result if you run the DNS query with a different DNS server. Eg: nslookup google.com 8.8.8.8 (Here it is trying to get IP address of Google from Googles dns server.) …

“ANY” (*) DNS Query is used by VMware Data Protection (VDP) After a VMware migration from version 4.5 to 5.5, I struck-up in the installation of VMware Data Protection (VDP) 6.1.1. The deployment of VDP appliance got succeeded. But while configuring the appliance through the web browser (link : https://vdp.example.com:8543/vdp-configure/), it return an error. “IP/DNS could not be resolved. Please …

The stock firmware in most of the wireless routers are severely limiting in features and performance. To make the most out of your router, you can switch to alternate firmwares like DD-WRT, OpenWRT, Tomato etc. However the alternate firmwares are in a constant state of development, which are mostly done in the spare time of developers. There are no ETA …

Here we are explaining how to configure ESXi server and Foundry Bigiron  switch for Link aggregation ( LACP ).  It is known as NIC teaming In VMware virtualization. Make sure that you have a Esxi configuration backup before the changes. There are different type of network load balancing mechanisms. here we are using “Route based on IP hash” Configuring Foundry …

Pfsense is a FreeBSD based Open source security distribution. Pfsense is basically using as a gateway device (firewall and router). But it can be expandable as many Server services like DNS, DHCP, Proxy Servers. Here I is the step by step procedure to install a Pfsense based Proxy server. Download pfSense CD from here http://www.pfsense.org/mirror.php?section=downloads Write The ISO file to …

Error : Multiple connections to a server or shared resource by the same user, using more than one user name are not allowed. Disconnect all previous connections to the server or shared resource and try again. This error may occur in the networks if some previous sessions of network shares still exist in the cache. the shares many be connected …

Error : The terminal server has exceeded the maximum number of allowed connections Windows servers can establish only two remote desktop connections simultaneously. But if the session is in Disconnected mode ( If its close without log off  ) you can access this session again. But if any two sessions are logged in you cannot get a new RDP Connection. …

Hi all, I want to share this think with you. Cisco crazy people I don know how they are practicing. Some one may still use lazy boson simulator and some one may use cisco packet tracer. When compared to them the “DYNAMIPS “emulator completely differs. The cisco packet tracer or Boson is just simulators. I want to introduce a new …

With RAS key authenticating mechanism, you can login (using SSH ) to a server without providing the password. RSA is an algorithm for public-key cryptography. This process is most suitable for working automated process. For automating backups or run some jobs frequently in a trusted server this will contribute an important role. And the other advantage of RSA key authentication …

I hope most of you know about what is what about DNS, the mighty ” Domain Naming System ( or Service or Server ). This DNS is used for Name resolution purposes. So why name resolution is needed ? ( Many questions ha ? ). In early days Http and other services were accessed by concern server IP addresses, but …