Adding or editing the IP address on a Solaris 10 server is different from the previous versions of the OS (Solaris 9, Solaris 8 etc). In the previous versions of the Solaris Operating System, you need to edit the /etc/hosts file and add/edit the entry for the IP address and the hostname.Read More →
PTR Records are called as the Pointer Records. These are called as the Reverse DNS Records as it is used for reverse DNS lookups. The DNS best practices suggest that every host on the Internet that has a A record assigned should have a PTR record assigned to its IP address.Read More →
Map your Cisco Catalyst switchports with Switch Miner. Switch Miner is a lightweight command line tool for Windows that queries Cisco switches using SNMP to discover the devices that are connected to the switchports.Read More →
If you have a big network with multiple Access Switches connecting to the core switches or routers then tracing a device like a PC or a laptop for troubleshooting or security purposes is one of those tasks that you often end up doing. This is not a difficult task but can certainly be time consuming.Read More →
If you have a network with multiple VLANS then it is important to have a descriptive name given to these VLans to identify and for ease of management. In Cisco IOS this can be done from the vlan database configuration modeRead More →
A DHCP server is the one which provides a network client with a unique IP address, Subnet mask, Gateway and DNS server IP address automatically when it connects to the network. A DHCP Relay Agent is a computer, server or a Router in a particular subnet which receives a DHCP client broadcast and relays it to a DHCP server in another network or a subnet. A DHCP Relay Agent is more a helper agent here that gets the client a DHCP lease.Read More →
Anytime you use an internet connection in a public place like a public wireless hotspot or a hotel room internet acces, you put your data at risk. All data you send can be intercepted easily and quickly by those hackers out there looking for a victim, without your knowledge. Your data could be anything from email address, passwords, emails, Instant Messages or even credit card details.Read More →