November 13, 2011
by IP Location
A Virtual Private Network (VPN) is a network technology which extends private network (such as LAN) over a public network such as the Internet. A VPN allows a computer (or a network) to be connected securely as if they are physically wired together. Corporations use VPN to allow remote workers to connect securely to their private network. A VPN is also used...
October 10, 2010
by IP Location
ยท 2 comments
You have a private or public network with servers and workstations that are assigned static and dynamic IP addresses (either private or public IPs). You assigned them the static IP addresses due to NAT (Network Address Translation) or for public access, and dynamic IP addresses via the DHCP. Even if you kept a good record of those assigned IPs, there are tim...
November 9, 2009
by IP Location
WAP stands for Wireless Application Protocol. This is a well-known and commonly used standardized protocol which defines how wireless communication can take place between mobile devices and a wireless network. This could include devices such as radio transceivers, cell phones, world wide web, newsgroup, instant messaging and any device that can be used for I...
March 4, 2009
by IP Location
A Wi-Fi (also known as WiFi) is a wireless network technology which allows WiFi enabled devices to communicate with each other, and also share the Internet without wired connectivity. Wi-Fi is based on 802.11 IEEE network standard which uses radio frequency signals to transmit data. The distance supported by Wi-Fi network depends on the type of Wi-Fi radio a...
February 5, 2009
by IP Location
Often times we see a networked printer suddenly stop working and you need to find a static (private) ip address of the printer to diagnose further. How do we find IP address of a networked printer? There are a few different ways to go about finding it.
April 18, 2008
by IP Location
RJ-45 conductor data cable contains 4 pairs of wires each consists of a solid colored wire and a strip of the same color. There are two wiring standards for RJ-45 wiring: T-568A and T-568B. Although there are 4 pairs of wires, 10BaseT/100BaseT Ethernet uses only 2 pairs: Orange and Green. The other two colors (blue and brown) may be used for a second Ether...
March 21, 2008
by IP Location
The two methods described below are extracted from the lartc howto. It is
included here to provide a complete reference. For latest updates, please
view source document.
March 20, 2008
by IP Location
ยท 4 comments
Denial of service attacks are major nuisance for web hosts, and as a web host
you'll have to take every measure to protect your resources from DoS attacks.
Our APF, BFD, DDoS and RootKit
article describes Linux utilities available to protect from DDoS attack, and
also explains installation procedures. This article supplements above article
by providin...
March 19, 2008
by IP Location
Being a web host, your servers are constantly being attacked by hackers by
denial-of-service (DoS) and other brute
force attacks. There is no foolproof
method to stop 100% of all attacks, but there are ways to protect your servers
by applying firewall rules, and detecting and banning attacking IPs.
March 18, 2008
by IP Location
DoS attack, denial-of-service attack, is an explicit attempt to make a computer resource unavailable by
either injecting a computer virus or flooding the network with useless traffic. In simple words, it is similar to thousands of people trying to enter a room from a single entrance, ultimately causing havoc. This not only disturbs the normal operations o...