TIPS N TRICKS PARADIGM

Ethernet Cable Color Coding Diagram for:   ·         Category-5 cables ·         Category-5E cables ·         Category-6 cables ·         Category-6E cables The information listed here is to assist network administrators in the color coding of Ethernet cables. Please be aware that modifying Ethernet cables improperly may cause loss of network connectivity. Use this information at your own risk, and ensure all connectors and cables are modified in accordance with standards. The Internet Centre and its affiliates cannot be held liable for the use of this information in whole or in part. T-568A Straight-Through Ethernet Cable   The TIA/EIA 568-A standard which was ratified in 1995, was replaced by the TIA/EIA 568-B standard in 2002 and has been updated since. Both standards define the T-568A and T-568B pin-outs for using Unshielde...

  A virtual private network (VPN) protects your data and identity over public networks, like the Internet and wireless hotspots. Various protocols are used to create an encrypted tunnel that transports data securely. While a firewall may protect the data on your computer, a VPN will protect your data on the Internet. The goal of a VPN is to implement the same level of security provided by private networks at substantially lower costs.   Why use a VPN? Most VPN's are used to add security. Today's world is evolving quickly and the security pitfalls of modern conveniences are often ignored. Public WIFI hotspots, common in airports and coffee shops, are a hackers dream because they offer streams of visible data waiting to be mined. Using a VPN keeps your information secure. Deep Packet inspection is another growing concern. Many ISPs would like to analyze statistics from your online activities for marketing and routing purposes. Using a VPN thwarts efforts to conduct dee...

Samba Configuration There are four things that one can do with samba: Share a Linux drive with   Microsoft windows machines Share a windows drive with   Linux   machines Share a Linux printer with   Microsoft windows machines Share a windows printer with   Linux machines Web Based Samaba Configuration Tool To configure from web or browser , there is a tool SWAT. SWAT – Samab Web Administration Tool It works through xinetd.conf. 1. Go to /etc/xinetd.d/ and edit swat. 2. Change the key word                 only_from = host_name like linux1 or 192.168.1.1 3. Kill and run xinetd daemon 4. Go to /etc/httpd/conf/httpd.conf                 Change the following   tag                ...

   PPP dial-in and dial-out server configuration  ISP Connectivity ISP connectivity is one type of serial connection. TCP/IP runs over a wide varity of physical media. The media can be Ethernet cables, as in your local Ethernet, or telephone circuits as in a wide area network. All most all data communications takes place via serial interfaces. A serial interface is just an interface that sends data as a series of bits over a single wire, it is just opposite of parallel interface that sends data bits in over several wires simultaneously. In TCP/IP world, dial-up serial connections are popular due to low cost. TCP /IP supports two types of serial line protocol : (1)Serial Lne Interface Protociol (SLIP) and (2)Point-to-Point Protocol(PPP). (1)SLIP: This protocol has some deficiencies, which fall into two categories: The SLIP protocol does not define any link control information that could be used to dynamically control the characteristics o...