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foodforblogger.blogspot.com

Free Blogger Resources: Who is database and IP Track Down database

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Who is database and IP Track Down database. In some cases, you get a domain name, and want to know who owns it. You can do this by perform a who is database search. Here is a fairly complete list for famous who is databases:. In other cases, you may find that your computer is sending packets to strange IP address. You can find out where the IP address is located by perform a location lookup on the IP address. My favorites are IP2Location. And GeoBytes IP Locator. Of New York State. Do you like this blog?

foodforblogger.blogspot.com

Free Blogger Resources: Free resources to promote your website

http://foodforblogger.blogspot.com/2009/11/free-resources-to-promote-your-website.html

Free resources to promote your website. Check out SiteSell Value Exchange. Salessitesell.com/value-exchange/). It (1) registers your site as willing to exchange links with other sites that have a similar theme/topic content and (2) searches for sites with similar topical content. Subscribe to: Post Comments (Atom). Do you like this blog? Free resources to promote your website. Visit @ Cyber Jedi.

cyberjedizen.blogspot.com

Cyber Jedi -- About hardware, programming, network and self-improving: Linux Commands - system administration

http://cyberjedizen.blogspot.com/2009/11/linux-commands-system-administration.html

Blogumulus by Roy Tanck. Monday, November 16, 2009. Linux Commands - system administration. Su - log into root account. Df - quick check for the disk space. "df -h -T" -h let output human readable, -T shows the file system type. Du - quick check for file size. "du -h" shows the size of folders and files under current directory in a more readable format. Finger - check who is on the system. fingure followed by user id shows detail history of a user. Id - print user and group id. Groups - view the groups a...

xyznetwork.blogspot.com

XYZ NETWORK: Ports, Sockets, Port Numbers and Multiplexing

http://xyznetwork.blogspot.com/2009/07/ports-sockets-port-numbers-and.html

Ports, Sockets, Port Numbers and Multiplexing. Both TCP and UDP protocol support multiplexing. A PC might be running many network applications. When a packet arrives, the computer must decide to which application the packet should go, this process is called multiplexing. Multiplexing relies on the concept of socket. A socket. The Well Known Ports. Are those from 0 through 1023, includes the commonly used port numbers for well-known Internet services. For example:. Port 21 for FTP. Port 22 fro SSH. Are th...

xyznetwork.blogspot.com

XYZ NETWORK: Crosstalk

http://xyznetwork.blogspot.com/2009/08/crosstalk_31.html

Is unwanted signals coupled between adjacent wire pairs. Since 1000BASE-T uses all four wire pairs, each pair is affected by crosstalk from the adjacent three pairs. Crosstalk is characterized in reference to the transmitter. At higher transmission frequencies, the crosstalk will increase, result in the destruction of more of the data signal. Is crosstalk that appears at the output of a wire pair at the transmitter (near) end of the cable. Equal level far-end crosstalk (ELFEXT). ICND1 and ICND2 break down.

xyznetwork.blogspot.com

XYZ NETWORK: Should You Take The Single or the Two Exam Approach To CCNA?

http://xyznetwork.blogspot.com/2009/06/should-you-take-single-or-two-exam.html

Should You Take The Single or the Two Exam Approach To CCNA? With the latest version of the CCNA exam, Cisco offers two possible exam track options of either one or two exams. See also  CCNA break down. 1) The Single Exam Approach. Exam Number: 640-802 CCNA. The exam consists of 50-60 questions over 90 minutes and covers all CCNA exam topics. 2) The Two Exam Approach. Exam Numbers:  ICND1 and ICND2. The two exam approach consists of 640-822 ICND1 and 640-816 ICND2. If you are well prepared for the exam t...

xyznetwork.blogspot.com

XYZ NETWORK: Ethernet Addressing

http://xyznetwork.blogspot.com/2009/07/ethernet-addressing.html

Ethernet at the Data Link layer is responsible for Ethernet addressing, commonly refered to as hardware address or MAC addressing. Ethernet address, also called MAC address, hardware address, physical address, burned-in address (BIA) is a 48-bit number used to uniquely identify each computer in a network. The address is usually written in hexadecimal form (e.g. Packets sent to the broadcast address. Do not confuse an Ethernet address with an. Internet Protocol ("IP") address. Is a hardware device that ha...

xyznetwork.blogspot.com

XYZ NETWORK: ICND1 break down -- What is A Network

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ICND1 break down - What is A Network. The Advanced Research Projects Agency (ARPA) designed "Advanced Research Projects Agency Network" (ARPANET) for the United States Department of Defense. It was the first computer network in the world in late 1960s and early 1970s. By definition, a computer network is a connected collection of devices and end systems, such as computers and servers, that can communicate with each other. A computer network have four major categories of interconnected hardware devices.

xyznetwork.blogspot.com

XYZ NETWORK: Ethernet Frame

http://xyznetwork.blogspot.com/2009/10/ethernet-frame_22.html

LLC header and Data (802.2 Header and Data). 8212; synchronize the signals of the communicating computer, but really not counted as part of the 14-byte frame header. This field contains bits that signal the receiving computer that the transmission of the actual frame is about to start and that any data following is part of the actual frame. 8212; the address of the NIC to which the frame is being sent. Can be Unicast, multicast, or broadcast. 8212; A 4-byte. ICND1 and ICND2 break down. 64 bytes - 14 byte...

xyzcode.blogspot.com

XYZ CODE: Create executable Java applications with a main method; run a Java program from the command line; including console output.

http://xyzcode.blogspot.com/2016/02/create-executable-java-applications.html

Saturday, February 27, 2016. Create executable Java applications with a main method; run a Java program from the command line; including console output. Java command is used to run the compiled bytecode, the .class need to be omitted in java command. Java program calls main() method to start a Java process. The JVM allocate resources for the process to run. The following are all valid main() method signatures:. Public static void main(String[] args) {}. Public static void main(String args[]) {}. OCAJP ja...