Chris Partsenidis Founder - Firewall.cx - SearchUnifiedCommunications ComputerWeekly.com ISDN implementation: Part 1 -- Understanding the standard 05 Jun 2007 SearchNetworking Understanding the ISDN standard 04 Jun 2007 SearchNetworking Can a machine with a single DNS name have multiple addresses? 18 Apr 2007 SearchNetworking How are IP addresses and subnet masks calculated? 15 Mar 2007 SearchITChannel An introduction to IP addressing and subnet masks 15 Jan 2007 SearchITChannel Assigning an IP address ending in .0 or .255 15 Jan 2007 SearchNetworking What are the advantages of a UTP over a coax, and how do the two networks differ? 03 Jan 2007 SearchNetworking Is it possible to convert a Layer 2 switch to a Layer 3 switch? 03 Jan 2007 SearchNetworking Why does my network go down every night? 24 Apr 2006 SearchNetworking What is difference between a WINS server and a DNS server? 26 Oct 2005 SearchNetworking How can I increase bandwidth at my Internet cafe? 13 Sep 2005 SearchNetworking What is a network sniffer? 03 Aug 2005 SearchNetworking In a LAN environment, which is better: Token Ring or Ethernet and why? 03 Aug 2005 SearchNetworking Cannot connect to Internet or local network while on the VPN 22 Jun 2005 SearchSecurity Popular VLAN attacks and how to avoid them 23 May 2005 SearchNetworking Having two gateways for a network with two routers 25 Apr 2005 SearchNetworking Configuring main and backup leased lines 01 Apr 2005 SearchNetworking How can I access my Cisco router from the Internet? 30 Mar 2005 SearchNetworking Is VTP a proprietary protocol of Cisco? 28 Mar 2005 SearchNetworking How do I connect to my LAN from the Internet? 28 Mar 2005 SearchNetworking Can you assign an IP address ending in .0 or .255? 11 Jan 2005 SearchNetworking How do I connect my managed switch to a patch panel? 11 Jan 2005 SearchNetworking How can I reduce the number of broadcasts on my network? 09 Sep 2004 SearchNetworking Can you please explain how a DHCP server allocates IP addresses dynamically? 09 Aug 2004 SearchNetworking When a user is unable to access certain Web pages, what is the first thing I should do to try to loc 30 Jun 2004 SearchNetworking What are the minimum and maximum sizes of an ICMP packet? 30 Jun 2004 SearchNetworking Why is it useful to use both a physical and a logical network design? 30 Jun 2004 SearchNetworking How do I control Internet bandwidth per IP on my LAN? 23 Apr 2004 SearchNetworking Tips on working with VLSM 23 Apr 2004 SearchNetworking How can I see who is using the most of our Internet bandwidth over our LAN? 23 Apr 2004 SearchNetworking Is it possible to determine the NIC speed of a remote workstation on my LAN? 23 Apr 2004 SearchNetworking How do secondary networks work? 17 Mar 2004 SearchNetworking Are packets sent inside frames, or are frames inside packets? 17 Mar 2004 SearchNetworking Restricting access between two LANs 24 Feb 2004 SearchNetworking How do I evaluate the performance of a LAN setup? 24 Feb 2004 SearchNetworking Do simultaneous uploads slow down my downloads? 24 Feb 2004 SearchNetworking What is the difference between internal and external commands? 11 Feb 2004 SearchNetworking What would be the best, or easiest, way of increasing the number of IP addresses we have at our disp 19 Dec 2003 SearchNetworking What is the difference between physical design and logical design of a network? 19 Dec 2003 SearchNetworking How can I share a dedicated lease line from one building to another? 19 Dec 2003 SearchNetworking What is the difference between active hub and passive hub? 13 Nov 2003 SearchNetworking What is FastPing and what is it used for? 13 Nov 2003 SearchNetworking What does the twist in the Cat5 cable do? 24 Oct 2003 SearchNetworking What is a smart hub as opposed to one that is not (dumb hub)? 17 Oct 2003 SearchNetworking Can I create a network with two computers using a regular modem? 17 Oct 2003 SearchNetworking Is it possible to connect a switch to a hub with a distance of 100 meters or more? 17 Oct 2003 SearchNetworking How does the sender of a data packet know the IP address of the receiver? Part 1 08 Oct 2003 SearchNetworking How does the sender of a data packet know the IP address of the receiver? Part 2 08 Oct 2003 SearchNetworking What factors influence the choice of category 5 UTP cable and 100BaseT architecture for the office? 06 Oct 2003 SearchNetworking How many different kinds of LAN cards are there? 06 Oct 2003 SearchNetworking I need to connect a printer through the print server to a serial port on a Digiboard in order to ena 06 Oct 2003 SearchNetworking Virtual LANs -- Basics 25 Sep 2003 SearchNetworking Sometimes I get a message, 'port already open." What does it mean? 19 Sep 2003 SearchNetworking What does it mean to 'split your network?' 19 Sep 2003 SearchNetworking What are the benefits and drawbacks of Logical Network Design? 11 Sep 2003 SearchNetworking Why does the OSI model have 7 layers - no more no less? 11 Sep 2003 SearchNetworking Can csma/cd technology be used in ring topology? 04 Sep 2003 SearchNetworking Troubleshoot your SOHO network connectivity issues with this... 22 Aug 2003 SearchNetworking Is frame relay a level two protocol? 21 Aug 2003 SearchNetworking What layer of the OSI model is used when using specific client software which transfers files to a s 21 Aug 2003 SearchNetworking Guidelines for designing a LAN 13 Aug 2003 SearchNetworking How do I connect a new 16-port switch to an existing hub? 13 Aug 2003 SearchNetworking MAC address tutorial 13 Aug 2003 SearchNetworking Basics on subnet masks and IP addresses 13 Aug 2003 SearchNetworking Lesson on half/full duplex communications and hubs and switches 29 Jul 2003 SearchNetworking What is the maximum length of a cable in a local LAN set up? 29 Jul 2003 SearchNetworking Is there a minimum length for a CAT5 patch cable? 29 Jul 2003 SearchNetworking Can I just pick and use any DNS server on the Internet? 07 Jul 2003 SearchNetworking VLAN alternatives and solutions 07 Jul 2003 SearchNetworking OSI Crash Course 101 07 Jul 2003 SearchNetworking What is fragmentation? How is it handled in IPv4 and IPv6? 12 Jun 2003 SearchNetworking What is a "Latent Network"? 12 Jun 2003 SearchNetworking Can't contact or find server using the domain name 05 Jun 2003 1 2
