Separation of Physical Networks via VLANs and Security Issues Therein
Our company is looking to redo some networking infrastructure. Previous IT administrators created a daisy chain network topology and all information types, from APs to workstations aggregate on a single network. Lately we have seen some performance issues and wish to rewire much of our network into a star topology network. While doing so, we [...]

Answer Question   |  March 31, 2009  4:24 PM
Network design, Network infrastructure, VLAN, VLAN configuration, VLAN management

Advice on Certs and networking career
I was promoted from a tech support position to an entry level NOC Tech position in my company. I don’t have a degree or any certs and I have no experience with networking. Right now I mostly monitor NMS alarms and work tickets. Not really any networking invlolved but networking is where I want to [...]

Answer Question   |  February 14, 2011  3:32 PM
Certifications, Cisco certifications, IT careers, Networking careers, Networking certifications

Detecting reverse proxy
I am trying to enforce an Army policy to ensure all .mil websites are behind a reverse proxy. Is there any way to see if the site is behind a proxy? Thanks!

Answer Question   |  March 31, 2009  1:36 PM
Proxy, Reverse proxy, Reverse proxy detection

Too many Wi-Fi users?
In my neighborhood, I see seven wireless access points with strong signals. That’s only the access points, I have no idea how many users. In such a situation, one would expect collisions and intermittent lost connections. That’s what I see. Any way to confirm that the lost connections are in fact due to crowded airwaves?

Answer Question   |  March 30, 2009  10:03 PM
Wi-Fi, Wi-Fi hotspot, Wireless connectivity, Wireless interference, Wireless networks

Data flow for 1 PC w/ 2 NICs
From a testing perspective, if a PC has 2 NIC’s, each configured for a different subnet, does traffic actually cross the LAN since each unique MAC is represented by a unique IP according to its ARP cache? Would not the destination network need to be resolved by a router? I guess a better question would [...]

Answer Question   |  March 24, 2009  8:20 PM
data flow, IP addressing, MAC address, Multiple NICs, NIC

Ping frame
I’ve got a question: Im using Ethereal to see my network activity and to try it, I ping from one computer to another one. My ping data size is 2000 bytes but I see that the frames containing the ping request and reply have only 562 bytes. Why is that? Ethereal shows this: Frame 13 [...]

Answer Question   |  March 25, 2009  7:29 PM
Ethereal, Ping, ping frame, ping size

How can I create a secondary DNS?
I have created an Active Directory and DNS with the name space jyo.com, now I want to know the steps to create a secondary DNS with the name sharu.jyo.com. Also, I want to know how to make a zone transfer.

Answer Question   |  March 23, 2009  7:18 PM
Active Directory, DNS, Secondary DNS, Zone transfer

Windows 2008 map drives
How to view those connected

Answer Question   |  March 23, 2009  2:12 PM
Mapped drives, Windows Server 2008

FTP – problem with shared folder
i am trying to setup a ftp site in windows that offers content from a share located on linux. i type in the path to the network ressource located on linux but i get a response like this: \192.168.150.50linuxshare this is the response path not valid or not found

Answer Question   |  March 23, 2009  1:07 AM
FTP, Linux, Linux interoperability, Linux shared folders, Network Shared Folder, Shared folders, Windows interoperability

Disadvantages of installing ISA 2004 on DC
hi all what is the disadvantege installing ISA2004 on DC ? and we have a router d-link for small office , we are thinking to install isa2004 , I know that isa must have 2 NIC 1 external 1 internal , the problem I thinkin that currently the public ip address is on the router [...]

Answer Question   |  March 23, 2009  10:26 PM
Domain Controller, Firewalls, ISA 2004, Microsoft Internet Security and Acceleration Server, Network administration, Network security

Will the NETGEAR WGR614 work with the D-Link DSL 320B?
Will the NETGEAR WGR614 v9 54Mbps Broadband Wireless Router work with the d link dsl-320B.

Answer Question   |  March 23, 2009  4:23 PM
D-Link DSL 320B, Netgear WGR614, Routers, Routing table protocols, Wireless routers

Discover Wi-Fi connections in Ubuntu
how can i search for available wireless networks using ubuntu it just asks me about the name of the network ?!!

Answer Question   |  March 23, 2009  3:56 PM
Ubuntu, Wi-Fi, Wi-Fi hotspot, Wireless access

Will the Thomson SpeedTouch 585 work with the D-Link DSL 320B?
will the speedtouch 585 wireless router work with the plusnets dlink dsl-320bB

Answer Question   |  March 23, 2009  3:17 PM
D-Link DSL 320B, Routers, Thomson SpeedTouch 585, Wireless routers

Lotus Domino error: “Domino Web Access Warning: Sorry, we were unable to process your request at this time.”
Hi I am using Firefox, Cisco VPN 4.9 and Lotus Domino 6.5 to access my email at work. I can open and read my email OK, but cannot reply or create new mail. When I do try to reply to create a new memo, I get the following error message, “”Domino Web Access Warning. Sorry, [...]

Answer Question   |  March 23, 2009  9:04 AM
Cisco VPN, Domino Web Access, DWA warning, firefox, iNotes, Lotus Domino error messages

Wi-Fi connectivity problem when traveling
I travel in my business and often use public WiFi’s (hotels, airport etc.). My wifi works fine until one day (different for each location) it stops working. I have good connection and an IP address bu my internet will not connect. Would appreciate if someone had a suggestion for a solution. Thanks.

Answer Question   |  March 30, 2009  7:16 AM
Wi-Fi, Wi-Fi hotspot, Wireless access, Wireless connection, Wireless connectivity

How do I find the IP range?
How do I find the IP range for this: 10.14.6.1/30

Answer Question   |  May 8, 2013  4:53 AM
IP address, IP range, Subnet mask calculation, Subnets, Subnetting

Netlogon share problem
We have 40 AD servers in different sites, we are keeping the folder redirection path, mandatory profile etc in the netlogon folder with a folder name called “gpfolderredirection”, but in two ADs, this folder is automatically gettting renamed such as gpfolderredirection_NTFRS_4c56e802 and gpfolderredirection_NTFRS_1cbb66d9 etc, and being replicated to all other domain controllers, that is why [...]

Answer Question   |  March 24, 2009  2:22 AM
Active Directory, File replication, NETLOGON, NT File Replication Service, NTFRS, NTFRS issue

Cisco 2811 VLAN Usage
I inherited a network that has a Cisco 2811 router setup with the following: interface FastEthernet0/0 no ip address no ip route-cache cef no ip route-cache duplex full speed 100 ! interface FastEthernet0/0.18 description Data VLAN encapsulation dot1Q 18 native ip address 10.221.18.1 255.255.255.0 ip flow ingress ip flow egress no ip route-cache ! interface [...]

Answer Question   |  June 12, 2009  2:10 AM
Cisco 2811 configuration, Cisco router configuration, Cisco Routers, Cisco VLAN, Fast Ethernet, Routers, VLAN, VLAN configuration

Best router to practice on for CCNA
I am currently attending a Cisco Networking Academy instituion with the goal of obtaining my CCNA. I would like to purchase a router to practice on. The 1800 series is quite expensive but i Have seen 800 series routers cheap on ebay. I saw a brand new 802 for $99. Are the 800 series good [...]

Answer Question   |  April 8, 2009  8:40 PM
CCNA, CCNA Network Simulator, CCNA practice, Certifications, Cisco, Cisco 1800, Cisco 800, Cisco certifications, Cisco Certified Network Associate, Cisco Routers, Cisco simulation, Networking certifications, Simulation software

Network logon problem
Created new domin and created users but userr logs on to domin it takes long time

Answer Question   |  March 23, 2009  7:59 AM
logon problem, Network latency, Network performance, Slow login to domain