0
Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
It is probable that the network that you are connectiong to does not use a DHCP server, meaning that each computer sets its own IP and DNS servers, rather than being assigned one by a DHCP server. Most routers serve as the DHCP servers for their network(especially in home networks). If you know the DNS servers that you use elsewhere, manually assign them in the iPod, and try to find the router's ip and use the first three sections of it and then add your own number(greater than zero but less than 255, 1-10 are your best bets though) as the last section.
How would a mail server on the internet locate the mail server?
Whenever mail servers talk to each other, they look for MX records at the destination's DNS. When a DNS server is setup for a domain and that domain has mail capabilities, their DNS server will have at least one MX record to denote which server handles mail. The root DNS servers for the internet denote the addresses for the SOA (start of authority) DNS servers for a particular domain.
Which type of network sends data only to the device specified as the destination?
Though this question is pretty ambiguous, you probably mean NBMA networks (Non-Broadcast Multiple Access).
Metro ethernet is used to connect subscribers to what larger service network?
Metro Ethernet, also known as a metropolitan-area Ethernet, is used to connect subscribers to a larger service network, or the Internet. Businesses can also use Metro Ethernets to connect their offices to each other.
Why is http at the start of web addresses?
The letters "H T T P" are at the start of web addresses because if informs the server what type of protocol is being requested. The "Hypertext Transfer Protocol" is the basis for data communication on the internet. If you see H T T P S at the beginning, such as Google.com, it means that any information sent over your network to their network is secure. If there is non ( HTTP) it means the traffic can be intercepted which means any information sent over the network isn't encrypted and is plain text making it easy for a hacker to intercept and steal information.
Trivial File Transfer Protocol: this is a simplified version of FTP without authentication and many other basic features. Often used for booting devices over a network
Open SSL is a Linux based application made to create SSL certificates on your server. Once you have create an SSL, you may either use it as a Self-Signed SSL meaning that the SSL has been assigned by your server or you may purchase an SSL certificate from a known and trusted SSL provider such as verisign to avoid Alert messages such as SSL is not trusted from your browser.
Who is president of gateway computers?
Not with the exact title 'President' the answer is Ed Coleman. Here is a breakdown of the Gateway exec's:
Ed Coleman, Chief Executive Officer
Jack Baikie, Vice President, Supply Chain
Bart Brown, Senior Vice President, Marketing
Greg Call, Vice President, General Counsel
Bob Davidson, Senior Vice President, Worldwide Retail
Gary Elsasser, Senior Vice President, Products
John Goldsberry, Senior Vice President, Chief Financial Officer
Chuck May, Senior Vice President, Product Planning-Retail
Kyle Price, Vice President, Quality
Lazane Smith, Senior Vice President, Human Resources and Customer Support Services
Neal West, Senior Vice President, Corporate Controller
What is the difference between a physical address a network address and a domain name?
The physical address is the unique hardware address that identifies an interface of a machine on a physical network such as a LAN. Physical addresses are used in the data link layer.
A network address is a machine's logical address on a network. The network address is used in the network layer. The network address used on the Internet is the IP address.
Domain names are used as an aid to identify hosts and networks in the Internet, since names are easier to remember than numbers. The DNS system is used to translate between domain names and IP addresses. The domain name for the network address 128.100.132.30 is toronto.edu.
Why is the maximum speed of a modem limited to 56kbps?
It really depends on your line quality. The bandwidth of a typical copper line maxes out 56kbps. But it's never guaranteed to reach that speed due to line quality, noise and etc. The modems are all able to connect to each other by following established standards. The standard set for dial-up modems has a maximum data transfer rate of 56 Kilobits per second. The government limits the power level of the signal, so it actually is less than 56K. Your line quality (distance from the Central Office (CO), line loading coils, environtmental factors, branches off of the main line, etc., all affect the bandwidth that can be transmitted across the lines. The modems will negotiate the fastest speed that they can, depending upon their settings, line quality, and supported protocol (K56Flex, V.90, V.92, etc.) DSL modems use frequencies above the normal bandwidth of dial-up analog modems. DSL modems are capable of speeds up to a few Gigabits per second. Because of the higher bandwidth of DSL, line loading coils and other factors may prevent its use. Many telephone companies have been extending their optical fiber networks out to the neighborhoods, reducing the distance between your home and their equipment. This has made DSL possible in many more areas where it was not possible before. Because of the higher frequencies used by DSL equipment, filters are required for regular analog phone equipment. The filters are put between your telephone, answering machine, or modem and the telephone line. The DSL modem connects directly, without a filter.
What are web proxy and ftp servers?
Web proxys allow you to surf the internet without someone being able to trace what sites you've visited. They can also be used to hide from parental blocks.
Web proxy:-
A web proxy is becoming more and more important in today's internet. Schools and Companys tend to block sites pretty quickly nowadays.It is especially irritating when the ban is directed towards just a few websites and not every website in that category. A Web Proxy might be able to sneak past this policies and display the site in your browser even though it is banned in the network.
FTP server:-
An FTP server is a software.html application running the File Transfer Protocol (FTP), which is the protocol for exchanging files over the Internet.
How do I allow the outside world to see my website hosted on my xampp apache server on my computer?
Although there isn't quite enough information in the question to be certain what you're looking for:
The general answer is that you need to configure Port Address Translation on your Router/Firewall.
Your router's WAN IP address is a valid Internet address, however your computer is most likely using a privately scoped IP address (either 192.168.x.x or 10.x.x.x) that is not a valid Internet address.
You need to configure your Router or Firewall in such a way that when it receives traffic on its WAN IP address on port 80, it will forward that traffic to your internal server at the 192.168.x.x or 10.x.x.x. adddress. Most common home routers support this, with a minimum of configuration.
Does Arris Docsis 2.0 support wireless internet?
I forgot the key arrests doscis 2.0 router to change the password of wi fi as I can retrieve the login password ? help me please
How do you enter ntp server information on a router?
If your router supports NTP-server configuration, the spesifics should be described in the manual. Often the manual can be found on the internet by searching for Manufacturer Model User Guide. Most routers have web-based configuration: You simply connect your PC to it and enter http://192.168.1.1 (or your routers IP-address*) in your browser, and you will get a login-page. Enter the admin user name and password** for your router. Now you are logged in as administrator of your router. Find the link for the time settings-page and see what is available there. Some routers like Apple AirPorts etc don't use web-interface. There you use the Airport Admin utility *What IP-number to use? Find the IP-number for the router your computer is connected to in it's internet settings. 198.162.1.1 and 10.0.0.1 are common. Try your computer's IP-number except with a 1 as last digit. **No password? Don't log in or reset anything if it is not your router! Try admin / admin or admin and empty password if you don't remember the password (or read the manual about first login. Or about factory reset to erase all settings including password.
Do you need a static ip address for port forwarding to work?
Short answer... yes.
There is a different method - however i will have to update this at another time. sorry.
But if you were just looking for a yes or no answer, then the answer is yes.
"that is, the most logical and efficient way for port forwarding"
Difference between osi layer and isdn layer?
ISDN make a separation between user data and voice,in ISDN there are two type of channels, D Channels and B channel, there ability is different, in bandwidth and they have different type of combination, D channel has 16 Kbps bit and it used for controlling, but B channel have 64 Kbps its used for actual transfer of user data many variation of combination between D and B channels but the basic equation where (2B+d) which means too data channel plus one control and that known as BRI (basic Rate Interface) its normally user for home uses, another combination is PRI (Primary Rate Interface) which use more than two B channel plus single D channel this type used for business solution, There are different combination to these channels in most of countries like in Europe they make combination on B+D equivalent to E1(2048)Mbps, in US Equivalent to T1 (1.544 )Mbps, but in OSI this is the responsibility of transport layer to recognize the physical capacity and isolate that from upper layers by making framing to big amount of data to smaller one and put controls to let image transport layer in destination notice that, OSI have seven layer, and all those layer are active instead ISDN is reach only third Layer (network layer), OSI is connection less protocol and it depends in HDLC which is packet protocol technique, instead ISDN built up X.25 which is connection oriented in sense of VC (virtual circuit), ISDN basically make a distinction between user data and voice cause is based on subscriber or telephony system, but OSI make mixture of data stream by using transport layer and it manage to hide the l, in than layer there is a multiplexing process for session layer to make all those distinct process (user application) transfer in one virtual connection and to be controlled via transport layer. ISDN (RM) have thee palnes user managment and control palnes but OSI (RM) have only one planes user palne in ISDN equivelant to signaling use plane in OSI , manament and those are the basic deference's
RM= Reference Model.
Major classes of assignable IP addresses?
there are 5 classes of IP address, the classes differ on the size of netid and hostid
We can identify the class by its first value
ex- 100.67.88.55 belongs to class A
class A : 0-127
class B: 128-191
class C: 192-223
class D: 224-239
class E: 240-255
Term meaning situated in front is what?
The anatomical term meaning "situated toward the front" is: anterior.
What is the designation for a digital telephone circuit that transmits voice or data at 1.544Mbps?
T-1
The IPv6 address that is required for other computers on a local network to communicate with each other is, the "Link-local address". The first hextet will always begin with FE80.
A free software package, Samba enables network access to Linux and UNIX® file and print services. Samba's core functionality derives from its implementation of the Server Message Block (SMB) protocol. SMB client- and server-side support comes bundled with Windows 95 and newer versions of Microsoft Windows. This large installed base has helped Samba grow in popularity...
From the perspective that samba is everywhere, then yes it is good. If you are asking if it is a good protocol, then the answer is that it isn't really all that great. It has large problems on links with high latency. It has far too many redundant commands.
What is MIC in WLAN.This is a part from WLAN 802.11i 4-way handshake blocking?
MIC refers to Message Intregity Code. Used for handshaking while connecting to AP. So, its used in association/authentication.
What test can be performed to check attenuation in fiber optic cables?
Easiest way is looking at the Rx signal information of the device receiving the optical signal. For instance, switches and routers are equipped with removable optical transceivers (SFP) which often have digital diagnostic monitoring ( DDM) capabilities. Available information includes Rx power, temperarure and bias current among others. The other way to easily measure attenuation is by using an optical power meter. In both cases the optical budget of the optical link (in dB), or at least the remote end's Tx power (in dBm) must be known beforehand.
Yes you can but it would be more cost effective to use 1 router (downstairs) and a network switch upstairs as each router will typically support up to 255 connected devices.
