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Web Servers

A web server is a computer system which specializes is delivering specific content, such as a web page or a set of files, over the internet. Questions about various specific web servers and how to setup and maintain them belong here.

406 Questions

How does VPN provide secure communications?

VPN's are exactly about protecting your Internet connection via high-level security.

Many people generate the error of considering that utilizing a VPN can get rid of their require for an antivirus program. Although a VPN will not function as antivirus software as well as are not able to eliminate infections from your gadget, it can significantly decrease the possibilities that your computer will be impacted by malware or computer viruses. {

{Also|Additionally} Encryption {alone|only} {will not|will never} prevent your gadget from {becoming|getting} infected. Malware and spyware {can be|could be} {placed|positioned} on your computer by {many|numerous} different {websites|sites}, and {the end|the final} result {is that|is} these harmful programs and scripts {can really|can definitely} slow down your {browsing|searching}. {Because they|Simply because they} run in the background, malware programs are {hard|difficult} to detect. {That is why|This is why} you {need to|have to} implement frequent antivirus scanning of your machine to identify and remove harmful programs. This is prong two of your approach.

How do you configure a DNS server on a Linux machine?

for rpm based distributions (fedora, centos etc)

sudo yum install bind for apt based distributions ( debian, all ubuntu flavors, etc) use: sudo apt-get install bind

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What two protocols are most likely being used as the TCP IP model application layer protocol and the internetwork layer protocol?

The TCP/IP suite includes the following protocols Data Link Layer: ARP/RARP Address Resolution Protocol/Reverse Address DCAP Data Link Switching Client Access Protocol Network Layer: DHCP Dynamic Host Configuration Protocol DVMRP Distance Vector Multicast Routing Protocol ICMP/ICMPv6 Internet Control Message Protocol IGMP Internet Group Management Protocol IP Internet Protocol version 4 IPv6 Internet Protocol version 6 MARS Multicast Address Resolution Server PIM Protocol Independent Multicast-Sparse Mode (PIM-SM) RIP2 Routing Information Protocol RIPng for IPv6 Routing Information Protocol for IPv6 RSVP Resource ReSerVation setup Protocol VRRP Virtual Router Redundancy Protocol Transport Layer: ISTP Mobile IP Mobile IP Protocol RUDP Reliable UDP TALI Transport Adapter Layer Interface TCP Transmission Control Protocol UDP User Datagram Protocol Van Jacobson compressed TCP XOT X.25 over TCP Session Layer: BGMP Border Gateway Multicast Protocol Diameter DIS Distributed Interactive Simulation DNS Domain Name Service ISAKMP/IKE Internet Security Association and Key Management Protocol and Internet Key Exchange Protocol iSCSI Small Computer Systems Interface LDAP Lightweight Directory Access Protocol MZAP Multicast-Scope Zone Announcement Protocol NetBIOS/IP NetBIOS/IP for TCP/IP Environment Application Layer: COPS Common Open Policy Service FANP Flow Attribute Notification Protocol Finger User Information Protocol FTP File Transfer Protocol HTTP Hypertext Transfer Protocol IMAP4 Internet Message Access Protocol rev 4 IMPPpre/IMPPmes Instant Messaging and Presence Protocols IPDC IP Device Control IRC

What does ping mean in computer terminology?

The TCP/IP service that lets you check to verify that you can reach another network node from your local host. Ping is usually a quick test to ensure that your connection is valid. The command will return the time in milliseconds that a packet takes to make the round trip from your local host to the remote host.

What is a web server?

Page 256 Lesson 7, sixth paragraph down.

The primary function of the Web Server is to send and receive text-based messages containing requests and replies.

What is the purpose of Web Server Log Analysis?

Web server log analysis tracks things such as how many hits a website has, how long the last visit was, the total number of pages viewed, the website's domain and countries of the host visitors.

Is it possible that an organizations web server and mail server have exactly the same alias for a hostname.What would be the type for the RR that contains the hostname of the mail server?

Yes, it is possible for an organization's web server and mail server to have the same alias for a hostname, as long as they are configured to point to different IP addresses. This is commonly managed using DNS records. The type for the resource record (RR) that contains the hostname of the mail server would typically be an MX (Mail Exchange) record, which specifies the mail server responsible for accepting email messages on behalf of the domain.

Protocol used to communicate between web server and web browser?

"HTTP" is the protocol used by web browsers to communicate with web servers.

Communications standard used to transfer pages on the Web?

http:// = hypertext transfer protocol = which is also the URL

What is a remote server?

Remote server is a very general category. It refers to any computer offering information to other computers. Most of the time, this refers to connecting to a server across the internet and this can be for the purpose of obtaining media, information, or really anything you might want to get from another computer. Large networks will often have a "remote DESKTOP server" as well, allowing login over the local network or across the internet to use the server, network and internet connection as if you were physically sitting in front of it. There are myriad other ways to describe a remote server,but this covers the basics.

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Can you run opensim on a web server?

Yes you can, you can run OpenSim Server on a web server or any PC will do.

You will need MySQL and dotnet.

The easiest way is on a windows OS and use a WAMP Server..or in Linux get LAMP server.

Really this is easy to setup on a windows OS

get the OpenSim server software.

get a viewer as well,like Hippo or Imprudence

get Wamp

start wamp

create OpenSim DB,create user,set permissions,set password.

Now optional you can use SQlite for a test run,and you wont need to do the stuff below,just run opensim/bin/OpenSim.exe .

or MySql for a better Service.

you will need to uncomment your choices in Opensim.ini

Edit Opensim/bin/opensim.ini "Prim Storage" Section.. fill in DB_name...your user_name and your_password....then save

now run Opensim.exe...and answer the questions it asks.

What type of bodywork to do for a client who has exaggerated lordotic curve?

A combination of muscle energy techniques (MET), stretches, and neuromuscular therapy to their hip flexors; iliopsoas, tensor fascia lata, and rectus femoris muscles should be helpful.

In addition, encourage them to do strength training exercises for their core muscles, the abdominals.

Four types of ClientServer Models?

Four types of Client-Server Models

  1. Client-server for tiny shops and nomadic tribes
  2. Client-server for small shops and departments
  3. Client-server for intergalactic enterprises
  4. Client-server for post-scarcity world

What are the IP addresses of your DNS hosts?

The answer is different for each network or provider. My ISP is Comcast in Portland, Oregon. My DNS hosts are different than my neighbor on Verizon, so there is no way for us to answer your question.

If you need your specific information you can obtain it through your ISP. If you just need DNS, Google has free public DNS at 8.8.8.8 and 8.8.4.4

More information is here: http://code.google.com/speed/public-dns/

What are the disadvantages of client side processing?

The code is exposed to the client. This can reveal implementation details that should be kept private, including intellectual property.

Does Microsoft use a Linux server for their website?

For some things, yes.

While most of their back-end servers are running Windows, NetCraft shows some servers (such as download.microsoft.com) as running Linux. This is most likely due to their use of Akamai for content delivery, which has caching Linux servers in front of all sites.

Microsoft also has a farm of 10,000+ Linux servers that host the Skype infrastructure.

Why does TCP server program have two sockets?

1)Socket 2)Server Socket Server socket is used for normal two-way socket communication. Socket class allows us to read and write through the sockets. getInputStream() and getOutputStream() are the two methods available in socket class.