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Questions tagged [networking]

Networking refers to the technologies and techniques that enable the interconnection of devices and applications allowing them to communicate electronically.

Networking refers to the technologies and techniques that enable the interconnection of devices and applications allowing them to communicate electronically.

Originally referring to local-area networks (LANs) designed to allow communication between computers in the same office or university, networking now covers a broad swathe of topics. To name but a handful:

  • small-office/home-office
  • campus/metro area networks (MANs)
  • datacenters
  • wide-area networks (WANs)
  • optical networks
  • telephone networks
  • Voice over IP
  • wireless LAN
  • cellular telephony
15498 questions
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Cisco VPN Client on Vista - Virtual Adapter

I have used the Cisco VPN client for years, and on XP it is pretty much rock solid, on Vista, not so much. You might be able to connect, but unless you set up a constant ping to something, it usually will disconnect, with this error: Reason 442:…
ScaleOvenStove
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Networking security and TCP/IP internals books/sites

I am searching for good books and articles about TCP/IP, mainly the security aspects of TCP/IP protocols. I have TCP/IP Illustrated and the TCP Guide, but they kinda lack on description of 'classic' attacks and how the internals of protocols relate…
coredump
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Two ESXi host servers connected to eachother's second NIC

Essentially I have two physical servers (Both identical, both ESXi hosts, each with 2xdual gbit nics) in a private rack in a data center. They will both be running a variety of db/web/storage server guests and each has a large redundant storage…
tg2
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Can I use IPv6 today?

My VPS (Virtual Private Server) provider offers unique IPv6 addresses much cheaper than IPv4, but what can I use it for? The VPS runs Debian 5. I currently use the VPS for web hosting and running IRC clients and bots. I run Linux on all of my…
Jacob R
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Using a router to intercept HTTP data. Sniffing?

This is my first serverfault post. I've been a member of Stack Overflow for a while and doubt that this question would fly over there. I have my PS3 and XBOX 360 hard wired to a Linksys Wireless N router. I'd like to find a way to determine the…
Daddy
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Why is iptables not dropping packets?

I have the following rule in our iptables config file /etc/sysconfig/iptables -A INPUT -s 84.23.99.97 -j DROP And when I do iptables --list I get the following Chain INPUT (policy ACCEPT) target prot opt source destination DROP …
erotsppa
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Round robin through multiple interfaces

I'd like to alternative between networking interfaces to a particular ip. For example: Request to 192.168.1.5 // uses interface 1 Request to 192.168.1.5 // uses interface 2 Request to 192.168.1.5 // uses interface 1 Request to 192.168.1.5 // uses…
Keith Pitt
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File encryption solution for network share

We have recently received a few client contracts where all client files must be encrypted at all times. The challenge we are having is sharing encrypted files and simultaneous access on network shares. There are thousands of files which need to…
Brettski
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Forward port to another Ip/port

I recently found out that my ISP disables port 135. I have a server and personal computer behind my router. A friend and I are working on a programming project and are running into some sql issues because of this blocked port. For him to be able…
Ryan
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How do I setup virtual networking Xenserver?

I'd have a network like this currently. Basically, It's two Xenservers connected to our colocation provider's switch via one ethernet cable per server. Each server currently has a second ethernet card which storage is attached to (iSCSI). Each of…
edude05
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windows: force user to use specific network adapter

I'm looking for a configuration/hack to force a particular application or all traffic from a particular user to use a specific NIC. I have an legacy client/server app that has a "security feature" that limits connections based on IP address. I'm…
Chad
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Unknown local router stealing DHCP requests

I am in charge of a local network in a dormitory, we have two 50-way switches and using them to connect to some remote router which is not administered by me (it is not in my building). Note: this is a legacy setup, I had no decision on how it is…
noname
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How bandwidth is allocated to concurrent users?

Let's say a server is connected to internet through limited bandwidth, and more than 1 user try to download a file from that server simultaneously. If we ignore the bandwidth limitation at the user side, may I know how the server side bandwidth will…
kwc1
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Is this a reasonable architecture for a newspaper site?

We run a newspaper-style site and are consolidating our architecture from one that grew amorphously into a more scalable, resiliant solution. I was thinking of the following: internet | h/w firewall | h/w load balancer | | |…
timmy
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Load balancing based on session cookie?

I have a web app that is going to run on multiple servers. I'd like to make sure, that requests using the same session (HTTP cookie header with value JSESSIONID=x) always communicate with the same server. That is, until the session "moves" to a…
Chris Lercher
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