The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (often called TCP/IP, although not all protocols use TCP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, ...
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votes
0answers
22 views
How do VPN services manage/afford bandwidth? [closed]
There are a bunch of VPN providers where a user can subscribe for a relatively low cost and get unlimited data transfer (Hide My Ass costs about $12 for their Pro account, for instance). I understand ...
0
votes
0answers
9 views
How to purge proxy.pac cache on Internet Explorer and how to control how long it can be cached
We recently modified proxy.pac & wpad.dat file on our servers.
How do we force IE to fetch the new .pac or .dat files?
Going ahead, is there any way to specify Expiry or cache control headers?
0
votes
0answers
28 views
Certain sites and services not working whilst connected to VPN [closed]
I'm connected to my works (Cisco) VPN.
It's mostly working, but i've noticed a number of things don't work whils connected to the VPN.
eg.
evernote does not sync
gtalk does not work (cant sign in)
...
-1
votes
0answers
14 views
Not able to connect to the Wifi [migrated]
I want to use my wifi router to work with the my broadband connection. Being a novice at al the configuration settings I am unable to use the internet right now.
Here are the details of my current ...
0
votes
1answer
36 views
Best practices on lowering latency between two endpoints [duplicate]
I would like to know what tools or what kind of calculation should be made in order to find the lower latency possible between two points physically distant.
For example:
Ping time from Europe to ...
0
votes
3answers
102 views
Using Network Interface With Multiple IP Addresses
If I have a network interface with multiple IP addresses bound to it can I set which IP address on the interface my server uses? It sees to be set to use the first IP address I added to it.
Info: ...
0
votes
1answer
31 views
Internet Speed Requirement Calculation
I'm asked to provide information and a estimation for a planned congress that will take place in a big venue. There will be about 300-500 guests. Half of them are likely to connect to the internet. ...
0
votes
1answer
57 views
Windows 2008 R2 unable to connect to the internet
I have been given a Virtual Server which is unable to connect to the internet, I have the correct information provided by the management of the VPS Provider,
The Default gateway is on a different ...
0
votes
2answers
70 views
is it possible to findout who creates a hotspot in a LAN?
In my LAN there are some Mac users who share their LAN connection by creating a hotspot via their Airport. I can see the newly created WiFi networks on any WiFi capable device. How can I find out who ...
1
vote
3answers
84 views
Using a GNU/Linux VM through SSH on the internet, is it safe? [closed]
Is it safe using SSH to connect to a Linux VM? (Hosted by http://linuxzoo.net/)
By using PuTTY to SSH in, am I exposing my machine to the internet/host by doing this? What security concerns should I ...
-1
votes
1answer
47 views
windows server 2008 cannot connect to internet [closed]
I am working in project to create local area network for school
I created domain school.com and connected the clients with it and assign IP
the problem is windows server 2008 cannot connect to ...
0
votes
0answers
32 views
Error with DCHP and wireless router
So I have a user who is connect to are network that keeps getting booted off the internet and are server. In event viewer I see these to messages every time it happens. ...
0
votes
0answers
28 views
VPN connection remains connected but drops conectivity on specific provider
I have two diferent network providers (for evaluation purposes), one is called NET (optical fibre) and the other is GVT (ADSL). I switch physically between them by plugging in my PC network cable in ...
9
votes
3answers
251 views
Irregular internet disruption: certain images and JS not loading
first time on ServerFault, and I've got a nice little conundrum.
Since a few months now, we've been having issues with our internet connectivity.
Environment:
Servers: 2 Terminal Servers as an ...
-5
votes
1answer
59 views
How to create an encrypted connection between my computer and a public proxy server? [closed]
I read recently that public proxy servers can be used for free to make it appear like you are accessing sites from a different location than you really are (allowing you to use Pandora etc. ...
0
votes
2answers
900 views
Can't ping or reach external IP or domain on CentOS 6.3?
I have installed fresh CentOS 6.3 on my machine.
Internet is not working at all.
How ever I can ping my router and other computers connected on LAN.
I've googled and searched various forums but all in ...
2
votes
3answers
124 views
Gigabit switches
We currently in our office have a 20 Mbps fiber optic internet connection with Time Warner. We decided to upgrade our connection to 100Mbps. When the technicians came out, they upgraded the circuit ...
1
vote
5answers
171 views
Microwave Internet vs optical fiber [closed]
Our ISP if offering us Internet via a direct optical Fiber link or a licensed frequency microwave link.
assuming there is not obstacle and same distance,
which link is more reliable (up-time %) and ...
0
votes
1answer
174 views
MikroTik RouterOS 5.18 Does not connect to internet after restart
I am setting up a RouterOS on an x86 machine. The router is configure and is connected to internet via PPPoE internet connection.
I am distributing it to 5 PCs and a Router via RouterOS PC.
The setup ...
0
votes
0answers
74 views
Dynamic Reverse Proxy - Nginx?
I was wanting to know if what I'm about to explain is possible and if so, what is the best way to do so.
What I'm wanting to do is make a subdomain like vm-192-168-0-32.mydomain.com and have it go to ...
0
votes
1answer
120 views
Cisco Router ( 2611XM ) and ISP Internet connection
I recently acquired a Cisco 2611XM that looks like this:
Now the one I have has only 1 FastEthernet port (Was expecting 2) but I was wondering I purchase a WIC1T - CSU/DSU module for it could I ...
0
votes
3answers
92 views
Creating my own dial-up internet service
Our company has invested immensely on "machine-to-machine" modems, equipped in embedded machinery over the last decade.
These work with old-school internet dial-up service.
These machines need to ...
5
votes
2answers
185 views
Modelling University student Internet usage
I am working on a project for a university housing client where I need to model the usage patterns of students living on campus. There are obviously many variables at play here, I am keen to ...
0
votes
1answer
55 views
Multiple broadband providers for internal web servers
Maybe I am using the wrong search terms, but I am having problems finding the answer to my question. We have internal servers hosting our web site. We would like to bring in an alternate provider so ...
-1
votes
1answer
114 views
How to distribute the leased-line internet connection between 15 systems? [closed]
We have a 2 MBPS dedicated leased line with 8 static Ip's, and we want to use it on 15 systems with one server. Service Provider offered the 1:1 Speed with 98.5% uptime.
I would like to know the ...
-1
votes
2answers
84 views
What happens when an unexpected packet arrives at a computer? [closed]
I have been wondering this for a few days. I basically understand how networks and packets work. But what happens when an unexpected packet arrives? Like, when I didn't send a request for a website's ...
0
votes
1answer
237 views
Clients connected to Cisco router can't access to internet
I'm currently undergoing CCNa academy so I got a "job" from my boss to configure Cisco 871 router. Unfortunately we just finished first semester at academy so there are some things that I'm still ...
1
vote
0answers
61 views
Internet connection not working on both routers but works with modem
I have a problem which is driving me crazy as it does not make any logical sense.
For some reason yesterday, the internet connection went down. Everything pointed to a defected router and therefore I ...
0
votes
1answer
30 views
External Client should use our proxy to get filtered by our firewall
I would like an external client (4.3.2.1) to use our proxy (9.9.9.9) which forwards traffic to our firewall (8.8.8.8) which then forwards the traffic back to our client (4.3.2.1).
So I'm curious if:
...
1
vote
2answers
200 views
Node.js WebServer on Ubuntu 12.04 not visible externally from the Internet (external IP)
Router: IP: 192.168.1.1
Host OS: Windows 7(64 bit) - IP: 192.168.1.2
Guest OS(VMware): Ubuntu 12.04 LTS(64 bit) - IP: 192.168.1.10
Guest OS has a NAT and a bridged connection via VMWare.
I'm running ...
1
vote
1answer
43 views
Server is pingable on some ips but not on others
We have comcast business class internet with 5 static IPs. 4 out of 5 of them are assigned to a server that sits right behind the smc. The smc has DHCP disabled so it should be in pass through mode.
...
0
votes
0answers
30 views
How to setup internet explorer to change sites alert sites automatically [closed]
not sure if this is the correct area, I have setup a nagios skin called nconf and its working well, we have a 42in screen displaying any outages but I would like to put more there, like for our ...
0
votes
1answer
113 views
Domain rebuild from scratch
I have to rebuild the entire domain of a company I just started with. It currently runs SBS2003 but it is "FUBAR". MMC is not working, I cant use the BPA on it. I cant get adprep to work to do the ...
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votes
1answer
148 views
Make local server accessible from internet in a local network within a sub-domain?
I recently tried to open a mail server for our company. For some reasons it was better to make mail server separate from other server(s) in data center, so we plugged another server to our local ...
-3
votes
1answer
134 views
Have access to internet but ping 4.2.2.4 results in 100% packet loss [closed]
I am running openSUSE 12.2 on my machine. When I try ping 4.2.2.4 in my konsole I get 100% packet loss, but I have access to internet. How can I fix this?
I always thought if ping 4.2.2.4 doesn't ...
0
votes
0answers
117 views
Automatically detect proxy settings ignores group policy
We came into work this morning, had were constantly getting calls about people not being able to access the internet from our 2003 terminal serv.
As it turned out, they could, but only after a few ...
0
votes
1answer
72 views
Hosting WCF over Internet [closed]
I am pretty new to exposing the WCF services hosted on IIS over internet. I will be deploying a WCF service over IIS(6 or 7) and would like to expose this service over the internet. This will be ...
0
votes
1answer
77 views
Access device with local ip over internet
I apologize up front if this is the wrong place to post this question. It seemed like the best fit.
I have a device which is connected to my local network which has an IP of 192.168.1.10 from my ...
0
votes
0answers
62 views
block access to internet via browser but allow it from a specific android application in wifi network
I need to block the access of users connected to a wifi network to the internet via browser but still be able to allow traffic from an android application.
I am building a system where users can ...
0
votes
0answers
79 views
Conigure Linux server to do lawful interception
I have a server that makes the routing for my LAN (Linux, CentOS). I would like to have on it the possibility of lawful interception: I want to be able to see all network traffic that was done from my ...
-2
votes
1answer
55 views
how can I verify whether multiple ip addresses are hosting on same server? [closed]
Many hosting providers put multiple ip addresses on same physical machine. If I have two ip address, for example: 192.168.1.100 and 192.168.1.101. If I can only send probing packets from afar, how can ...
0
votes
2answers
98 views
What is the purpose of the “Network IP address”, why can it not normally be used? [duplicate]
Possible Duplicate:
Is X.Y.Z.0 a valid IP address?
Maybe a noob question but when referring to IP subnets, what is the purpose of a network IP.
i.e. with a network like 192.168.1.0/24, you ...
2
votes
1answer
91 views
SPF from neutral to positive
I need to be able to configure SPF rule for my domain. Problem is that I can normally receive all the emails. But when I send to some recipients they receive it as spam.
In the mail failure delivery ...
-1
votes
1answer
49 views
APACHE httpd.conf error
I have recently installed the latest Apache.
It is working fine through localhost:80 and through 10.0.0.51:80, but I can't connect through [External IP]:80.
I have forwarded ports correctly, but I ...
0
votes
1answer
45 views
2 connections from same ISP however only 1 can open the site?
I am having a very weird problem, this is the situation:
Company A have Internet from provider A
Company B have Internet from provider A
Company A cannot open site Y or ping
Company B can open ...
1
vote
0answers
296 views
Share 3G connection over WiFi-LAN network [closed]
This is how I have established network between my PC and my laptop at home (being novice in networking, it took me few days to achieve the feat). And it is working perfectly. I can easily share files ...
1
vote
2answers
54 views
OID (directory service) Installation and configuration on Windows 2003 R2
I need your help in installing and configuring Oracle Internet Directory service on Windows 2003 R2 server machine, I was wondering if anyone can provide any useful tutorial links on the same. I did ...
0
votes
1answer
61 views
Diagnosing WAN performance & peering issues without a second ISP uplink as a comparison?
Background:
I am able to access Twitter & Serverfault from work (using Level3) with no problems. However when I use RCN I get crummy service and am not able to load the page. Page reloads ...
-3
votes
2answers
53 views
You are given a Computer, which is “somehow connected to the web”. How do you find out how? [closed]
The way to accomplish this obviously depends on the operating system.
Windows 7
Mac OS X Mountain Lion
Ubuntu 12.4
Choose one of the above (preferably all 3), and explain how:
You would find out ...
-1
votes
2answers
70 views
I can't connect to internet via lan cable because 2032 battery died and my bios bios info is now empty [closed]
I have a compaq CQ61-112SL from about 5 years now... the main battery is almost dead, doesn't keep more then 10 minutes. anyway my problem is that my motherboard battery didn't have any more energy ...
