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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1answer
4k views

Does adding ?.jpg after url really bypasses wifi security? And how? [closed]

So I stumbled upon the following lifehack the other day: I currently don't have access to an airport with expensive WiFi but it seems that adding ?.jpg to any url doesn't cause any problems with ...
2
votes
1answer
81 views

Prevent creation of default shortcuts and Favorites in Windows XP SP3?

(1) Whenever a new user is created on a Windows XP SP3 system running Internet Explorer 8, their Favorites folder is automatically populated with a "Microsoft websites" folder and several links in the ...
1
vote
0answers
61 views

Exchange have disconnection Issue while using behind TMG 2010

We have two branch office but not VPN (Data Circuit) between them. We are using Exchange facility from another branch but we are having disconnection / slow issue as already set TMG alerts. Outlook ...
1
vote
1answer
9k views

OpenVPN connected but not internet access on the client

I've setup OpenVPN following this tutorial, and everything works fine except that I don't have an internet connection on the client while connected to VPN. ...
-3
votes
3answers
1k views

How to check if internet IP address is currently taken? [closed]

Usually I check with ping {ip.address} and that kind of confirms someone has the ip, but when when I ping my Amazon server the message is Request timed out. However I know it's there and I can ...
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votes
1answer
2k views

Ubuntu Server 14.04 Trusty Tahr installer requires Internet access to install [closed]

A picture shall do some of the talking: http://i.stack.imgur.com/LFEIH.jpg This is related to my earlier question at StackOverflow, ...
7
votes
1answer
956 views

Debugging slow transfer rate from server

I'm trying to explain this as simple but documented as possible. This is not exclusive to this server or my current ISP. I've seen the same exact issue over the years while being with different ISPs ...
0
votes
2answers
157 views

Setting up a LAN with load balanced internet

I have been looking and researching for the last week on this but haven't found anything conclusive which might apply to the situation that we are trying to solve. I have a small start-up which now ...
0
votes
0answers
853 views

Squid proxy log shows warings

I am seeing these errors in my squid logs and I wonder if it is that my configuration is incorrect. Apr 14 06:11:53 proxy squid[3901]: WARNING: Unsupported or unconfigured/inactive proxy-auth scheme, ...
2
votes
1answer
58 views

Web server with access to internet and internet Active Directory [closed]

This might sound like a stupid and unsecure question, but we're front-end web delopers and don't know that much about these things. So here goes.. We're creating a web app where we want to log in ...
1
vote
1answer
75 views

Deploying Ruby Applications In Air Gap (No Internet Access) Network

The current network setup at my job has made it difficult to deploy Ruby web applications. We are running our production RHEL servers in an air gap network with no access to the public internet. My ...
-1
votes
1answer
366 views

Turn off Internet Access; Leave Intranet On

I have a machine running Windows XP SP3 on a domain run by a server running Windows Server 2003 for our DNS. We also have a sonic wall firewall. We use the XP machine to receive faxes and scan ...
0
votes
1answer
648 views

Node.js forwarding from local network to public Internet

I have a Server running node.js in my network that is not reachable via the internet (i.e., no static IP / domain). However, I have a vServer with a domain that is running node.js as well. Can I ...
0
votes
0answers
357 views

Connecting internet uplink to switch or firewall

While I am using Cisco kit, this isn't really Cisco related, more general network design. In the past I have connected internet connections straight in to a layer 3 core switch, 3750X's, 6509's and ...
-1
votes
1answer
497 views

How to dedicate partial (1Mbps) out of total (2Mbps) Leased Line internet at low cost? [closed]

At this SME office location, there are two teams that want to share a 2 Mbps Leased line. Team-1 is ok with normal variable speeds, but Team2 needs to connect to remote virtualized secure servers ...
-1
votes
1answer
40 views

Router connect same 2 ports? [closed]

What it will happen if 'accidentally' i will connect 2 ports with the same utp cable? I'm asking here since i don't find anyware such a stupid and silly question but i'm curios about it, the router ...
2
votes
3answers
134 views

Progressive video download in a classroom environment - how to determine bandwidth needed

Background: We need to deliver a video heavy e-learning course to a classroom of ~15 users. This video will be MP4 delivered via HTML5 video so progressive download. As from what I can gather you ...
0
votes
0answers
145 views

Debian on VM has web access but can't be pinged

I have just installed Debian on a Virtual Machine. I have internet access on the VM and installed SSH. I then did a ifconfig and discovered that the IP address is 10.0.2.15 which is strange as the ...
1
vote
3answers
408 views

centos unable to access the internet

Problem Cannot access the internet. CentOS guest isn't receiving incoming traffic. Private network is fully accessible. Scratching my head here... I don't have this problem on ...
1
vote
2answers
271 views

Can I capture ISP SNMP information with Wireshark?

I am trying to do some heavy digging into SNMP, BPI+, ISP networks. Since wireshark can be used to capture network data, would I be able to use it to remotely capture my ISP SNMP agent information and ...
0
votes
1answer
341 views

Where do local ISPs' core networks connect to? [closed]

Where do local ISPs' core networks connect to? Do they connect to the Internet Backbone owned by AT&T and Sprint (among others) or do they connect to an IXP (Internet eXchange Point)?
1
vote
1answer
98 views

How did we manage to block connections to our VPS?

For the last week we've been struggling to get connected from inside our network to a VPS where we host some files for users of our product. It's up for everyone else, down for us and not blocked by ...
2
votes
1answer
1k views

Networking ARP table in windows cmd

I am reading the book practical packet analysis and I have just learned the fundamentals of the ARP protocol. They also added something about the arp -a cmd command. I'm curious about some of the ...
3
votes
3answers
748 views

Network Latency and Timing as shown by Chrome

I'm trying to understand why a static image being served by IIS is taking ~ 182 ms to load. Using chrome I captured the following timing information. When I request the same image by opening ...
1
vote
1answer
88 views

Microwave Link Latency

An internet provider installed us a microwave link: The issue is that: The ping from our side to the gateway is about 1-2 ms, which is great, but it remains like this for only 12 hours, then it ...
1
vote
1answer
881 views

PPTP VPN - No internet access though the VPN

I am very new to the world of windows server I'm renting a VM in the USA for my web hosting(DC, DNS and Web host role) and I decided that I would install a VPN on it so I could re-route me ...
0
votes
2answers
363 views

client's not receveing internet with dhcp. does if i use static

i reloaded my ad, dhcp, dns server 3 day's ago. server 2008 enterprise. and we are having a problem. only the server issue's the ip. all files share's, ad, etc works. can ping and remote desktop ...
0
votes
1answer
44 views

What are the recommended internet security measures to take? [closed]

I have built a speical-purpose server, the only purpose of this server is to download some data from a remote(internet) data feeder and do some data processing in the server as well. The only ...
3
votes
1answer
2k views

Automatic Proxy Configuration Script - Lab Setup Process

I have a requirement to set a test machine which utilises automatic proxy configuration using a WPAD.DAT file. This is to replicate a customer environment (that we can't use for testing) so we may ...
3
votes
2answers
192 views

New IP addressing from ISP

We just got a new Internet fiber service. Our ISP gave us a /30 for WAN and /29 for LAN? I have never seen this when setting up a new ISP service. I was always given a block of ip addresses (if ...
2
votes
0answers
158 views

I am not able to connect to my server from my leased line internet connection

I am having some troubles connecting to my Fedora server from my static IP ISP connection. Usually I can ping that server with no problems. But other times it just gives me timeout responses. When ...
3
votes
1answer
950 views

“Automatically Detect Setting” vs “Use Automatic Config Script”

I would like to know, in Internet Explorer, the difference between "Automatically Detect Setting" and "Use Automatic Config Script". I think I know that "Automatically Detect Setting" makes the ...
2
votes
1answer
123 views

Protect a public-facing PostgreSQL server against abuse

I have a Postgres database containing public information that I'd like to expose to the internet, for anyone to use. What steps can I take to prevent: Excessively expensive queries that could hog ...
-5
votes
1answer
365 views

Solution for Proxy tools like Hotspotshield etc [closed]

My state has a strict policy about porn. We blocked thousands of IPs (of Porn Sites) so that from within the state they can not be accessed. Which was working fine for like less than a month and then ...
0
votes
0answers
496 views

CentOS - Increasing Users Download & Upload Speeds

I have has some clients report that their download speed from my web and ftp servers max out at 4.5Mbps for them, to me thats awesome, but now i am wondering why it stop at 4.5. The services are ...
-1
votes
1answer
52 views

how to create a simple radio station [closed]

I've been digging around for ages but not getting very far so any links or tips would be massively appreciated. I want to create a central "radio station" in my home to stream one playlist to any ...
1
vote
0answers
46 views

Cisco configuration for public library internet

I'm a C/C++ computer programmer turned IT support guy working for a public library. My day is usually spent helping random grandparents learn how to use email, so my networking knowledge is limited ...
0
votes
1answer
389 views

HP MSR 30-10a Router - Route Traffic over Default Route

We have a brand new HP MSR 30-10a Router. We have a fairly simple routing situation - we have two IP blocks, one which has a route out. We need things on the first block to go through the router, and ...
0
votes
1answer
614 views

Unable to access my website even after flushing DNS

I am having weird issues with my website, everyone except me is able to reach my website but whenever I try to login to my website I am getting a Server Not Found issue. The website has never had this ...
-2
votes
2answers
122 views

Collecting Web traffic and monitoring reports [closed]

My company is a med home health company and I have been tasked with seeing what people are doing on the internet. There's been a lot of people complaining of people shopping, surfing internet, etc on ...
5
votes
1answer
700 views

Designing segmented LAN with fairly shared hi-speed internet access on a tight budget

With another member of the owners' association, I've been tasked with designing and setting up shared, hi-speed, internet access, for our apartment building. We have very little budget and hope to be ...
0
votes
1answer
96 views

I can't access some domains from one of my three internet providers. How to troubleshoot?

I have three internet providers at my office: Telepacific (3/3Mbps), SkyRiver (12/12Mbps), and Verizon FiOS (75/35Mbps). (The reasons for three connections are outside the scope of this issue.) I have ...
2
votes
1answer
811 views

Sharing an internet connection from a virtual Windows 2012 AD Server

I have a virtual HyperV network used by a number of virtual development and testing servers and an all-in-one Domain, DNS, DHCP server; I want to keep the many virtual servers separated from our main ...
0
votes
2answers
172 views

IP Routing with 2 Subnets

We currently have a Cisco ASA on a range with only two usable IP addresses. The Cisco has 217.67.255.31 and the BT NTE box (for the leased line) has 217.67.255.32. (on /32) Now we want to split this ...
2
votes
1answer
3k views

DNS Issue Windows Server 2012

Background: I have a windows server 2012 install with AD, DNS and DHCP. I also have a netopia router/modem providing my WAN access. My router/modem is configured with DHCP off and connected to a 24 ...
-1
votes
1answer
170 views

New Fiber Installation Resulting in Slow Download Speeds [closed]

TWC 80Mbps Cisco ASA 5510 (MTU 1500) Download speeds on my Windows and Mac machines are ~200KB/sec. If I use a download manager that opens 20 concurrent connections I can hit the full 8MB/sec. I ...
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votes
1answer
75 views

How do routers manage multiple data streams? [closed]

Routers manage data connections between the internet and computers or connections between computers on a LAN. It makes sense that when, for example, a computer requests music from Pandora, that ...
0
votes
3answers
209 views

CentOS Network Interface Priorization

I have a CentOS server with 2 network interfaces with configurations: eth0: DEVICE=eth0 BOOTPROTO=none BROADCAST=10.0.0.255 HWADDR=xx: IPADDR=10.0.0.2 NETMASK=255.255.255.0 NETWORK=10.0.0.0 ...
5
votes
0answers
357 views

Freebsd change default Internet channel route

I have two Internet channel and Gateway on freebsd. When I switch channel with the command route change default chan2, the command netstat -nr shows changed default route. But traceroute shows that ...
0
votes
1answer
96 views

Internet usage on my network

I need internet usage of computers on my network. Can ISP provide me with a detailed internet usage of individual computers in my network?