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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3
votes
1answer
721 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
94 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
236 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
455 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 ...
0
votes
1answer
310 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
391 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
108 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
510 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 ...
2
votes
1answer
710 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
148 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
2k 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
74 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
187 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
309 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
95 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?
0
votes
2answers
183 views

Understanding traceroute-result / the connections between ISP-networks

I was playing with traceroute and discovered that I have a gap in my knowledge on how the Internet works. So, in order to get a better feeling for what happens when I connect to a host, I think I ...
-4
votes
2answers
98 views

How does a private intra network connect to the internet? [closed]

Yesterday I visited the offices of RailTel - a public company in India that provides communication backbone to the Indian Railways, they had a very sophisticated setup of Optical Fiber cables for data ...
-2
votes
1answer
93 views

Unusal internet traffic drop off [closed]

I'm after advice on how to approach a problem I'm having on my e-commerce site. Occasionally, the site suffers a levelling off of users on the website, compared to our historic traffic this is ...
0
votes
1answer
48 views

Site-To-Site VPN Failover

Conceptually, how does this work/ would be configured in a Cisco environment, I realise this is quite an open question so please let me narrow it down. Let's say we have two sites: SiteA and SiteB, ...
0
votes
2answers
67 views

Controlling Internet Access

I have just setup a network running on windows server 2008 R2. the server serves as DC with AD services, DNS, DHCP roles installed. MY issue is this, due to the limited bandwidth size, we decided to ...
-1
votes
1answer
383 views

RDP connection works but actual internet browsing not [closed]

basically I got Windows 7 dedicated server and Remote Desktop Connection to it works, while actually browsing internet doesn't (pinging, internet explorer). The details I've been given from host ...
-1
votes
1answer
155 views

DNS Error server 2012 domain

We have a server running 2012 essentials as Domain controller and DNS and a few other bits. But over the last few days suddenly all the client computers on the network have lost Internet connection. ...
0
votes
1answer
120 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
134 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
2answers
87 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
213 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
85 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 ...
9
votes
3answers
510 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 ...
0
votes
2answers
12k 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
165 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
1k 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
617 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
1answer
446 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
862 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
211 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
64 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
1k 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
146 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
3k 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 ...
0
votes
1answer
52 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
485 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
73 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
1answer
311 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 ...
-1
votes
1answer
412 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
272 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
1answer
132 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 ...
1
vote
0answers
239 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
68 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
158 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
142 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 ...