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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55 views

ESXI Server Behind ASA5506-X Router, How to Permit VM's to Access Outside Internet?

I have an ESXI Server, It works fine attached to the DSL Modem in bridge mode, All the VM's work, BUT. When I move the esxi servers cat5e cable from DSL modem to a dedicated interface on the Cisco ...
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0answers
26 views

Windows Server 2012 Internet speed very slow [on hold]

I have Windows Server 2012 on my VPS, lately I have experienced very slow RDP and VNC, tried TeamViewer but no luck. I thought it could be some hardware problem, but I tested speed (speedtest.net) and ...
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0answers
16 views

How do i make my web browser choose local virtual host over a site on internet [closed]

I have different virtual hosts on my local machine i added them into /etc/hosts by ip 127.0.0.1 They were working fine but today when i try to access one browser was keeping connecting to internet ...
0
votes
1answer
18 views

No internet connection via my OpenVPN server (solved)

I have OpenVPN up and running on my server. I want all traffic from my clients to be routed trough the VPN server. The client connects just fine but is unable to connect to the internet. Server ...
0
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0answers
5 views

Connect a redhat server that is under a vpn to internet

I have to configure the environments of like 10 redhat servers(dbs, stash, test, dev, production), but those servers are under a VPN and they have no internet access, I can connect my company mac to ...
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votes
0answers
30 views

How can I make an internal server access internet through a local PC?

I have a Ubuntu PC (10.10.3.3) which has access to a Fedora server (10.10.2.210) within the same LAN and to internet through another server (with internal and public IPs). The Fedora server has no ...
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votes
0answers
12 views

Sharing an internet connection with 3rd party DHCP server on Windows (other than default ICS) [on hold]

I am writing a script that would install software packages on 150+ devices that runs Open-wrt Linux. I will be running software installation scripts on 8 devices at a time via ssh. Since I do not have ...
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3answers
31 views

Manage/Limit Internet Bandwidth on Specific Wireless Network [closed]

I offer wireless internet to my tenant and the problem I have is we are constantly hitting the cap for the monthly internet usage. What I ideally would like to do is create 2 wireless networks: one ...
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1answer
43 views

Why would a network resolve some sites and not resolve other sites?

Win 8.1, IE 11 I recently made some changes to my internal network and suddenly attempts to access Bing are giving an error. My network is: When I connect either wired or wireless to the wireless ...
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0answers
4 views

Why does my firefox send TCP packets even when idle? [migrated]

I run firefox on Debian. I've disabled all mumboo-jumboo healthy and crash report tracking. There is no TCP connection to any website, I leave firefox oppen at the 'create new tab' When I turn off ...
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votes
1answer
44 views

No Internet on router with pfSense [closed]

Sorry in advance if a similar question has already been posted. I am with Sky for broadband and have a router providing DSL connectivity. I have a cheap 64 bit desktop PC running pFsense as a ...
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0answers
22 views

Gateway to internet on CentOS 6

I have 2 CentOS 6 linux servers say hostnames cent001 and cent002 cent001 has 2 Nic's 1 Bridged and 1 Nat cent001 is able to ping google server 8.8.8.8 with the help of bridged NIC cent002 has only ...
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vote
1answer
56 views

Incoming SSH works, but all outgoing fails

Terminology I have a server (I'll refer to it as S1 ) running in the cloud, but it is misbehaving. I also have another server (S2) running in the same cloud network, connected to S1 through a ...
1
vote
1answer
73 views

Minimizing attack surface on fresh 2012 R2

I'm in the following situation, i will have a fresh server connected to the internet (if required with a firewall between the net and it simply droping all packets on ports other than the one my ...
0
votes
1answer
40 views

Cisco 2621XM Configuration with Comcast Business Modem

I have a Cisco 2620xm router that I have ran into trouble getting it to connect to a comcast modem/gateway for internet service. The router and modem used by Comcast is a DPC3... The interfaces on the ...
0
votes
1answer
27 views

Caching UDP packets with iptables

I have a server set up to forward all of its packets on a certain port to another host with the following command; iptables -t nat -A PREROUTING -p udp --dport PORT -j DNAT --to-destination IP:PORT ...
1
vote
0answers
62 views

Postgres streaming replication over Internet

all: I want to set up two PostgreSQL servers, one as master server and the other one as a hot standy, using streaming replication. I have done this before in LAN environments, but I would like to ...
0
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0answers
56 views

Self Signed Certificate for RDP over Internet - Why Not?

I was recently informed on SF that using a self-signed certificate for RDP over a public interface is not recommended. In this particular scenario, I'd like to understand more about why. The ...
2
votes
0answers
23 views

How fast should internet speed be to host a webserver? [duplicate]

We host our own linux webserver in house. The company's Internet connection speed is 100MB, and the server runs no problem with it. We are planning to have another webserver located in another place, ...
0
votes
1answer
38 views

Troubleshooting poor point to point (over internet) bandwidth between two machines

My problem started out as poor bandwidth between a 64 bit Win 7 Home OpenVPN server in location A (Northern Europe) and a Win 7 or Linux Client in location B (Southern Europe). Location A has FTTC ...
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votes
2answers
144 views

How to check Internet bandwidth in Ubuntu? [closed]

Instead of going to sites like http://speedtest.net , or others, I want to check my current Internet speed from the terminal on Ubuntu. How can I do it?
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votes
1answer
86 views

Make squid (or tinyproxy) return cache EVERYTHING and return hits on Internet outage

I am wondering how to configure squid (or tinyproxy) to cache EVERYTHING and return HTTP 200 hits, even on Internet outage or if original source is 404? Basically, I want squid to look in the cache ...
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0answers
81 views

Can iSCSI and Internet work on same NIC? [closed]

I have a Synology RS815+ that supports iSCSI with 4 GbE ports. I have two Mac Mini's (2014) with built-in GbE and a TB to GbE adapter. All 8 connections are tied to the same switch, with client ...
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vote
1answer
21 views

How to show the contents of a lan server through another internet-connected

I need some help. We have 2 servers (centos and ubuntu). 10.0.0.1 and 10.0.0.2. On 10.0.0.1 We have our intranet services (web applications) (10.0.0.1/sis1, 10.0.0.1/sis2...) On 10.0.0.2 We have ...
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votes
1answer
37 views

Measure traffic of streaming audio/video in whole office

I would like to measure the different traffic used in our office, specifically streaming of audio and video. I'm trying to assess whether there is any affect of people using streaming on our internet ...
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votes
3answers
38 views

Is there a way I can find all domain names that have a CNAME with a given value?

Is there a tool using which I can run a query that returns all domain names that have a CNAME with a given value (e.g. something.example.com)?
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1answer
136 views

Windows Server 2008 is connected to network but Internet Explorer can't browse

I'm creating a Virtual Machine using Hyper-V with Windows Server 2008. The VM is ok, I can connect all my network and I can ping any address with success. But when I try to browse using the default ...
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2answers
78 views

Individuals able to hit our bandwidth cap… Only a recent phenomenon?

We have a 10Mbps (synchronous) connection with our ISP. Recently we have discovered that if a single user is watching Netflix, or if I run Windows Update on a PC, we will totally saturate that 10Mbps ...
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votes
2answers
94 views

Reaching Local Network which is under NAT with no public IP

I have a place called (lets say) REMOTE. REMOTE is connected to the Internet using 3G/4G Modem + Router. Unfortunately my mobile Internet provider does not give me public IP address. In REMOTE I have ...
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4answers
491 views

Communicating via separate network cards

Assume you have a web server with two network cards (and their associated ports), let's call them A and B. The idea is to connect one port (A) to the internet and the other (B) to some isolated ...
0
votes
1answer
93 views

Server 2003: DNS seem to only resolve google.com but no other website

I have a windows 2003 server running AD, DHCP, DNS and RRAS. I had to remove and re-install AD and DNS last week, after the installation, everything seem to work find except for browsing websites. ...
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votes
3answers
49 views

How do I know the type of connection from the IP Address? [closed]

The website GameFAQs uses the IP Address to know the type of connection and decide the level of a new user. See image: http://i.imgur.com/ZfJK8JH.png How does it determine the type of connection ...
0
votes
1answer
52 views

How can identify and quantify physical plant (network capacity) in my local area? [closed]

I am interested in identifying physical plant and network capacity in my local area, which happens to be Boston, but could be anywhere. For example, I understand that in Boston there is something ...
0
votes
1answer
22 views

Internet browsing issue for all network users in different timings [closed]

I have a WatchGuard Firebox that I've recently configured. All of the policies look fine and all appropriate services seem to be working correctly. However, we are facing browsing issue suddenly ...
0
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0answers
87 views

Internet lost after 10 minutes of connecting Open ERP server

So basically I have an open-ERP server connected to a router so that i can access it from home through internet. the network structure is like this: Etisalat internet box->cable->router(lynksis ...
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2answers
399 views

NAT a single IP using 2nd WAN Internet

I have a mikrotik RB750 (6.22) acting as a gateway for my LAN. Here is the basic configuration: Ether1-WAN1 (1.1.1.10/24) IPs are hidden for privacy Ether2-WAN2 (2.2.2.20/24) Ether5-LAN ...
3
votes
1answer
109 views

Somebody created subdomain without my knowledge. How? [duplicate]

Got an interesting email from CIRA today with: CE14-12545 [Malware hosted on ygglhalayvtwy.khabarov[.]ca] URL: http://ygglhalayvtwy.khabarov[.]ca/xnor/orladjaup.jpg IP: 204[.]44[.]87[.]184 MD5: ...
0
votes
1answer
125 views

Windows 2003 R2 traffic shaping & QOS

In our small office a LAN is connected to a modem router that will VDSL to the Internet. As a Windows 2003 R2 server exists in the LAN, I was wondering if is there a way to use this server as a ...
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votes
1answer
92 views

Prevent internet from being monopolized by one user

In our company, there is a training room which contains 15 computers. Our employees (or external individuals) can follow a training there using these computers. However, we want to prevent the ...
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votes
1answer
120 views

Idrac 6 internet settings enabled to connect to internet via ssh [closed]

I just installed the idrac 6 enterprise into dell r410. I insert the cable on it. But there is no connection. Green light on !! Normally when i restart the server and when I use the normal connection ...
0
votes
0answers
49 views

Can poor Internet connection affect the IO read on my server?

I'm trying to spot the culprit causing too much IO read in my server. Issuing IOTOP -ao I have come accross many httpd processes among which one caught my attention: PRIO USER DISK READ ...
0
votes
0answers
81 views

openVPN on another IP

I had a working OpenVPN on my server, and it was working fine, redirecting traffic to the/from the internet, but when i have found that the traffic to the services on this server not routing through ...
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votes
2answers
282 views

Restricting internet access of some client systems of LAN to a few websites using gateway

How to limit internet access of most systems in my LAN to a few websites and block all the other websites? Also want to bypass that restrictions for some systems. All systems have static IP address ...
0
votes
1answer
52 views

How can I adapt this technique of using a proxy (in firefox) to wget and yum ? [closed]

I work in a large organization where some people have extremely restricted internet access and some are given a fairly large amount of freedom. The way my organization manages this is by running a ...
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votes
1answer
45 views

DNS settings on computers and switches [duplicate]

Noob questions. I have static IPs on many of my Windows computers in our Windows 2008 domain. In the network settings at each, I have an a static IP and subnet. The default Gateway is set to our ...
0
votes
0answers
152 views

Internet drops out randomly for short periods of time (LAN issue)

I run a network (I'm just a math teacher) at my school. We get random 10 or so minute periods (I'd guess three a day on average) where the Internet is not accessible from within the LAN. If I go to ...
0
votes
1answer
95 views

Connectivity problems on website

We've been experiencing some connectivity problems on http://www.scirra.com. Running a DNS check: http://dnscheck.pingdom.com/?domain=www.scirra.com We're getting some errors: Delegation not ...
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0answers
54 views

Source ip based Anycast-BGP?

I'm just getting interested in networking so don't be too harsh on me :) Ideal: 2 servers with shared ip; ip X Client 1 pings ip X > always server A Client 2 pings ip X > always server B ...
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votes
1answer
55 views

Geo distributed ip [duplicate]

When i ping 8.8.8.8 from my home computer (europe) i get around 26 ms latency. When i ping 8.8.8.8 from a server(US) i get around 1 ms latency. When i ping my (US) server from home (europe) i have 130 ...
0
votes
2answers
178 views

Best way to connect the network to the internet?

I'm setting up a small network for an air cadet squadron I help to run. We've just moved into a brand new HQ which is kitted up with ethernet ports throughout the building so I thought I may as well ...