-2
votes
1answer
49 views

DNS hierarchy with bind [closed]

I'm doing a project from class in which I want to simulate a dns hierarchy that works as the global internet dns hierarchy. The structure is like this: Hierarchy So all the requests will be sent to ...
1
vote
3answers
151 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
vote
0answers
183 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
86 views

Is setting up BIND DNS required for making server accessible from internet

I have installed CentOS-6 server in our DMZ. I have a public IP address which I will use for it. Now, how should I set up its DNS in order to make it accessible from internet? Is there any particular ...
5
votes
2answers
133 views

Effects of internet connection speeds on server queries

Can my internet connection significantly effect queries run on phpmyadmin? I am currently 18 down and 30 up. I switched internet connections today and noticed a deep drop in query performance. The ...
0
votes
1answer
170 views

Provide Internet access for different VLAN

I have several managed switches at work that connect all computer within our office to the ADSL modem. However I would like enforce a VLAN policy to isolate traffic within the network. Through my ...
0
votes
1answer
234 views

ping OK, nslookup OK, wget locally OK, remote HTTP false

I'm trying to access http://domain.com/test.html from internet, but getting error Server is running CentOS I'm using DSN hosting (yandex.ru) for domain.com Ping server by ip = OK Ping server by ...
2
votes
4answers
251 views

Mounting a file system over the internet

I built a web application that runs on a virtual server for one of my customers. It includes the facility for them to upload files, but they now want to store those files on a server in their office. ...
2
votes
3answers
6k views

How can I find out which server OS a particular site is running?

Is there a way to check which server OS a particular site is running. For example from linux command line. Maybe via telnet? But all I can get from "telnet www.google.com http" is: Trying ...
5
votes
3answers
468 views

Tools for Remote Control of Linux over internet [closed]

I am looking for some tools which can give remote control of a Linux machine over Internet. As of now I know of TeamViewer, but it looks like too expensive when used commercially. I being part of a ...
2
votes
3answers
512 views

On CentOS 4.5, How to Masquerade a connection using MAC address?

Currently we give Internet access using ip address in our firewall script as follows iptables -t nat -A POSTROUNTING -s 192.168.1.40 -j MASQUERADE But we have noticed that some guys steal these ...
0
votes
1answer
158 views

If linux server is connected to router, internet connection for the whole network will not work

I have a machine (Fedora) which is using iptables (acting as firewall). The system worked a long time, but now there is a problem. The internet connection was failing. I looked through and found out ...
0
votes
2answers
522 views

Trying to host my own domain, using BIND and CentOS 6. Please check my named.conf and zone for errors

delegated the namesever/ip records around 24 hours on the registars website but things aren't working. NAT: forwarding all UDP/TCP requests to internal server IP on port 53 (ISP not blocking) and ...
-6
votes
1answer
189 views

Server is not reachable because it was setup as Static IP. Must requires DHCP mode [closed]

ISP provides Static IP. Based on MAC address, so that forever the end user have Static IP (to do mail/www servers) Step 1: So as a user we purchased this module called Static IP using MAC address ...
0
votes
1answer
875 views

Linux-Based, Open-Source, Speed-Test Module

I am setting up diagnostic servers on local networks (Redhat 5.5). One requirement is a speed test where users in the network can test the speed of their internet connection (e.g., ...
0
votes
2answers
82 views

Procedure for Setup of Internal Cache Server

I currently have a small business where many of the computers download the same fies over and over again (for example Windows Updates). What I'd like to do is setup a cache server, something that'll ...
1
vote
4answers
234 views

Internet speed in Linux via command

I am running several sites and I was trying wget and I noticed slow speed. So I suspect that my sites are taking considerable amount of traffic. Question is, how I can really detect the total ...
0
votes
5answers
204 views

Ideas for campus Internet Login mechanism?

I work at this university and I'm seeking an effective solution for an internet login mechanism. We have a leased-link at our campus, which is shared by both staff & students. All systems ...
1
vote
1answer
170 views

Setting up a failover cluster on the internet?

Is it possible to use VPS hosting services available to set up a Linux Failover cluster on the internet ? (I believe Amazon cloud services allow this.) VPS providers allow you to use multiple ip ...
2
votes
2answers
306 views

Network not working properly - 3 computers working, 3 not working - what could it be?

So I've got this setup ... Fiber cable broadband connection -> Media Converter -> Switch (8 ports) -> PCs The network does not have DHCP, all settings are manual. 3 computers can connect to the ...
0
votes
1answer
446 views

What should my FQDN be?

When I setup my server, the guide said to use ns1.domain.com, (both my nameservers are ns1.domain.com and ns2.domain.com). However, recently, I changed it to www.domain.com, and everything works.. ...
0
votes
2answers
1k views

How does a proxy server work for anonymous browsing?

I have seen that at many places like colleges and schools block sites like Facebook, Myspace. In some cases people are able to use a proxy sites and proxy softwares(ultrasurf,gpass etc.) to bypass ...
0
votes
3answers
851 views

Test Linux server internet speed from command line up to 1gbit/s

Does anyone know a way I can test a Linux servers connection speed from ssh? I could use wget but I can't find a file that can be downloaded fast enough. I'm trying to verify that the server can do a ...
1
vote
4answers
137 views

Share internet in Linux

I have an 3.5G USB Modem that I want to share its internet connection in Linux. I tried already, but only got having no internet on my own PC, still without sharing it. It's really hard to find some ...
0
votes
3answers
293 views

Network is going down once per day

Once per day the network on eth0 is going down and we need to do sudo ifdown eth0; sudo ifup eth0 to get the network up. Here is the syslog: Feb 11 12:48:01 www-tech-1 dhclient: DHCPREQUEST of ...
0
votes
1answer
790 views

pppd: CHAP authentication failure - sometimes

I got a group of embedded devices (running Linux) repeatedly connecting to an ISP over a ordinary analog PPP connection. Sometimes (every third connection time) the pppd authentication breaks up with ...
2
votes
2answers
6k views

how to forward wlan0 to eth0?

I get internet from my wireless wlan0 and I would like to forward it to eth0 which is connected to another laptop. How can I do that? Thanks. Edit: my wireless card is intel: 0b:00.0 Network ...
3
votes
3answers
789 views

Secure internet accessible NAS

I would like to be able to set up and access a NAS securely via an internet connection. I would like to use an existing linux server I own, so essentially I am looking for recommendations for which ...