IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.

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2
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5answers
44k views

How to extend IP Range from 192.168.1.1 to 192.168.2.254

Here's my question. I currently have a network setup to have Static IP manually assigned between 192.168.1.1 and 192.168.1.99 and the rest (192.168.1.100 through 192.168.1.254) assigned automatically ...
63
votes
6answers
494k views

How to determine the hostname from an IP address in a Windows network?

My LAN has 50 Windows hosts. At the Windows command line I try ping to get the IP address of a running Windows machine. The question is how to get hostname of a specific IP address in the same ...
1
vote
2answers
1k views

I need an outside ip address on a device inside my network

I'm working with a company with the following network - AT&T DSL internet access through a Netopia 3347NWG router serving DHCP to about 25 workstations; 192.168.1.0/24. They're getting a ...
1
vote
2answers
133 views

How to map something to an IP?

For starter, let me say that servers and stuff like that are really not my strong point, so I'll try to explain myself as I can because I forgot the name of the thing I'm trying to do. Let's say in ...
1
vote
6answers
2k views

1000 ip addresses

I need to get 1000 ip addresses and run virtual server per each ip address, what are the best options of getting so many ip addresses? Edit: I am currently located in US. One option is to buy VPS ...
3
votes
4answers
486 views

IP addresses and geographical locations

A colleague of mine asked whether IP addresses could be "approximated" to physical location. As with most IT questions, "it depends" was a response I used frequently. Is there a service or program ...
1
vote
2answers
1k views

How do I setup a router to forward packets (to/from) a specific IP to a specific _hardware port_?

I would like to route all traffic to 192.168.1.10 to hardware port 1 on my router and all traffic to 192.168.1.11 to hardware port 2 on my router. The issue here is that I have a network attached ...
20
votes
3answers
30k views

How do I block specific IPs and IP ranges in IIS7?

I'm trying to block various IP addresses from every site that I have hosted from an server running Windows 2008 and IIS7. I've found various information about how to do this using Deny rules from ...
0
votes
2answers
196 views

How to assign IP to physical machines?

Excuse my ignorance, I want to know if its possible to setup untangle in ESXI such that it will be able to assign IPs to physical machines outside the ESXI box. Here is my setup: 1) Management ...
0
votes
1answer
326 views

What's a typical turn-around / response-time for this query/reply scenario?

I'm doing a feasibility study on a proposed wireless/wired network topology for a coming project of ours. A rough description of its use is "like an industrial sensor system". It looks something like ...
0
votes
1answer
558 views

Changing default openVPN IP in linux server

The problem is that we have a public OpenVPN service. Pay €9.95 and you get an OpenVPN account at currently half a dozen of servers for a month. This means there are always and will always be some ...
0
votes
3answers
62 views

Do services exist to offer relaying to and from long-term fixed IPs?

I have a number of Linux servers (dedicated and VPS) with their own fixed IP addresses. I would like to be able to acquire a set of long-lived IP addresses that could then be assigned to the servers ...
0
votes
1answer
1k views

Any way to filter IP's when logging queries? (BIND 9.3)

I would like to record queries to my DNS from a particular ip. Is this possible? Right now I have this: channel query_log { file "/var/named/data/queries.log" versions 2 size 1G; ...
6
votes
2answers
7k views

Can the same wildcard SSL certificate be used on different IP addresses and/or boxes?

Example: Wildcard SSL certificate for *.example.com installed on two different boxes. hostEU.example.com A 60.70.80.90 hostUS.example.com A 200.210.220.240 I assume this is a perfectly valid ...
0
votes
2answers
577 views

Restrict destination IPs from a WiFi connection?

I'm a developer and not a sysadmin, so I'm going to ask this question the best I can. I am working on a web application for mobile devices. Since it is in development, it is only available on our ...
1
vote
4answers
3k views

Make a process listen on 0.0.0.0 (or not 127.0.0.1)

Both boxes in question are RHEL5. I have a python RPC server running on localhost port 8000. When a client running on the same machine tries to connect, everything works great. When a remote client ...
-1
votes
3answers
90 views

Changing web host

right now we host our website in an ISP which is also registers our domain. the company now is entering a mobile operator business which requires that the website to be moved to our internal network ...
1
vote
4answers
7k views

Workaround for blocking SIP port (5060) by ISP

I found out my ISP is blocking outgoing SIP port (5060) at home. I have a remote Linux server that I can use to listen on different port than 5060 and do the forwarding for the traffic. Not sure what ...
1
vote
3answers
850 views

Serve multiple servers from same ip address

I saw other questions about this that were similar, but not exact. So, my issue is, I have a home server that hosts my website and uses my outside ip. Well, rather my domain name directs to that ip. ...
136
votes
4answers
135k views

What's the difference between ip address 0.0.0.0 and 127.0.0.1?

I do know that 127.0.0.1 ~ 127.255.255.254 are the loopback IP addresses for most modern operating systems and we could use these IP addresses to refer to our own computer. But what's 0.0.0.0? It ...
1
vote
4answers
5k views

How does a host route IP packets if it gets two IP addresses?

To clarify my question... I am wondering how does the Linux kernel route packets on a multi-home host? With 'multi-home', I mean the host has multiple NICs to send packets, for example my Debian in ...
0
votes
4answers
774 views

How to make website inaccessible by ip?

My site can be accessed from both www.mysite.com/ http://my.ip.add.res/ I would prefer only the first method. Can I prevent my website from being accessed by IP ? I am using Litespeed and I can ...
4
votes
3answers
9k views

How do I configure a subdomain to point to a different IP from GoDaddy

Simailar to this question, I want to configure DNS hosted with GoDaddy to have a subdomain on a different IP from the root site. The issue I am having is that GoDaddy uses a GUI and does not grant ...
1
vote
1answer
63 views

How to prevent access to a single file based on IP using .htaccess?

I asked this question at stackoverflow but I didn't recvie any solutions so I think the good people at serverfault may be able to help. All the resources I've read explains how to prevent access to ...
2
votes
3answers
355 views

how can i add another new ip to my ubuntu server?

i got a new IP for my server from my host. the server is already hosting one site. i got a range of IP. like 23.23.23.23~23.23.23.27 how can i add these ?
1
vote
2answers
1k views

How to get an IP un-blocked from the MTA spam lists !

We are trying to shift our corporate email server from our ISP to the rackspace cloud. Looks like who ever used the IP (that my virtual server was assigned) before has abused it for sending a lot of ...
3
votes
3answers
276 views

ssl virtualhosts with apache ip requirements

i have multiple domains i'm using ssl for on one apache install. i know i need to put each domain on a separate IP externally. does the same apply to the IPs behind the NAT? meaning, i have one ...
2
votes
2answers
442 views

tools for geographical redundancy

I'm writing a spec for a high availability application. I need a low budget solution to be able to failover between two data centers. Replicating databases and content I'll be able to manage solutions ...
1
vote
3answers
1k views

Can't Ping an Aliased IP

I've setup two ip aliases on a FreeBSD server's NIC that I intend to use to test a Virtual Host configuration in Apache. My box is running XP natively and FreeBSD virtually using VirtualBox. The XP ...
0
votes
3answers
7k views

How do I change the IP address and hostname on Solaris?

I found lots of Web sites with answers via Google but they referred to changing several files, some of which don't exist. I edited all the files (using Linux experience as my guide) and rebooted but ...
10
votes
2answers
15k views

How to alter the global broadcast address (255.255.255.255) behavior on Windows?

Desired behavior When an application sends a packet to the global broadcast IP address 255.255.255.255, I would like that the packet be sent to the Ethernet global broadcast address ...
0
votes
1answer
495 views

Configuring wireless network with multiple AP's

I have my primary router running ubuntu, which has been working fine for my basically very tiny large-scale setup (if that makes any sense at all). I got a handful of extra soho routers which I ...
0
votes
5answers
4k views

openVPN and multiple external IP addresses

I currently have an openVPN server with multiple external IP addresses. I'd like to have all VPN connections (tun0 interface, and/or 10.19.88.xx IP range) to take the 2nd external IP address as ...
15
votes
4answers
21k views

How is route automatic metric calculated on Windows 7?

KB299540 explains how Windows XP automatically assign metrics to IP routes: The following table outlines the criteria that is used to assign metrics for routes that are bound to network interfaces ...
1
vote
3answers
981 views

OpenVPN: Route all traffic through server from client config

Is it possible to somehow force all IP traffic through our corporate OpenVPN server by just changing the client config?
3
votes
1answer
2k views

Public and private hosts in the same BIND zone

For my particular setup, I've got control of a BIND 9 zone file for, say, example.com. There are several hosts in this zone, such as www.example.com and mail.example.com. I want the public internet ...
2
votes
3answers
1k views

Resolve the same DNS name to different IPs depending on client IP network

Is it possible to setup DNS server (Win2k8) thus the same DNS name (an A record) is being resolved to different IPs depending on some option. E.g. example.com for clients from 192.168.0.0 to ...
0
votes
1answer
96 views

COTS T1 over Ethernet/IP solution?

I am looking into a low cost solution to run a T1 link over ethernet, I found this one: http://www.rad-direct.com/Product-TDMoverIP-Gateway-IPMUX11.htm $1500 for the link. Anoyne else have other ...
8
votes
5answers
97k views

How to work out how many IP's you've got available on a /29 network mask

This might sound like a stupid question but I would really like to know how I would work out how many IP's I've got available on this network range: 196.44.198.32/29 Can someone explain it to me, ...
4
votes
3answers
19k views

Adding a second IP to Debian Server

I was given a second IP by my server provider. I am running Debian 5.0. I thought I knew how to add the IP to the system and configure with apache, but I have not yet been able to. The primary IP ...
1
vote
2answers
1k views

How can I do a “Coming Soon” redirect on IIS6 for everyone except a couple specific IPs?

We're about to do some major maintanence on an IIS 6 / ASP (Classic) website. We want all visitors to be redirected to a "Coming Soon" page (or something similar). This should NOT apply to our dev ...
0
votes
6answers
4k views

Can I ping 127.0.0.1 if my computer isn't connected to a network?

Does pinging 127.0.0.1 work on your machine if it's not on the network? Can these two machine be on the same network? machine A (192.168.173.11) machine B (192.168.163.11)
2
votes
4answers
2k views

Restrict VPN client traffic to certain domains/IP

Is there any way to restrict a VPN client to only route certain traffic via the VPN and the rest via their local gateway? For example: traffic to a certain IP or domain gets routed across the VPN and ...
0
votes
5answers
766 views

Windows 2008 Firewall IP Range

I've got a port exception that I've added to Windows Firewall. And under Scope, I'm able to add specific IP addresses allowed, each separated by a comma. The problem is, how can I enter a range of ...
1
vote
4answers
332 views

program to monitor connectivity [duplicate]

We are a medium sized company which has VPNs to more than 20 locations. We sometimes get complaints regarding access to the terminal server, and I would like to diagnose this as either a server issue ...
8
votes
4answers
2k views

What is the origin of the private network address 192.168.*.*?

I had a smart (but non-technical) user ask me today: Why did they pick 192.168.. for a private network address? The only answer I could come up with is because 192 = 11000000 in binary. And 168 is ...
0
votes
1answer
548 views

JBoss Application Server on Rackspace Cloud/Mosso

So,I have a cloud account with Rackspace Cloud. I've set up a server with them. They gave me an IP and a password. I SSH'd to the machine, installed Mysql-server, Java and JBoss 5.0.1. I started JBoss ...
0
votes
3answers
3k views

Windows 2003 Server Static IP resets to DHCP on reboot

I have a customer who has a Dell Server running Win 2003 R2 Server. This is an existing machine that we had setup with a static IP. Now they want to change it to another static IP. When they go and ...
0
votes
2answers
910 views

Windows 7 RDP Problem - connecting to external zone with computer names

I recently installed Windows 7, all is well so far, apart from using RDP to access computers outside my domain. We use a datacenter, outside of our domain. I was using Windows Vista before (not sure ...
8
votes
2answers
8k views

ip address scope parameter

In Linux, the command ip address add [...] has a scope argument. The man page says that the scope is "the scope of the area where this address is valid". Follows the list of legal scopes: global ...