IP address is a numerical label assigned to each device participating in a computer network that uses IP for communication.

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Cant access LocalHost from Browser

I hav installed apache2 & php 5.3x on centos 6.3 by using following commands: yum install httpd yum install php Now I'm trying to access php page from my local machine browser using following ...
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1answer
80 views

Static IP for calls from EC2 to external web service

My purpose is to do web service calls from Amazon EC2 instance to external provider. The web service provider only allows calls from predefined IP addresses due to security reasons. Is getting an ...
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3answers
547 views

Find ISP/IP address by geographic location?

I'm trying to find an ISP or IP address by geographic location, Is this possible?
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1answer
53 views

Can ISPs see which IP that has been assigned to a customer in each others network? [closed]

Is there some sort of shared knowledge between ISPs that make them able to see which customer an IP has been given to, no matter which ISP the IP belongs to? I.e. is someone that is an ISP able to see ...
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5answers
270 views

Trusting DHCP-assigned IP addresses only

I manage a reasonably small network (150 machines or so). We have a DHCP server set up with reservations for all of the machines on the network and an exclusion zone set up over the entire range so ...
0
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2answers
908 views

server host name and server ip address redirect (Debian, Apache)

I have the following folder structure on my Apache .../var/www/www.x.tt/htdocs .../var/www/www.y.tt/htdocs I have defined a virtual host for each. So if I type in www.x.tt in my browser I ...
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4answers
1k views

Multiple SSL Certificates Running on Mac OS X 10.6

I have been running into walls with this for a while, so I posted at stackoverflow, and I was pointed over here... I am attempting to setup multiple IP addresses on Snow Leopard so that I can develop ...
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1answer
143 views

Get/Assign IP addresses assigned by the DHCP sever with DLink switches in between

In our office the setup is like we have a UBUNTU server with DHCP Server connected to all the PCS via 24 port and 8 port DLink switches. How can I find all the PCS(with client name, ip and mac ...
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1answer
203 views

Multiple IP address in a machine [closed]

I am running an opennebula instance with opensuse as a guest machine. There is only one network interface eth0 with ipaddress 192.168.122.155 . However I can ping the machine 2 IP address ...
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3answers
1k views

Any VPS providers with IP failover? [closed]

I thought keeping this list updated could be useful for others. Here are the ones I know: Linode: http://blog.linode.com/2007/11/12/support-for-high-availability-ip-failover/ Mammoth Hosting: ...
4
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1answer
259 views

Is the US Department of Defense ip address 6.3.6.0 valid? (reported by Apple products)

I've recently seen a lot of this IP address. A geo ip lookup tells me it is US Department of Defense Network in Arizona so why do some routers (here and here) default to this address? The real ...
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1answer
1k views

How to find the IP Address of a vm running on VMware

I am running VMware Workstation on a Linux box. When I power on a centOS (Linux) virtual machine I cannot get mouse or keyboard control of the machine. I suspect that it has something to do with ...
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2answers
574 views

Why does ip address have a dash [closed]

Why does my ip address have a dash at the end of it? It was assigned to me by AT&T Uverse. 106.206.186.224-8
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2answers
282 views

How even is the distribution of digits in the last part of an IPv4 address?

I have a redirect script operating on a website I created. It sends 1/3 of visitors to site A, 1/3 of visitors to site B and 1/3 to site C. It works by dividing the last part of the users IPv4 ...
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1answer
89 views

Is it possible to distinguish traffic from different computers from behind a router?

The mac address would be that of the router, I presume. But could I distinguish the ip addresses of the computers behind the router, or could I only see a global ip address that belongs to the router? ...
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2answers
6k views

How do I configure Shrewsoft's VPN client to only route traffic to a certain IP address through the VPN?

We're using Shrewsoft's VPN client to connect to a third party development server. However, it seems to be configured to send all or nothing through the VPN. The devs have to disconnect from the VPN ...
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1answer
230 views

Multiple DNS A record for one machine

I saw this post but it doesn't really address my situation. I am trying to add a second Address record for the same IP address but for some reason I am constantly getting a 404 bounce from ...
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2answers
625 views

Does each domain have to be tied to a unique IP address when using SSL certs?

I have a Zimbra ZCS 7.1.3 server it running the OSE version. The server hosts 4 domains for email. Each of the email domains has its own SSL cert that is self generated. Something that has sort of ...
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2answers
161 views

Cloning IP address and/or MAC address for server fail-over

I am currently providing some web applications to my customers (apache/php/mysql on Windows server). I'm looking to provide some sort of fail-over server in the case my server has a hardware failure. ...
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1answer
218 views

Lvs Load balancer VIP

I have created an alias IP address of my computer using sudo ifconfig eth0:0 172.17.10.173 netmask 255.255.240.0 broadcast 172.17.15.255 My orignal IP is 172.17.6.111 and netmask is 255.255.240.0. ...
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3answers
3k views

How can I find my subnet mask?

The popular answer to the question " How does Subnetting Work? " does a nice job in explaining subnets. I remember learning about the network classes back in CCNA class but that answer mentions ...
1
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1answer
103 views

Adding Static IP's to the NIC

We are currently working on migrating a lot of new machines to our network, and my job this morning was to setup all of the IP Addresses. I worked on this all morning, and when I got back tonight I ...
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6answers
2k views

What is the need for a secondary IP address?

I see that most dedicated hosting providers provide 3-4 secondary IP Addresses for free. I wish to know what are the possible benefits of these secondary IP Addresses. One would be to host ...
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1answer
485 views

Howto maximize utilization of assigned subnet block for DMZ

I'm part time sysadmin for a small hosting company with currently 20 different public servers. We have a 27 subnet block that gives us a maximum of 30 usable IP addresses. That much I know, but how do ...
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1answer
89 views

Finding all network addresses associated with a given hostname

Scenario: a server is multi-homed to a variety of networks (perhaps it is a jump box) DNS has the hostname registered only on one network (the management interface, perhaps) Problem: without ...
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4answers
20k views

multiple MAC addresses on one physical network interface (linux)

Simple question: How can I setup multiple MAC addresses on one physical network interface (linux)? Why? My ISP is checking ip<->mac on GW and I d like to route traffic through my "linuxbox" and ...
2
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1answer
7k views

nginx not serving requests to external IP address

I have nginx running on port 81. I can telnet using telnet 127.0.0.1 81 and everything is fine. But when I try to telnet to my machine from my Mac (an external IP address), I just get this error: ...
2
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1answer
283 views

Intranet web site; sometimes using computer name works, othertimes the IP works..exclusively and alternating

I have created a web application hosted in IIS 7. When I deploy my web app to customers it can be reached via the computer name most of the time, however sometimes it will suddenly stop working. The ...
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1answer
698 views

How to change the network adapter bind order in Linux

The SNMP trap always uses the first IP address as displayed in the network adapter binding order on the computer. For example, assume that the computer has the following binding order: LAN ...
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2answers
863 views

Rewrite URL Domain Name when IP address used

My apache home server listens for HTTP requests on an alternate port (port 8080), but I would like to let users type my domain name (example.com) without having to specify the port. So far I've ...
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1answer
4k views

Permanently change IP address on SuSE 10

I am trying to change IP address of a SuSE 10 machine that is running Tomcat. I need to create a shell script to do this so could not use YaST. As some sites suggested on my Google search, I edited ...
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4answers
401 views

IP Address blocking best way to do this (in terms of security)?

I have had a user trying to hack into my server and muieblackcat pops up on my server, quite a few times. I just wanted to get some advice as to the best way to protect against this ie should i ...
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3answers
4k views

how find datacenter using a ip address related to that datacenter? [closed]

I have a vds and it's really good! I have some problems with my reseller of that server because of their support. I want to buy a server from that datacenter directly. How can I find that datacenter ...
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96 views

Two Websites, two directories, two domains, one IP

I am hosting two separate sites with two separate domain names on the same server. Without using some kind of NAT forwarding, how can I set up my apache server so that, depending on which domain is ...
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1answer
69 views

How do I access a server from a specific IP?

I have a two systems on a private network 192.168.0.0/16. SysA has an IP of 192.168.0.30 SysB has two subinterfaces in linux, ETH0:0 with IPs of 192.168.200.213 and ETH0:1 192.168.90.20. If I'm on ...
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2answers
1k views

Restrict access to website in IIS to a range of IP addresses

I'm configuring a website in IIS6 to restrict access to a customer's IP address range. I've been given their IP address (81.145.41.114) and an IP range (172.17) which I am meant to allow access to. I ...
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1answer
409 views

ipv6 max_addresses in sysctl.conf (Debian 6)

I'd like to assign any number of IPv6 addresses to a Debian 6 host, but I see the following setting, and want to know what are the consquences of setting higher, or does this setting approach limits ...
0
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1answer
838 views

proxying ip from nginx to jetty/gwt

Good morning! I have nginx setup in front of jetty 6, which is running a GWT application. I am trying to forward the ip address, and all the answers I find on the internet tell me to do this: ...
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3answers
182 views

IPv6: Can one use more than 64 bits for the network ID

Wikipedia states: Unicast and anycast addresses are typically composed of two logical parts: a 64-bit network prefix used for routing, and a 64-bit interface identifier used to identify a host's ...
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2answers
216 views

Server reverts to DHCP from time to time

I have an Ubuntu 10.04 server with static IP address configuration: # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static ...
2
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1answer
551 views

Managed switch port-based DHCP allocation - general case?

I saw a strange comment bagging IT departments (i.e. sysadmins) on Slashdot the other day: half the time they cant even do a simple thing like provide a jack with a set IP address for us Reading ...
2
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3answers
4k views

Are same IP address with different submask unique? [duplicate]

Possible Duplicate: How does Subnetting Work? In a same block of IPv4 addresses, can there be same IPs with different submasks? For example, can I have this: 180.70.65.140/26 ...
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4answers
3k views

Resolving real IP address out of a dynamic dns address

I recently opened a dynamic dns user (at no-ip for that matter..) for my own personal needs and especially for ssh-ing my computer whenever I need to, without knowing it's static IP. My questions ...
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2answers
80 views

Changing IP address of current server [closed]

I have VM with IP address 10.10.10.99 how do I change the IP address to something else for e.g. 10.10.10.100 ? I have pinged to 10.10.10.100 and there is no such server in the network. Is there any ...
0
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1answer
301 views

How many assignable addresses are needed for a router-to-router connection?

I have an address zone (let's say 150.41.0.0/16) and I want to subnet it optimally using VLSM. I have a number of VLANs, each with a minimum number of needed addresses, and a couple of ...
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1answer
85 views

Use old server IP address to New server [closed]

Now we are going to use new server to host our website. We are going to use our old server IP address to new server. Can we replace our new server IP address by old server IP address? If possible, ...
3
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1answer
4k views

Can a DHCP reservation use an IP address in the exclusion range?

Windows Server 2008 R2, running the DHCP service. DHCP Scope: 192.168.1.1 - 192.168.1.254 Exclusions: 192.168.1.1 - 192.168.1.99 If a reservation uses an IP address in the exclusion range (like ...
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1answer
309 views

HTTPS for server IP address shows as invalid certificate

I have a website, say www.foo.com with an IP address 1.2.3.4 I have an SSL certificate for www.foo.com and when I visit https://www.foo.com all is good. However if I visit https://1.2.3.4 it says the ...
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2answers
58 views

Synchronize information in same server with multiple ips [closed]

So i have a unix dedicated server and multiple ips. I am running a website on both ip address. 192.168.1.0 192.168.1.1 How do i make it so the files and folders on both ip addresses are ...
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3answers
141 views

What information can an outsider obtain from my system by knowing only the IP address?

If somehow an intruder becomes aware of the IP address of my system: What information can he obtain from my system or about my network? What type of harm he can do to my system remotely?