Questions tagged [ip]

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

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-1 votes
2 answers
640 views

Get domain names from IP addresses from access.log [closed]

Actually I want to see people from which domain access my website. I want to generate the domain names from IP addresses in the Apache access.log file. How can I do this? There are around 54 log ...
1 vote
2 answers
9k views

Web server behind NAT, how to listen for public IP address

I have a debian web server (nginx) running behind a firewall using NAT. The web server is hosting several sites that require SSL and their own IP address. I'd like to have the SSL sites listen to only ...
1 vote
2 answers
320 views

configuring dedicated internet access

I have taken a dedicated internet access service from my ISP. for which i received one P2P IP address with a specified gateway, and 6 IP addresses on a /29 subnet. but they havent specified any ...
2 votes
1 answer
220 views

Issue on AWS/GoDaddy DNS update - Not updating in Brazil

I updated at 2:00AM (Brazilian Time) Route 53 and GoDaddy DNS info for my server, trying to point the domain vitrina.cc to IP 184.72.238.163 I can access the site through the IP but through the ...
1 vote
1 answer
160 views

Client doesn't get new IP when switching between subnets/locations

So here is our setup. We have 14 locations each with its own subnet and router. The routers at these locations have DHCP relay enabled that points back to our central server that is running DHCP. ...
0 votes
2 answers
4k views

Whitelist IP from google-authenticator in sshd pam

My Ubuntu 12.04 server uses the google-authenticator pam module to provide two step authentication for ssh. I need to make it so that a certain IP does not need to type the verification code. The /...
0 votes
1 answer
2k views

Change the default IP address of a CentOS 6 dedicated server

I have a dedicated box running CentOS 6. I'd like to change the default IP address, I googled a lot and I found this suggestion: (1) Run these two commands via SSH: sudo -n ifconfig eth0 down sudo -...
-1 votes
1 answer
140 views

Converting 'ssh -R' to 'ssh -w'

I use ssh remote port forwarding like this: ssh -R $PUBLIC_IP:80:127.0.0.1:80 The local server on 127.0.0.1:80 sees connections as coming from 127.0.0.1. Is there any way at all, hacky or not, to ...
-2 votes
1 answer
182 views

Recording IP cameras on dual Synology Diskstations [closed]

I have currently a very elegant setup for surveillance, where 6 AXIS IP cameras are being recorded on a Synology DiskStation DS1513+. I plan to install a further 2 IP cameras and what I need to do is ...
0 votes
2 answers
75 views

use-either-port multiple interfaces between three nodes

I have a network of three computers, each of which has two ports. I do not have a network switch (the three ports are 10GbE and the switches are prohibitively expensive for now). I would like to ...
1 vote
2 answers
2k views

Windows Server 2008/2012 with 2 public IP, how bind .exe to particular IP [closed]

On Windows Server 2008 R2 or 2012, if I have 2 public IP, how can I manage applications to use first or second IP? Can Windows Server do this (like via Properties on .exe file) or this is possible ...
0 votes
2 answers
3k views

Cisco: Route Outbound SMTP Traffic on Same IP as Inbound

Have a few servers setup behind an ASA 5505, all is well, except for the fact that the ASA only sends the correct smtp outbound IP for the mail server domain itself. Any other domain that sends ...
1 vote
1 answer
6k views

changing IP address of websphere installation

i am not a websphere expert. we are migrating our websphere application to a different server (which has a different IP and hostname). we use WAS network deployment v 6.1. I came across some articles ...
0 votes
1 answer
314 views

Server IP is detected as user IP

the server IP of mine is ***.***.***.234. For SSL, I needed to add another IP ***.***.***.235. This is a vps and the IP address was added by a friend. The problem is: when someone submit comments (...
0 votes
3 answers
462 views

Point dns to vps - How dns works [closed]

I'm moving from a sharedhosting to a VPS and I'm struggling with DNS'. My hosting company only provides me my VPS' IP, and my domain, say mydomain.com is registered a registrar called bookmyname.com. ...
2 votes
1 answer
2k views

force windows server 2008 to use a certain IP address for outbound connections

My windows server 2008 has multiple IP4 addresses, how do I force outbound traffic to only use one of them? We have multiple applications (ASP.Net) that send email via external SMTP servers which ...
0 votes
2 answers
571 views

Elastic IP on Amazon EC2 - How does this effect rate limiting?

I have been reading about elastic IP's with Amazon EC2 instances. I was wondering, a lot of the stuff I do with my server is based on IP limits, like for example google map geocoding which is limited ...
0 votes
2 answers
292 views

How can I get a 2nd IP adress from a DHCP-server

If i use static IP adresses i can use more then one per network card, for exemple i can set eth0 to use 192.168.0.1 and eth0:1 to use 192.168.1.1. And if eth1 get a ip-adress over dhcp, can i somehow ...
0 votes
2 answers
11k views

Hypercom Optimum T4220 POS Credit Card Terminal Fails ISP Test With Successful DHCP lease from a pfsense Netgate Appliance with static IP DSL WAN

This has been an ongoing issue for a couple of weeks. The credit card terminal will lose the ability to connect to the processor server over SSL. The IP config looks correct, the DHCP lease looks ...
0 votes
1 answer
3k views

Fresh CentOs Install - No Network Connectivity (Route Table Empty)

I have just installed a fresh copy of CentOs 6.4 on a dedicated server. I'm new to linux and trying to learn it. The dedicated server has no network connectivity (I can't ping any hostnames or IP ...
10 votes
6 answers
11k views

How reliable are IP address-based firewall restrictions?

On some of my production systems that need to be accessible outside of the LAN I will sometimes add a firewall restriction at the edge to only permit traffic on, say, RDP from a specific origin IP ...
1 vote
0 answers
54 views

Modems unable to acquire dhcp IPs

I work at an ISP where we use routers (7200) for dhcp. I recently reloaded one of our dhcp routers because we had complaints from many users unable to connect and the dhcp database file it was ...
1 vote
1 answer
1k views

Default to IPv6 Linux

I have IPv6 setup on Linux however it is not using IPv6 by default unless I specify it. For example: ssh -v HOSTNAME I see ssh connecting to the IPv4 address. The only way I can get it to use IPv6 ...
-7 votes
1 answer
87 views

How to acquire a unique IP address [closed]

How do I assign a unique IP address for my remote server? I am using windows 7 Operating System. Any other security configurations and recommendations are welcome.
-2 votes
2 answers
218 views

Why APIPA doesn't work with multiple network adapters? [closed]

I connected 3 cameras to 3 network adapters in my PC. I don't have DHCP, so I thought APIPA will do the work. But, camera's installation guide says "If a PC is equipped with multiple network adapters, ...
0 votes
1 answer
73 views

Small remote network fileserver access [closed]

I need to connect 4 separate offices to the same file server remotely. To achieve this the offices will be connected over the internet with BT ADSL using LAN to LAN VPN routers with the following IP ...
2 votes
1 answer
4k views

NGINX One Domain - Several webservers on internal IP

I have a case I am not sure how to manage and would like some advice. Current: One domain-name - one external ip. One already working Debian Server with NGINX for hosting webpages. So, as it is now,...
9 votes
8 answers
28k views

Several IP address within the same subnet on the same host

Is it possible (well the real wording should be "Is it correct") to have several IP adresses that belongs to the same subnet, on the same host ? Here is an example: #Host 1 eth0 -> 10.0.0.1/24 ...
1 vote
1 answer
717 views

Cannot establish IP communication with IBM Server Connectivity Module

I have attached an IBM Server Connectivity Module in Bay2 of our BladeCenter E and tried to setup some networking between an external unmanaged switch and the internal blade servers. I plugged a ...
2 votes
3 answers
369 views

how to configure two ip blocks for use on a network

My ISP has given me a /30 and a /27 ip block I can use. for the sake of not giving out my ips I'll use 192.168.1.192/30 and 192.169.1.224/27. I'm not using a router in my setup, I only have a switch. ...
0 votes
1 answer
456 views

IP address from a MAC address

I'm writing a class to integrate a POS card reader device to our software. In order for it to work I must know what IP it's using. We were given some sample code by the service provider and the way ...
1 vote
0 answers
275 views

Wireless Bridging two Sonicwall Firewalls

We have two sites (essentially two small buildings side by side but we are unable to run CAT5 cable between them) which are currently linked via a wireless bridge. We will be splitting the sites so ...
0 votes
5 answers
469 views

Moved IP addresses to other server, no network internally anymore

I have had this server set-up: serverA ip 200.200.200.100 ip 200.200.200.101 ip 200.200.200.102 ip 200.200.200.103 Due to circumstances, I had to move away ip 200.200.200.102 and 200.200.200.103 ...
1 vote
2 answers
234 views

Forward 192.168.1.x to 95.211.x.x

I want to forward an internal IP address to an external one. So here's what I do: echo 1 > /proc/sys/net/ipv4/ip_forward Then I use iptables: iptables -t nat -A PREROUTING -s 192.168.1.x -j ...
0 votes
1 answer
6k views

OpenVPN server does not assign IP

I have a VPS with these public IP-addresses: xx.xx.xx.192 (This IP-address is assigned to eth0) xx.xx.xx.193 xx.xx.xx.194 xx.xx.xx.195 xx.xx.xx.196 xx.xx.xx.197 xx.xx.xx.198 xx.xx.xx.200 xx.xx.xx.201 ...
1 vote
3 answers
136 views

Possible to set up multiple virtual hosts on IP based server?

I currently have a web development staging environment set up on an IP based apache web server. There is no domain associated with it. So, it can only be accessed by typing in the IP for the URL (xxx....
2 votes
1 answer
638 views

Ping and traceroute can resolve my IP, but real clients (Apache, Adium, ssh) cannot

I have set up my DNS with afraid.org. I have an A record ssh.strugee.net pointing towards 71.32.87.80. I do not have any AAAA records set up. When I run ping ssh.strugee.net or traceroute ssh.strugee....
3 votes
3 answers
1k views

only allow ip from australia

i want to only allow website visitors from australia. has anyone done this before?
1 vote
1 answer
102 views

what is the meaning of rip packet information?

my public IP is 89.75.42.70. Why RIP packet contains such information? I don't understand the IP notation and what it means. IP Address: 89.75.40.0, Metric: 1 Address Family: IP (2) IP ...
1 vote
1 answer
328 views

How to configure network with two routers?

Is it possible to have two routers in the public accessible subnet? ->forward all traffic for [177.x.x.{3,5,7}] Internet --- [177.x.x.1] ----------------------------------...
0 votes
1 answer
481 views

How this aliasing worked

I am trying to do ip aliasing on my ubuntu 12.04 guest and it was not working. host 11.x.11.2 guest 11.x.11.3 guest is using bridge networking with host. on guest specified auto eth0 iface eth0 ...
2 votes
2 answers
9k views

Does IP forwarding on Linux act as a reverse proxy?

I have looked around and have seen many IP forwarding solutions that forward requests from an IP on one server to another IP on another server. (Basically, the forwarding of requests going to 123.45....
-1 votes
1 answer
1k views

How to configure iRedMail with my dynamic Broadband IP? [closed]

I have Broadband connection in my small office with dynamic ip address. I want to be able to configure iRedMail with POP & SMTP. How am I able to configure the POP accounts and SMTP relay.
0 votes
1 answer
97 views

IP setting for client computers accessing internet via a firewall/router

I am a bit of a noob, I have a sbs server and client computers connected to a switch that is then connected to a firewall/router. The sbs server creates private ip address for the client computers, my ...
0 votes
2 answers
199 views

Adding an ipv6 range with dual stack [duplicate]

I have a range of ipv6 addresses available (native) and want to use them. I 've setup the kernel to support ipv6 and installed the necessary tools (iproute2 etc). I am having a problem understanding ...
1 vote
1 answer
2k views

OpenVPN doesn't reserve static IP

I've set up a functioning OpenVPN net (with routing)... everything works but the IP reservation. I've a "special" client certificate associated with a IP reservation on my server. I did all the ...
-4 votes
2 answers
765 views

Static IP Address to Redirect to Azure VIP Address

I am working on an azure hosted multi-tenant web application. Azure will provision a VIP address on initial cloud service deployment. The VIP address will not change for the lifetime of the deployment....
1 vote
3 answers
3k views

How does a remote IP address resolve to localhost?

I just noticed this strange warning in my syslog: postfix/smtpd[26261]: warning: hostname localhost does not resolve to address 113.167.250.138 ...which is then immediately followed by: postfix/...
1 vote
2 answers
3k views

Broadcom Advanced Control Suite 4 on a PowerConnect 2848 making router (ASA5505) throw ARP errors when TEAMING (different MAC addresses from same IP)

For some reason the Broadcom Advanced Control Suite 4 seems to be a little buggy OR I have not configured something correctly. I have 4 Gb NICs and I team 3 of them to make a virtual adaptor... ...
0 votes
1 answer
2k views

Is there some software available to centrally manage APC IP enabled PDUs? [closed]

I am not looking for a recommendation of which one to use, just an answer as the whether anything to do this exists. We have a few dozen AP7921 & similar units that until now we have managed on ...

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