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

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-7
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2answers
133 views

Can I avoid operating DNS on a domain by using only a glue record? [closed]

I was thinking that I might be able to get away with simplifying DNS by foregoing the usual delegation setup and not operating DNS for my domain, instead relying only on the glue records in the TLD ...
0
votes
2answers
55 views

Temporarily Redirect domain to another server

I have a domain pointing to an Apache2 server (Call it Server 1). I would like to be able to quickly point that domain to another server of a different IP number (Call it server 2) by adjusting ...
-1
votes
2answers
46 views

Configuring several subnets on a single IP [closed]

Is it possible (and correct) to configure one single IP with several subnets? For example: ip subnet 172.30.176.17 172.30.176.0/23 172.30.176.17 172.30.176.0/24 Is this a valid ...
0
votes
1answer
32 views

Forwarding local network interface on my server through NAT

I have 3 interfaces on my server, first is used for the local network, second and third are internet connections (each has its own ip routing table). How can i force server daemons and command ...
0
votes
0answers
23 views

RDP Connection over local Lan between 2 servers (2nd server external Network adapter turned off)

I have 2 servers located at a datacentre, which we connect to via RDP to manage. They both have 2x network adapters in which are links to the outside world and the internal network they reside on. ...
0
votes
1answer
48 views

Class C Addressing [duplicate]

I recently saw someone use '200.1.2.0/18.' This doesn't make any sense to me. This is a Class C address with a subnet mask of /18. I thought the subnet mask for a Class C had to be at least /24. How ...
0
votes
2answers
497 views

What are the differences between Floating IPs and Virtual IPs?

This might be a pedestrian question but what is the difference between a "Floating IP" address and a "Virtual IP" address? Are they synonyms?
0
votes
2answers
207 views

Excessive ARP request with no reply

I had been monitoring our LAN setting due to slow bandwidth. In the wireshark, I am seeing an ARP request that is never resolve to a MAC address from the same IP address. I did a NMAP scan, the ...
-1
votes
2answers
113 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
2answers
283 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 ...
2
votes
2answers
176 views

Multiple IP Brute Force Login Attack CentOS 6

Currently, one of my websites is being subject to a brute force login attempt. The problem is that it is coming form multiple IP sources. I have a system that auto bans IP after 3 attempts and so ...
1
vote
2answers
67 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
1answer
63 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 ...
0
votes
2answers
344 views

Adding a static route to a virtual interface using configuration files rather than ip command

We statically assign our routes using the /etc/sysconfig/network-scripts/route-ethx files. This makes managing them fairly easy since we add the routes during the kickstart process (by way of ...
1
vote
1answer
67 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. ...
1
vote
1answer
113 views

How to bind sendmail outgoing mail to a specific local IP or or used domain IP

I dont know hos to setup Sendmail for outgoing mail use a specific local IP or or used domain IP. Ex : 4 Ips : 192.168.1.100 (default) bind to host.domain0.com 192.168.1.101 bind to ...
0
votes
1answer
101 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 ...
0
votes
1answer
137 views

Hosting multiple socks proxies on a single server

I have multiple public IP addresses assigned to a single NIC in a Windows Server 2012. I want to be able to use each IP as a socks proxy server which has to be accessible from other Internet users. ...
-1
votes
1answer
36 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
1answer
85 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
1answer
160 views

Cannot ping gateway

I replaced my aging fileserver with a new server running ESXi 5.1 and migrated my fileserver in a virtual machine running on it. Now I have the following problem with this VM: I'm getting the ...
0
votes
2answers
201 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
2answers
122 views

server sending hpoms-dps-lstn packets to unknown IP

I have a server running pacemaker with corosync and some standard services as mails, web, ssh... When I run wireshard in my network I keep getting those packets that my server is sending to the IP ...
1
vote
1answer
670 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
1answer
101 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
3answers
194 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. ...
0
votes
2answers
399 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 ...
0
votes
2answers
24 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 ...
0
votes
2answers
82 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
1answer
155 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 ...
1
vote
0answers
35 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 ...
0
votes
0answers
191 views

What does given filed mean in netstat -s on Linux

I am analyzing the the output of netstat -s and wanted to know what "input ICMP message failed" is meant for ,below is output of netstat -s Icmp: 643 ICMP messages received 0 input ICMP ...
-7
votes
1answer
46 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.
0
votes
0answers
110 views

IIS 7.5 multiple bindings how to use IP restriction for just one host name / IP address?

IIS 7.5, there is one site with two bindings, one for domainA and one for domainB, each with its own IP address, each IP address has its own network card. It's a functional requirement that both ...
-2
votes
2answers
70 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, ...
1
vote
1answer
237 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 ...
0
votes
1answer
92 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 ...
1
vote
1answer
252 views

How to enable IPv6 Autoconfiguration with static address in Linux (RHEL)

I have a static IPv6 address I would like to assign. When I add the address to the /etc/sysconfig/network-scripts/ifcfg-eth0 file and restart networking I realize I get several IPv6 addresses. The ...
1
vote
0answers
33 views

Correct name for the two reserved addresses in every subnet? [duplicate]

In the subnet 192.168.0.0/24, the IP addresses 192.168.0.0 and 192.168.0.255 are both unusable in the traditional sense, but all addresses in between are usable as expected. I understand that ...
0
votes
0answers
41 views

Micro instance Windows Public IP [duplicate]

I'm new on this stuff and probably this questiuon is very basic for you but I cannot find a clear answer for it. I want to create a normal/basic instance that will run only in the working time, that ...
1
vote
1answer
121 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
3answers
141 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
3answers
152 views

Squid: restrict proxy_auth (userid) only from selectec sources (src ip)

I need a way to restrict userid (proxy_auth) only from authentic user pc (src ip). Because: a userX take lent a userid (login) from another user (boss user) and can access all sites without ...
0
votes
1answer
121 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
0answers
64 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
1answer
241 views

Allow visits only via domain, block by ip address

I am trying to block people from accessing my server via my ip address. Ideally I would like them to only be able to access it using my domain name. I have searched Google and unable to find ...
1
vote
2answers
72 views

Access switch management on network without dhcp

Could not find default IP of cisco router which was static. Issue is now solved see answer below :)
0
votes
1answer
403 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
3answers
70 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 ...
1
vote
2answers
87 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 ...