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

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MIKROTIK - Two LANs connected with switch

I have a very simple network. I have two LAN networks (192.168.2.0/24 and 192.168.3.0/24) connected via a router at each site and the routers are connected via a switch. ...
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13 views

Can't access from outside process running in a Docker container

I'm trying to run a gameserver inside a docker container on my server but I'm having troubles connecting to it. I created my container and started my gameserver (which is using port 7777) inside it. ...
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1answer
6 views

When is domain resolved for openvpn server?

In my setup I have several OpenVPN clients pointing to a vpn server's dns name. let's use vpn1.mydomain.com as an example. The server's public IP pointed to by that domain would be for example ...
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1answer
27 views

reserving private ip range

OpenVPN normally uses the private IP range of 10.8.0.0/24. If I wanted to create a vpc of 10.8.0.0/16, How can I prevent the DNS (or is it the DHCP) server for assigning addresses out of OenVPN's ...
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3answers
49 views

Use two or more IP addresses to prevent DoS attacks [duplicate]

N00b question But say I had a dedicated server with two IP addresses, and the software (We'll just use Apache as an example) was using both IP address to serve content, in the event of a DoS attack ...
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24 views

Change ip address while surf web pages

I am looking for command line browser like lynx but with --bind-address command line argument, like wget does. so i can browse the webpage with one of my ip address in server
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1answer
50 views

What is this IP address format? [closed]

Has anyone ever seen an IP address like this? "2601:304:cd90:78f0:ccec:2be6:b328:7f5d" I asked a coworker to give me his IP so I can add it to the firewall rules, but I've never seen anything like ...
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13 views

Browser shows IP and port in the url bar for sub-domain

We have a sub domain name like support.mycompany.com. When we write this in browser, it works as expected but the sub-domain changes to IP and port in the url bar. Why is this happening ? What should ...
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17 views

What is this configuration in /etc/network/interface means? [closed]

What is this configuration means? auto INTERFACE_NAME iface INTERFACE_NAME inet manual up ip link set dev $IFACE up down ip link set dev $IFACE down Thanks alot.
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14 views

GRE Tunnel to Add IPs

Okay, here's the situation: server1 - my "main server" server2 - think of it like a proxy IP1 - main IP of server1 IP2 - main IP of server2 IP3 - additional IP of server2 I have, for years and ...
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1answer
23 views

Does ColdFusion use TCP Ports?

I am trying to access a link on our network. Whenever I try, the page times out. I have discovered that this link is a Adobe ColdFusion web page. Does ColdFusion use a TCP port other than port 80? I ...
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1answer
36 views

What does 192.168.1.1 /4 mean? [duplicate]

What does 192.168.1.1 /4 mean? Is there a calculator that translates this kind of notation to a list of IP addresses? For that matter any type of notation so that it would be easy and quick in the ...
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26 views

Linux traffic shaping for multiple clients with tc

I need to divide bandwidth between several clients connected through IPSEC. I found this article: ...
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0answers
15 views

Vyatta or VyOS can support odd or even IP source routing or not

I tried to configure the even/odd policy for IP source routing in Vyattta/VyOS, but I get the below error message: Configuration error: "0.0.0.1/255.255.255.254" is not a valid IPv4 subnet ...
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1answer
31 views

IP forwarding server (or other solution)

We have physical server based in Hungary that are serving our Hungarian version of a site. For any other website we launch in different countries, We buy hosting in that country and launch another ...
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0answers
16 views

CentOS Server can't exit pfSense Network

Not sure if this is a routing issue or a firewall issue, or maybe a problem with the ifcfg-file of the CentOS machine. Here is the situation. I just got a 600Mb fiber connection from my ISP into the ...
2
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0answers
41 views

some IPs within a subnet not reachable

I'm running 3 Debian-Servers, each with its own IPMI. All IPs are within the same subnet with the same gateway. The problem is, that each server can ping its own IPMI but not the IPMI of the other 2 ...
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2answers
1k views

American Users have wrong IP address geolocation

In order to display the right content for my users I get their country based on their IP address. I have been receiving several reports from American users saying that the content is being displayed ...
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3answers
489 views

Do I need a dedicated IP address for each SSL certificate?

I am hosting multiple domains on a single AWS instance. The domains all share the same underlying codebase, but we provide "white label" services on various domains. Each of the domains (foo.com, ...
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0answers
11 views

IP forwarding issue in SLES12

I'm triying to configure iptables in SLES12 in order to route packages between two machines. This is the scenario. I want to connect from A to C using iptables and ip forwarding on machine B ...
2
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1answer
38 views

Returning client IP with BIND [closed]

I'm currently looking into ways to implement something like myip.opendns.com with BIND for myself. Basically I want to return the client's IP using DNS. For the service mentioned above this looks ...
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0answers
42 views

website does not open because of dns not location ip

I currently own a dedicated server at Hetzner and they have given me one shared IPv4 and a dedicated /64 subnet IPv6. I also have a domain at Godaddy. In my server is installed Plesk control panel, ...
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1answer
36 views

Can't access to a port (which is running Spring boot jar) via it's public ip

I have deployed my spring boot app jar to centos server with this command: nohup java -jar black-0.0.1-SNAPSHOT.jar > log_black.out & In my application.properties I set the server port ...
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32 views

Using VPN inside and outside of LAN (2 IP adresses)?

I have just setup a small VPN server racoon/strongswan/etc. (192.168.0.100) in my home LAN (192.168.0.0/24). The LAN consists of a single TP-Link router (192.168.0.1) and various clients ...
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2answers
32 views

How to retrieve previous IP/DNS information from Domain Controller logs?

I unfortunately have DNS scavenging on; information I need to retrieve could have been in Event Viewer DNS logs, but that's not there anymore, or maybe I am not looking for it properly. Story: I ...
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what the best approach to get the network values on Linux machines [duplicate]

what the major difference between ip addr command to ifconfig -a command? both command are give the same values network IP's ip addr 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc ...
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1answer
18 views

Hyper V and NAT Redirect IP on different VM

I have 2 IPs public (but one physical network port) and i want redirect IP public 1 on my VM 1 and, IP public 2 on my VM 2 But when i check my NAT configuration i can just redirect port on my interne ...
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1answer
29 views

Does switching routers when using same IP cause temp downtime?

Still learning networking but from my understanding MAC Addresses are what route network traffic so if I switch out a router but configure them with the same IP does it take time for the new MAC ...
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1answer
27 views

Increasing Network IP range/scope

We have windows 2012 AD environment with IIS & MS SQL running on it. Our current IP range is from 192.168.100.* with subnet mask 255.255.255.0. We are getting very close to .254 IP (Only 10-15 ...
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1answer
16 views

Is it possible for networks to be assigned the same external ip [closed]

Is it possible for networks to be assigned the same external ip, not necessarily simultaneously, for example being assigned another users old external ip address? I am a programming student but my ...
0
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1answer
25 views

Egress Interface Routing - Potential Solution?

We have an ISP (ISP1), with a router maintained by the ISP. We are bringing up a 2nd ISP (ISP2), with routers we will deploy and maintain. We'd like to gradually migrate services from ISP1 to ISP2, ...
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1answer
37 views

127/8 address is not passed to IP stack?

I send IP/UDP frames using raw sockets with destination IP address from 127/8 range - e.g. 127.0.0.6. So, packets are sent over the network OK (checked using tcpdump on the target device). But on ...
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1answer
27 views

Multiple Physical (and Virtual) servers (mail, web, etc.) on single link. Can I use DDNS to use top level domains to each box? [closed]

This all started last year when I switched to a LISP based solution for my old "C" address block without the expense of T1 lines. I have a cable link and a dsl link into my Cisco 2800 that then ...
0
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1answer
17 views

Multiple domains under one IP but direct IP entry shows apache page

I'm hosting around 15 domains under a single IP and everything works fine but when I visit the IP (http://IPaddyHERE) it shows me the apache page. How can I either redirect it to one of my domains or ...
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2answers
16 views

How can I audit Ip adresses of users logging into system?

I have a group of servers which use Kerberos for authentication. We distribute keytabs to users but want to ensure that a user never pass their keytab to someone else. Essentially we need to audit the ...
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1answer
42 views

Dividing IP range among subnets [closed]

A company has been allocated all the IP addresses in the range 134.7.1.XXX, and needs to create three (3) subnets. The first subnet needs to be twice the size of the other 2 Is the answer simply: ...
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2answers
29 views

AWS create an alias for my EC2 instance IP

I'm not expert in anything related with networks. I've reasearched through Internet but I'm not able to get with the solution for what I need. It's simple. I've bought a domain in GoDaddy.com and ...
0
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1answer
22 views

How to get list of domains pointed in unique IP

I want to know this is possible that i can get whole domains list which is pointed in unique (same) ip address example: i have ip 000.000.00.00 now i want to get whole ip list which is pointed in ...
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1answer
38 views

Forwarding all traffic coming into eth0 on host to eth1 on LXC container

I'm trying to monitor all the traffic coming into my computer using software running in an LXC container. The software on the LXC expects to be monitoring eth1. Thus, I would like to Create an ...
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0answers
71 views

Can not ssh to openstack instance using floating Ip address?

I've setup openstack using http://docs.openstack.org/developer/devstack/guides/single-machine.html machine has single Ethernet Port Eth0 With ip address 192.168.1.22 and i've created instance which ...
0
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1answer
12 views

ip range whitelist error

I need to whitelist an ip range for our load testing with Loadimpact. They have given us an ip list with ranges listed as: 54.80.0.0/13 (54.80.0.0 – 54.87.255.255) ...
2
votes
2answers
78 views

How to get public IPs on ESXi VMs?

We have a dedicated server with a hosting provider. We are running ESXi 6.0. The server has a single public IP which is currently being used for the management interface. The provider has also ...
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2answers
46 views

Transparent switch from Wifi to ethernet

I have the following network setup: Zyxel USG 200 Firewall which also acts as DHCP server 2 Switches 2 Wifi APs (Zyxel NWA3560-N and WAC6503D-S) with NAT and DHCP disabled The clients (mostly ...
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1answer
23 views

ufw status (what does the v6 stand for?)

My ufw status output looks like this: To Action From -- ------ ---- 22 ALLOW Anywhere 80/tcp ...
0
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1answer
34 views

change destination of IP in windows

I have a windows machine (A) which uses a software to contact another machine (B) via it's IP, 111.111.111.111. That IP address is hardcoded inside the software and the problem is that it soon going ...
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2answers
101 views

How to configure Apache web server to redirect the requests it receives without modifying the source IP?

Unfortunately I don't know about web servers but I'm trying to help a colleague. We have an Apache web server setup and we need it to redirect resend the requests it gets to an application server ...
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1answer
23 views

Windows 2012:IIS 8: Restrict Virtual Directory to Local IPs

The server is a Windows 2012 server. In its IIS 8, there is a virtual directory, say 'arcgis'. I want to restrict access to that specific directory only to local computers. The local IPV4 addresses ...
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1answer
33 views

SSH via Any IP for Specific Username?

I often SSH into a server from home or from work—but when I'm other places, I get this error: ssh_exchange_identification: read: Connection reset by peer After reading around a bit, I've come to ...
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1answer
29 views

Moved to different country but want to keep a London IP [closed]

I temporarily moved from London to Milan. Despite keeping Google Uk as preferred search engine; Because of the location; I get more feeds, ads, reviews, and events from the area of Milan. What's the ...
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0answers
69 views

IP ping internally but not externally

Yesterday, my DEBIAN server went down and I have to reboot. After that, several web sites did not go up and I found that 2 IP above 3 do not ping. The main IP still works and attached web sites work. ...