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

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0
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2answers
21 views

Can you access an EC2 server from another AWS account?

If you have an EC2 server with a port open, then other EC2 servers can access it (using private IP). But, what if another AWS account hits that private IP, will they be able to access it?
12
votes
8answers
8k views

What is the network address (x.x.x.0) used for? [duplicate]

It appears to be common practice to not use the first address in a subnet, that is the IP 192.168.0.0/24, or a more exotic example would be 172.20.20.64/29. The ipcalc tool I frequently use follows ...
0
votes
1answer
21 views

Traffic on IP which is not being used?

My server (Debian 7.4, x86_64, Proxmox) has 4 IPs. One for the VM Host (call it A), and three that I use for virtual machines (say B, C and D). Currently, only B and C are used, the D address is not ...
-2
votes
1answer
31 views

Get instance-id of EC2 instance via Java [on hold]

I have an AWS EC2 instance deployed as a server, and I need to find out its public IP. Howver, to know that I must first know the instance-id of my instance. Objective: I have a Java code running ...
1
vote
2answers
71 views

How do I redirect to different backend server based on URL using Apache?

I'm a newbie to Apache, sorry if this is a documented solution somewhere. I have been scouring the web and can't seem to find this answer ... I would like to redirect traffic based on the URL coming ...
0
votes
2answers
198 views

Adobe AIR ServerSocket to remoteIP?

I have a mobile multiplayer game that uses the AIR serverSocket class to connect to an AIR server app on a laptop set up as a wifi hotspot. The requirements have changed and now the server must be ...
7
votes
1answer
599 views

Can a limited broadcast packet contain destination MAC address other than FF:FF:FF:FF:FF:FF?

Can a limited broadcast contain destination MAC address other than FF:FF:FF:FF:FF:FF? If the answer is true, could you provide an example of a protocol that uses a packet like this. Ok, to elaborate ...
1
vote
4answers
5k views

How do I get my server off the ivmSIP/24 blacklist?

I checked my server IP using this tool: http://www.mxtoolbox.com/SuperTool.aspx It's come up on the ivmSIP/24 list. What can I do to get my IP removed from this list? I have SPF records set to ...
0
votes
2answers
72 views

Any gotchas when using the lowest and highest IP addresses in a small block?

OVH offers additional public IPv4s in blocks as small as /30, that is 4 IPs total. As I understand it, strictly speaking two of those are supposed to be unusable. However, OVH allows me to route those ...
-2
votes
0answers
11 views

How can I acces my raspberry pi server from outside my network? [migrated]

I've got a Raspberry Pi set up as a server. I can acces it with 192.168.1.2, because i'm in the same network. Now I would like to be able to acces my Pi from outside my network (eg school). I want to ...
-1
votes
1answer
30 views

Reading tracert output - what does this address mean?

7 7 ms 2 ms 3 ms 83.149.18.148 8 * 78 ms * ae52.edge7.Frankfurt1.Level3.net [195.16.162.53] 9 * * * Request timed out. 10 80 ms 80 ...
50
votes
4answers
49k 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
2answers
623 views

SIP Server with dynamic public IP address and dyndns

Is it possible to run SIP server with dynamic public IP address and dyndns? The question is what happens when IP address is changed and DNS is not yet updated.
1
vote
2answers
52 views

RDP to machine on network with different subnet

Our broadband router has just been changed and our network which was on 172.18.2.xxx is now 192.168.9.xxx. All is fine but I have one box which we used to RDP into and which has no screen mouse or ...
1
vote
3answers
1k views

Powershell Win32_NetworkAdapterConfiguration Not “seeing” PPP Adapter

I am trying to get the IP of a PPP VPN network connection, but Win32_NetworkAdapterConfiguration does not seem to "see" it. If I interrogate all adapters using my script, it will see everything but ...
0
votes
0answers
24 views

IP and Naming Convention for mobile remote sites [closed]

I'm trying to wrap my brain around this. I have 4 remote location that are all identical. They have the same number of servers, IP addresses, run the same websites, software, etc. But every once in ...
0
votes
3answers
766 views

Assigning Multiple IP Addresses to localhost OS X 10.6

I'm attempting to host multiple website locally with HTTPS enabled, but in order to do this I'd need to configure my local machine to use multiple IP address for localhost (I believe). Is there any ...
3
votes
7answers
3k views

Finding ALL currently used IP addresses of Website [closed]

What steps would you take to discover all (or close to all) IP addresses that are currently used by a website? How would you be as exhaustive as possible without calling a website admin and asking ...
-5
votes
0answers
34 views

Why are netmasks assigned by my router more restrictive than the standard for private addresses [closed]

I've recently been doing research into private addresses when I realized that the 192.168.x.y address that basically everybody is familiar with, is really "masked" on the first 16 bits, and yet most ...
1
vote
2answers
35 views

Can't access local web server using remote ip from within LAN

Since I've change my ISP, the current router (ADB P-RG A4202N) won't let me access my web server from within my local network using my remote IP or no-ip host - it redirects me to the router config ...
0
votes
0answers
20 views

Linux Loop two ethernet interfaces

-1 down vote favorite I would like build a topology like this one : [ eth1 <--> eth2 SAME PC] Where two interfaces ping each others without going through the local machine, as they were two ...
-2
votes
1answer
42 views

Is there any affinity between IP subnets and DNS domains? [closed]

I understand what DNS and name servers do. But one question that I have is whether there are any technical, or convention oriented, relationships between DNS domains and IP address space. ...
1
vote
2answers
32 views

Restrict access to service to WiFi users

I would like to restrict access to a cloud service based on the network where the requests are coming from. I have control over both the network, and the cloud service receiving requests from within ...
2
votes
1answer
45 views

Assign different Hostname to different NIC

I have four network card on my server, I have assigned each with an specific IP now I want to set an different hostname for all the interface? What is the difference between setting the hostname in ...
5
votes
4answers
715 views

Openvpn, forward packets very slowly

I rebooted my server, and an odd issue just came out. I am running on ArchLinux, the clients are Ubuntu, Android and Mac. The problem is that accessing the internet via the clients is slow, about ...
1
vote
1answer
19 views

How do I send a different subdomain to a different IP, if two IPs are on the same VPS?

I have a VPS with three IPs. They're all on completely unrelated IPs (one is 23.226.xxx.x, another is 107.161.xx.xx, a third is 167.88.xxx.xx). If I go to beta.mydomain.com (for example, that won't ...
0
votes
0answers
32 views

Tracert of a spoofed IP results in Infinite Loop

Our firewall picked up a spoofed IP address that caught my attention. When I did a tracert to the spoofed IP address I get what I think is an odd response. Tracing route to 192.168.1.7 1 1 ms ...
1
vote
0answers
30 views

How often does the geolocation associated to an ordinary IP address usually change?

Can anyone tell me how often should i expect a routable IP address (either v4 or v6) to have its associated geolocation (country + city level) changed, in average? I'm asking this because i'm ...
1
vote
1answer
57 views

Bridging is breaking the server: KVM configuration

I'm pretty new to networking and just can't get my head around this. I'm trying to setup KVM-Qemu so I can run some virtual machines. The instructions I'm following are telling me to use eth0 and ...
0
votes
1answer
56 views

Show real TCP/IP addresses behind Nginx environment

When i execute the command netstat -atun | awk '{print $5}' | cut -d: -f1 | sed -e '/^$/d' |sort | uniq -c | sort -n I see high number of connection assigned to server ip I want to see the real ...
0
votes
4answers
661 views

Changing IP address to URL in IIS

i need some help in my school project. i need to configuring the IIS system so that user can just type in the URL in their browser rather than type in the ip address of the computer to access the data ...
1
vote
0answers
56 views

Proper way of setting gateway outside of subnet on FreeBSD?

I have a VPS running FreeBSD 10 and it is located in OVH's BHS datacenter. The gateway for my VPS is not in the same subnet as my IP address and when I went to set the gateway the usually way, it ...
0
votes
3answers
801 views

Ubuntu second static IP, ifconfig, /etc/network/interfaces

I would like to add a second static IP to my local Ubuntu 11.10 desktop machine and have it automatically available after rebooting. So far I am successfully using ifconfig to to temporarily set up an ...
1
vote
1answer
149 views

One IP for whole LAN, provide access to local server outside the LAN [closed]

I have a LAN with multiple PCs and some servers. I would like to provide access to one of the servers from outside the LAN. The problem for me is I have one IP address for the whole LAN. The server is ...
0
votes
0answers
23 views

Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
1
vote
3answers
955 views

Redirect based on location, countries and languages: is there a good answer?

I've got a site that needs to have at least two almost identical versions for two different countries/languages, and visitors should access one or the other depending on their location, country or ...
0
votes
2answers
1k views

SBS 2008 DNS issues in BPA

I'm gettng constant Critical Issue events in the Small Business Server Best Practices Analyser & resulting SBS Console reports that begin "The DNS client is not configured to point only to the ...
0
votes
1answer
35 views

How can i get ip address of client connected to remote desktop

I have this environment: I have one windows server with many client that will connect to it in remote desktop. For each client it creates a new session asa it connect to rdesktiop. What i need is ...
1
vote
1answer
2k views

haproxy with multiple IP in one server

I use haproxy to loadbalancer multiple virtual machines (web services). Each virtual machine has multiple IP addresses. What is best practice to setup this on haproxy? Right now my configuration are ...
1
vote
1answer
2k views

Centos/OVH: public IP on KVM virtual machine

Since a few days, I'm trying to configure my KVM vm to have a public IP address, without any success. First, I'm on OVH, and you need to know they don't allow networking from different mac addresses. ...
-4
votes
2answers
104 views

Exercise regarding public IP address and its “class C” [closed]

An exercise I am doing asks the following:- Identify what your public IP address is. Using public information sources, see what you can learn about your IP. If you don'ʹt find anything on your ...
0
votes
0answers
33 views

Edge firewall on Ubuntu, dynamic IP address, static DNS

We're setting up a software firewall, and one of the issues we're facing is that eth0 has a dynamic IP address. In /etc/network/interfaces we've got the following: # The loopback network interface ...
1
vote
3answers
66 views

drop ips with iptables from awk result [closed]

I have a log file like this : Frq:15 IP:0.0.0.0 Date: 2014-03-21 12:19:31 AM Frq:9 IP:198.252.206.25 Date: 2014-03-21 12:19:31 AM Now i get column of ip addresses with awk : cat /tmp/test | awk ...
-2
votes
1answer
31 views

SOHO Routers and Non-Standard CIDR Blocks [closed]

I recently learned about private networks. From what I understand there are three address ranges for use in private networks: 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16 If this is the case, then why ...
0
votes
3answers
68 views

Wrong IP address has been set to ESX server

I have an ESX server without direct console access (disabled). The server has wrong ip address (broadcast ip address) and I have no way to connect to it. How can I change this IP address or connect ...
1
vote
1answer
112 views

How to configure Zenoss to list devices by name instead IP address automatically?

I've set Zenoss 4.2.3 to get devices from our entire network from all subnets (INFRASTRUCTURE -> DEVICES). But it returns me the device list only with the IP address, it doesn't obtain the hostnames ...
0
votes
3answers
68 views

Would blocking an entire ip range of a country potentially hinder performance?

We've discovered a lot of brute-force attack attempts on our server originating from a particular country. We plan to block all incoming traffic from that country, but it is quite a list. To be safe, ...
0
votes
1answer
78 views

Create a trigger when a mobile connects at network [closed]

I'm a complete dummie on Network subjects. I'm trying to create a log, when a specific iPhone/Cellphone connects into a wireless network. The main goal is pull a trigger (create a log file, send a ...
0
votes
1answer
32 views

How to access a domain or its subdomain from the Local Area Network in Nginx?

I've got a local server configured with Nginx, PHP5-FPM, MySQL and some other stuff. I'm hosting two sites. One static website using Twitter Bootstrap and a theme: at www.example.com One WordPress ...
0
votes
0answers
41 views

Debian on VM has web access but can't be pinged

I have just installed Debian on a Virtual Machine. I have internet access on the VM and installed SSH. I then did a ifconfig and discovered that the IP address is 10.0.2.15 which is strange as the ...