Tagged Questions

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

learn more… | top users | synonyms

1
vote
0answers
77 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
107 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
141 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 ...
1
vote
1answer
183 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
26 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 ...
0
votes
1answer
448 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 ...
0
votes
0answers
84 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
140 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
45 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
295 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 ...
0
votes
3answers
132 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
104 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
256 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
96 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 ...
-2
votes
4answers
93 views

Find out IP of connected interface?

Suppose I connect two machines directly together with an ethernet cable. I know nothing about machine2's configuration - I only have access to machine1. What can I do on machine1 to determine ...
0
votes
0answers
63 views

getaddrinfo (ping) is showing out of date IP Solaris 10

We recently moved a Solaris 10 machine to a new IP. We made changes to ifconfig, /etc/hostname.*, /etc/hosts, /etc/inet/hosts, /etc/netmasks, /etc/defaultrouter, and DNS. We did not reboot. We tested ...
0
votes
2answers
151 views

Configuring two IPs for one server?

I have a windows server that is running two ASP.NET websites. I would like to setup an HTTPS connection for each site. I had initially run into problems because I was trying to use a single IP ...
-2
votes
1answer
52 views

why return different sequence of ip addresses? [closed]

When I used nslookup to query google.com twice, I got same ip addresses but different order, why? These are return: Server: 129.173.1.100 Address: 129.173.1.100#53 Non-authoritative ...
4
votes
3answers
494 views

In Active Directory, what is the relation between IP, MAC, and OS?

I have one machine on which I want to run 2 different OSs, dual boot between Windows Server 2008R2 and 2012R2 (or others). I want to keep the same computer name, the same IP address, and the same MAC ...
1
vote
2answers
437 views

Arbitrary loopback ip addresses besides 127.0.0.1

I am developing a web app that has to produce different output based on ip. For testing and during development it would help a lot if I could have more loopback ip addresses besides 127.0.0.1. Is ...
0
votes
3answers
103 views

Should I get extra IPs?

This is my proposed setup using OpenVZ containers (hosted on Proxmox): CT 1: MySQL and nginx. Hosts all databases and multiple websites(domains). Used ports are 80, 443, 3306, 8080 CT 2, 3, 4: These ...
1
vote
0answers
151 views

Virtual Machine IP address type changed from static to dynamic

I am testing VMM in a lab environment, I have one VM host machine with one physical network adapter that has been allocated an IP address in the 192.168.1.0/24 subnet on a router. I have create ...
0
votes
6answers
2k views

Use the LAN based IP address to access local Apache on laptop when working outside the network?

<VirtualHost *:80> DocumentRoot "D:/Projects" ServerName 192.168.11.74 </VirtualHost> Why doesn't this work ? How to access websites on the local box (Windows, Apache, MySql, PHP) ...
-2
votes
1answer
89 views

Which cloud providers which let you spoof an outgoing IP address, and how? [closed]

I have a web application which is load-balanced using LVS which has been hosted within my organization's network to this point. We've used both direct and tunnel routing within LVS, which results in ...
0
votes
0answers
350 views

How change Broadcast ip address manually (CentOS Machine)

i figured out subnet mask & broadcast ip addresses of eth0 device in my CentOS machine are different from datacenter email. datacenter email was like below : Free IP: ...
-3
votes
1answer
77 views

Bandwidth requirement to live broadcast an event on the internet [closed]

I am assigned on project to live broadcast an event on the internet which may have 50,000 user s. This will be a broadcast so all users will see same live video. My query is what would be my bandwidth ...
0
votes
0answers
102 views

how change the output IP of every PROXY to it's own IP in CentOS (SQUID- Multiple IP)?

i configured a proxy server in CentOS server using with squid i have multiple ips like these : 192.233.76.1 ~ 100 i've added those ips to my one interface. so every HTTPS proxy works well -> ip ...
0
votes
1answer
231 views

vmware vsphere clone vm

this is my first time cloning a vm ubuntu 12.04 production server on a mvware esx enviroment. Thus I´m a bit scared of lose sight of something. The Server is nothing more than a webserver apache + ...
0
votes
0answers
237 views

ModSecurity on Apache (Debian Wheezy), real-time IP-Blacklist from file

I am creating and updating an ip-blacklist dynamically with a php script based on specific bot behaviors or actions. The functions I use in the script add or remove ips, based on ban-duration set for ...
0
votes
1answer
87 views

Don't show IIS default page if ip address is visited

A pci company has pointed out that the IP addresses on our server should not be accessible - the sites should just be accessible via the domain name. Currently if you visit one of the IP addresses it ...
2
votes
2answers
58 views

Can I restrict access to an apache website to a client whose IP address is on an ISP who allocates IP addresses via DHCP?

I have a website which I want to use for administrative purposes. I need to be sure that only people from certain machines can log on. the problem is they are on ISP networks. Will I truely get the ...
1
vote
0answers
118 views

What could be the cause for outbound TCP/IP traffic beeing blocked while ICMP is still working?

On a Windows Server 2003 there is a strange issue. Every 6 hours the server don't accept outbound TCP/IP traffic while inbound traffic working fine. If the problem occurs I can connect with RDP to ...
1
vote
2answers
87 views

RTP Stream is Visible from Internal IP but not from Public IP

I'm trying to stream an RTP stream to a port on an external ip. When I attempt to load the stream using the internal ip on the pc itself, everything works. When instead I try to stream using the ...
0
votes
1answer
93 views

What happens when I run dev server on 0.0.0.0? [closed]

When working on web-apps I'll usually run a development server on my local machine at localhost / 127.0.0.1, and if I need to show a colleague something I will check my ip address with shell command ...
1
vote
1answer
108 views

How many IP addresses can I expect to block on a Cisco 5500-X Series firewall?

Considering a Cisco ASA (5500-X) firewall for our internet edge in front of our web cluster. At the moment, we use a Linux box with iptables. A log analysis system detects brute-force attacks on ...
3
votes
1answer
98 views

Error with a vpn client (PPTP protocole) over ssh

I have some errors when I use PPTP over ssh : sudo ssh -L 1723:127.0.0.1:1723 vpn-server@$192.168.1.1 192.168.1.1 is the vpn server ip. When I start pppd (client) whith the following command : ...
0
votes
1answer
82 views

How should I search for IP conflicts in static networks?

We have two physically separate static networks with the same subnet, containing a total of some ~100 windows computers (servers and workstations) that we want to merge. If configuration is done ...
1
vote
1answer
15 views

Serverlocked Ip because of passing special characters to database

Hi My server blocked my ip and sent me the reason below, Kindly check the logs and above path with your developer and take necessary action to avoid this in future. Logs: ------ [Tue Jan ...
1
vote
1answer
686 views

Shouldn't we exclude a static IP from the DHCP pool?

In my office, I have a printer with static IP 192.168.0.254/24. Normally, it should be excluded from the DHCP pool in the router. So I just set the DHCP pool to be in the range of 192.168.0.2/24 - ...
1
vote
1answer
56 views

Redirect from Old Site to New Site on different folder

I want to redirect all request from a url host www.hostname1.com (including all subdirectores-www.hostname1.com/....) to a different url with a different host, www.newHost.com. I have already made the ...
-3
votes
2answers
521 views

Exchange 2010 outgoing public IP address

I am planning to publish my exchange server what i want is to use a: 1- dedicated ip for sending mails 2- dedicated ip for receiving mails (different than the send IP ) these two ip addresses ...
-1
votes
2answers
57 views

Change IP Address of a CentOS System [closed]

I have a unmanaged Dedicated CentOS Server running and I've been trying to get a new IP Address for it. My hosting provider allowed me to buy a new IP Address but it's up to me to actually change it ...
0
votes
2answers
360 views

what will be the primary IP address of my system if i have two NIC can i change it?

I have two NIC configured on VM's one IP is assign by DHCP on 172.26.43.XX VLAN and 10.10.10.XX is static ip I am installing cloudera beta 5 on these VM, while detecting the host cloudera is ...
1
vote
2answers
97 views

Router see IP alias? [closed]

On my Win7 host machine, I have two VMs which I test network/server stuff. On one machine I created an IP alias using the following commands from ...
-1
votes
2answers
66 views

Is recipient's MAC address necessary for TCP connections across the internet? [closed]

I want to estabilish TCP connection over the internet between 2 computers which are in different local networks (the local networks use wifi). I have looked for description of TCP protocol, ...
2
votes
2answers
51 views

Are only IP-Addresses Blacklisted or also Domains?

Unfortunately one of the forms of my website was used to send completely sensless spammails. As I found out through "http://mxtoolbox.com" that my IP-address is listed on two blacklists, I want to set ...
-1
votes
1answer
49 views

How can I ensure HTTP requests from many servers goes through one IP address? (i.e. client-side load balancing)

We have many machines that for security reasons need to communicate through a somewhat static set of IP addresses. ("Somewhat" meaning, manual maintenance once in a while is okay, but new IPs cannot ...
-2
votes
1answer
53 views

How do I ensure a REST API does not have a bottleneck when it receives requests? [closed]

I'm creating a REST API that will listen on a public URL and accept uploads of large amounts of data. I understand how to scale software processes using message queues, but what I don't understand is ...
0
votes
3answers
84 views

How many packets will it take to send particular data?

If I know the maximum packet size is 1500 bytes say for Ethernet frame v2 then for example I want to transfer 1 KB over the Internet which is roughly 1024 bytes. Will the packet be split into many ...
0
votes
0answers
71 views

Can a source send two fragmented IP packets at the same time?

I'm developing an app that does NAT between a virtual TAP interface and a physical interface, and I'm not sure how much buffer should I allocate for IP fragmentation. According to Wikipedia the ...