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

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3answers
189 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 ...
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1answer
54 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 ...
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3answers
597 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
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3answers
182 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
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1answer
127 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
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1answer
375 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
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0answers
145 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 ...
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4answers
104 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 ...
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2answers
156 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 ...
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1answer
62 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
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3answers
548 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
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2answers
896 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
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3answers
120 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
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0answers
241 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 ...
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6answers
4k 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) ...
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1answer
121 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 ...
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votes
1answer
99 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
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0answers
136 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
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1answer
338 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
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1answer
210 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
72 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
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0answers
149 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
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2answers
115 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
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1answer
130 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
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1answer
140 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
187 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
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1answer
171 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
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1answer
2k 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
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1answer
65 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 ...
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votes
2answers
851 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 ...
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2answers
64 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
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2answers
701 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
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2answers
154 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 ...
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2answers
84 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
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2answers
52 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 ...
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1answer
58 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 ...
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votes
1answer
62 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
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3answers
107 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
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0answers
88 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 ...
0
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2answers
2k views

how to unblock my https website when its blocked by a specific country?

I have a website, more like a webservice that serve some applications, my service has been blocked in a specific country, only the https version is blocked. i need to keep using the ssl certificate ...
1
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1answer
60 views

DNS propagation: A record and IP change on domain panel and VPS?

I'm moving my website from a VPS to a dedicated server. In my Domain administrative panel there is a DNS zone where i've changed the A record from the previous IP address to the dedicated server's ...
0
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2answers
66 views

Domain/IP mapping behind router

I have a small office in a larger office building. We use a "shared" internet connection maintained by the building, behind several layers of LAN infrastructure that we do not control. I want to ...
0
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2answers
57 views

How do proxy servers change their IPs? [closed]

A lot of proxy servers say that they change their outgoing IP addresses every X hours (many seem to do it twice daily). How they do this? Is it something that a hosting company would do, or an ISP?
1
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1answer
46 views

How to point a domain to a dedicated ip

In my domain account while trying to update the nameservers , they are asking for hostname and ip. I have ip alone , how to create a host name. I am using windows server 2003 .
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0answers
40 views

Binding of IPs not working

I have two IP address ranges in my server. CentOS 6.2 The first one, is ok and working Then second range is suposed to be binded to eth0, using the cloning resource available in RedHat systems. My ...
3
votes
1answer
81 views

MPLS: choice of initial label for an incoming packet

At the entry of a MPLS tunnel, which packet fields are used to determine the label of an incoming packet? Here it says that there are other attributes that are taken into account besides the IP ...
1
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2answers
292 views

What is the KRYPTOLAN protocol?

I've searched for a while and can't seem to find any information on what KRYPTOLAN is. For the transport layer, IP protocol number 0x41 is assigned. In addition, ports 398/udp and 398/tcp are also ...
0
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1answer
66 views

Assign a public IP address to new Amazon Instance

My Amazon Instance got terminated accidentaly. This Instance was having an IP address associated with itself so that it can be accessed from internet. Now I have created another Instance from the ...
0
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1answer
303 views

tried to spam postfix, doesn't log IP address

I've had some serious spam issues with my local postfix installation, until I found out that there was a postfix user wich was allowed to relay mails (I still don't know why this was possible in the ...
1
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1answer
126 views

2 servers with 2 ip adresses cant ping each other

I rent 2 root servers from my provider that run Ubuntu 12.04.01 LTS. I ordered a second ip for each of them and configure them in /etc/network/interfaces as follows: iface eth0:1 inet static ...