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

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AWS Multiple Elastic IPs to one instance

I need some guide to lead me to setup multiple (6) ips for 6 websites (1 ip - 1 website) on one instance. or what to look for I have found this http://www.ec2instances.info/ If it is true I need t2 ...
5
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2answers
2k views

“cat /proc/net/dev” and “ip -s link” show different statistics. Which one is lying?

I notice that /proc/net/dev says eth3 has 1753 drops. ip -s link shows 0 dropped. Why is there a difference? Where is the different data coming from? Which one is correct? I've stripped the out extra ...
-3
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0answers
22 views

Choose hosting (separate IP for each website) [LAMP] [on hold]

Sry guys for asking maybe dumb questions. I'm just new to all the hosting stuff. I need you to direct me in right direction. What I need is a web hosting which has separate IPs/servers for each ...
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3answers
54 views

How do ISPs handle Customer IPs blocked by WebHost

At my ISP, we issue static IP addresses to customers. A lot of times, we get complaints from our users unable to access their websites or emails from their IPs (but same sites and mails are accessible ...
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1answer
25 views

Postfix configure a gateway to outbound emails

I have a server configured with Postfix in my business office. I have another server at a hosting provider that I want to send all my outbound mail through. How can I do this. The only way I know its ...
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0answers
8 views

Alfresco, access the server from local network [on hold]

I'm trying to work Alfresco. It was installed on the local server. Tomcat is a webserver that is used by Alfresco to provide an access to the web-panel. Default ip is: 127.0.0.1:8080; And now I want ...
0
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0answers
12 views

opensm infiniband route table

I have two centos 6.6 vmware vms. VMware is told to do a bridged network and to replicate physical network. eth2 is dhcp managed by NetworkManager. I am able to get to the point where I can assign ips ...
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0answers
17 views

Support for UDP-Lite

In order to be effective, UDP-Lite requires the link layer to disable its frame CRC check for frames carrying UDP-Lite packets. Are there any deployed link layers (Wifi?) that implement this explicit ...
2
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2answers
70 views

Windows firewall, netsh, block all ips from a text file

am using the following scrip to block ip's from a text file into the windows firewall. I'm using windows 2008 R2 @echo off if "%1"=="list" ( netsh advfirewall firewall show rule Blockit | ...
3
votes
2answers
475 views

OpenVPN: How to mitigate path MTU issues on a per-client basis?

We have dozens of embedded devices installed at customers, all calling home to our OpenVPN service. That works fine in general, but a few of our customers have severe path MTU issues. Our influence on ...
0
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1answer
877 views

understanding “ip addr change” and “ip addr replace” commands

At the moment I have following IPv4 addresses associated with eth0 interface: T60:~ # ip -V ip utility, iproute2-ss110629 T60:~ # ip addr show dev eth0 2: eth0: ...
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3answers
813 views

How to make same server IP accessible from multiple interfaces that are not bridged on Windows 2008 R2?

My server have two interfaces (e.g. A, B) that are not bridged. These interfaces have different IP adresses (e.g. 192.168.1.1, 10.0.0.1). These IP addresses are in different subnets. I need to ...
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votes
0answers
21 views

connection via ip fails but can be established using hostname

I cannot reach the Server using the IP-Adress, but if I use the FQDN or the hostname itself, the connection can be established. The connection should be established by the ...
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4answers
10k views

Outlook 2010 fails to connect to Exchange 2013

I have an Exchange Server 2013 and I am trying to connect using Outlook 2010. Both are running on the same server. The Outlook installation is just for testing mailboxes. Outlook first refused to ...
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0answers
19 views

Understanding the different IP's setup in my core server files- Confusion [closed]

I am running CentOS 5 with BIND and httpd, using PuTTy to connect via SSH. I login to SSH with IP 200.100.107.187 and can access my server through a webbrowser also at that IP This IP is the one my ...
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0answers
42 views

Mystery IP address attached to Windows Server

While scanning my network I came across a mysterious IP address which shows no open ports but responds to pings. It is in the range of static IPs I reserve for servers. When checking arp table of PC ...
0
votes
1answer
23 views

Redirect subdomain to an Apache Virtual Host

I have a website "example.com" hosted on a provider that allows me to manage my own DNS. I want example.com to point to the provider's IP address but I want "subdomain.example.com" to point on my own ...
5
votes
4answers
2k 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 ...
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votes
1answer
21 views

is host id size of IP address will vary between the private and public networks? [duplicate]

I understood that size of host id in the class c network is 8 bits(1 Octet) Classful network After started exploring about private networks, in the below link Private network The host id size of ...
-4
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0answers
14 views

Actual Public IP different from Public IP shown on ip lookup [migrated]

When I test my connection on services such as whatsmyip.com, I get 112.134.xx.xx as my public address. When I check the ADSL connection status on my router, it shows a totally different IP address ...
-6
votes
2answers
25 views

Call a server Ip simulating domain name [closed]

in order to migrate my domain name to my new server, I would like to test it with real domain name. I think we can call Ip server giving as argument domain name ? How can I do that ? Something like ...
0
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0answers
3 views

Why does nslookup for espn.com give an IP that goes to go.com? [migrated]

If I do an nslookup on espn.com, an IP is returned 199.181.132.250. When I put this value in the browser I get go.com. If I had add a 'Host header to the request, I still end up on go.com. What am I ...
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0answers
23 views

Does this mean the DoD is listening to my D-Link Router? [migrated]

I've only recently been monitoring my router activity and this Incoming listing from a DoD IP address is almost always present. It looks as if they are using the IGMP Protocol to sniff at my domain, ...
0
votes
2answers
23 views

Apache module RPAF documentation? [closed]

I installed libapache2-mod-rpaf package on Debian because mod_remoteip seems not available. I cannot find any documentation about this module. I found a github repo but the configuration options are ...
16
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7answers
16k views

Force local IP traffic to an external interface

I have a machine with several interfaces that I can configure as I want, for instance: eth1: 192.168.1.1 eth2: 192.168.2.2 I would like to forward all the traffic sent to one of these local ...
0
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0answers
6 views

Specific ip settings for different wifi access points [migrated]

I have a situation where I want to connect a tablet to two different networks, not simultaneously but switching from one to the other (and at different locations). The tablet is running on Windows ...
1
vote
2answers
235 views

How is a TCP request routed from a virtual machine to an outside resource and back again?

Scenario: Computer A has a local ip of 192.168.1.100, which is running a VM inside of it. The VM now makes a tcp request to an external IP address (74.125.225.98). Could someone explain how the ...
1
vote
1answer
3k 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. ...
2
votes
2answers
46 views

Assign multiple IP and Gateway in Ubuntu Server

I'm trying to find an option to add/assign multiple IP addresses and Gateways to the Ubuntu Server. The reason behind is, I want to access devices from two different networks. For instance I may want ...
0
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0answers
20 views

openVPN on another IP

I had a working OpenVPN on my server, and it was working fine, redirecting traffic to the/from the internet, but when i have found that the traffic to the services on this server not routing through ...
0
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1answer
41 views

What is the best way to redirect a user to another server and domain and keeping the URL intact?

I suddenly have a client who doesn't understand much in programming. So the best solution in this case would be - to run the app on my server while keeping his domain under his control. He has there ...
0
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2answers
890 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 ...
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votes
0answers
16 views

Nginx Server Blocks fail for new domain name

I have bought a domain name so users can access my server without using the IP address. However, I have set up the domain name and pointed it to my IP, but whenever I try to access the site through ...
-2
votes
1answer
219 views

Set a Valid IP On Vmware Vm's

I have a VPS on which I installed VMware Workstation version 9. Now I have 3 valid IPs: XXX.152.193.66 XXX.152.193.101 XXX.152.193.103 Gateway: XXX.152.193.65 Now two IPs are set on the host and ...
0
votes
1answer
15 views

Client not routing through CentOS7 OpenVPN

I recently setup a server on digitalocean, i setup the vpn server key etc and i can connect with my client, the problem is that if i connect and i google for my public ip adress that i don't get the ...
20
votes
3answers
19k views

Where does Amazon publish the range of IP addresses used for EC2 instances by region?

How can I keep updated of changes to the range of IP addresses that Amazon will use for EC2 instances. I want to add a range of IPs to my firewall settings to allow access to my 'ground based' mysql ...
1
vote
2answers
9k views

Ping to IP address returned Destination Unreachable for a different IP address… huh?

This was totally an isolated incident, but I performed this command: ping 192.168.1.134 and got this result [image]: Pinging 192.168.1.134 with 32 bytes of data: Reply from 192.168.1.133: ...
29
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5answers
2k views

Is 0.1.2.3 a valid IP address?

Are IP addresses with all zeroes in the first octet valid? For example, can 0.1.2.0/24 be a valid subnet, with network address 0.1.2.0, broadcast address 0.1.2.255 and an usable address range from ...
0
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0answers
32 views

Nanostation M5 Point to Point, SOHO Router IP Addressing

I have two sites both with Line of site from each other. Each of the two sites has a Draytek 2830 on site with an ADSL connection. I have a pair of Nanostations which I want to setup on the Ethernet ...
0
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2answers
85 views

Ubiquiti Unifi Wirlesss Access Point not obtaining IP Address when VLAN Tagged

This question follows on from this one which I managed to resolve. Draytek 2830, Multiple VLANS on Same Port My Ubiquiti Unifi Wirlesss Access Points are not allowing clients to obtain an IP address ...
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votes
0answers
29 views

IP Route Add Issue [migrated]

I'm trying to set up IE browsing with fixed routes in the route table. Before adding the static route, I can browse http://www.whatsmyip.org/ with internet explorer After I add a fixed route e.g. ...
-2
votes
1answer
31 views

Online tool to calculate IP mask [closed]

I know there are so many tools to calculate a network range starting from an IP and its mask (192.168.1.0/24) but do you know an online tool to calculate the mask starting from first and last IP ...
0
votes
1answer
53 views

How to use pfSense as a firewall in order to assign url whitelists to IP groups

In a corporate network without DHCP, the temporary solution to whitelist a couple of useful sites is to change the hosts file under Windows/System32/drivers/etc/ but since modern sites tend to change ...
0
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1answer
17 views

Debian Bridge Network Connection — Static IP Addresses

I have a PC with 3 Ethernet ports. I am able to share internet to the other two ports with internet coming in on eth1. I use the following setup on /etc/network/interfaces after aptitude bridge-utils ...
0
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1answer
44 views

How can I get a report of all MAC addresses nearby? [duplicate]

I am trying to get an idea of how to get a list of all the MAC/IP's near my network. I've tried arp -a commands (What I found from some previous searching.) but those are not showing any of the ...
0
votes
1answer
41 views

Draytek 2830, Multiple VLANS on Same Port

The Kit Ubiquiti Unifi Long Range Wireless Access Point Cisco SG200-08P Switch (VLAN, POE Support) Draytek 2830VN Router The Problem I need to enable Multiple VLANS against a single port on the ...
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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 ...
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votes
0answers
15 views

Windows IP address cached even after cable unplugged? [migrated]

I have a PC which connects to a network by both wired cable and wireless. Of course, it has 2 IP Addresses : 192.168.5.111 and 192.168.5.112. (Subnet mask 255.255.255.0) As usual, the PC picks the ...
0
votes
2answers
36 views

Load balancing IPTABLES POSTROUTING rules

I have an interface with 5 IP addresses assigned to it (as virtual adapters) let's call them x1,x2,x3,x4 and x5. Currently I have SNAT POSTROUTING forwarding rules from local source range to specific ...
0
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1answer
810 views

Free DNS redirect for non-static IP with purchased domain?

I purchased a domain name from GoDaddy, and I'm wondering if there is a free way to create a DNS redirect to my home apache2 server (Ubuntu). I don't have a business line, so I technically don't have ...