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

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1answer
24 views

Virtual hosts instead of separate IPs?

I've been wondering if it's possible to host multiple applications using a single port on one IP address. I'm meaning a similar method to Apache Virtual Hosts where you can assign domains/subdomains ...
0
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0answers
23 views

Tool to detect alias IPs in a network [on hold]

I'm on the lookout for a utility or tool on linux that can give me all the alias IPs used in a network. For example, if this is what I get on doing an ifconfig eth0 Link encap:Ethernet HWaddr ...
0
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0answers
13 views

Heroku, Github Pages, and GoDaddy — Answer & Explanation Requested

I'm in a bit of an interesting situation. I have two sites that I have deployed in the last two days. The first is my personal website. I have a custom domain name for my site that is linked to my ...
1
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2answers
39 views

NOIP Static IP address resetting with router

I need a static IP address to access a client's website, which has a list of whitelisted IPs but rejects all others. This is great, except I have a Dynamic IP address and a Talk Talk router. I ...
1
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0answers
24 views

2 IP cameras with same configuration but different behaviour

I have a Vodafone Station router, and 2 IP cameras connected to it through an Ethernet cable. Both have the same configuration. Both DHCP enabled, one has IP 192.168.1.10 with port 81 and the other ...
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0answers
20 views

How can I surf a website as an specefic ip address? [on hold]

I already can change my identity to other random or foreign ip address through proxy or Tor browser but I want to surf a website like a specific existent ip address... how can I do it ?
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0answers
21 views

Need help about VPN and programs [on hold]

2 VPN to 2 programs, it's possible ?? example: Program A use IP of VPN 1 and Program B use IP of VPN 2. At the same time. Thanks --- edit with another example --- I have installed on pc: Chrome ...
1
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0answers
38 views

Samba shares don't work when mounted via host names from /etc/hosts

I have /etc/hosts file with this line 10.1.17.123 SAMBAWINSERVER I am trying to mount samba shares referencing server by name in the hosts file. I tried to mount it via regular mount command or ...
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votes
1answer
52 views

Can't Bind IP Address To Machine [on hold]

I have the following IPs but I can't bind them to my machine I am getting errors. Here are the IPs I own. 2607:5300:60:1234::/64 - Came with server 158.69.123.123/29 - ...
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0answers
16 views

Cisco ASA 5505 access external IP address from internal

Got a bit of a head scratcher. ASA Version: 8.3(1) ASDM Version: 6.3(1) So I have an ASA 5505 with 3 interfaces (Inside, outside and Hosting). The inside interface has the IP range of 10.0.0.X and ...
0
votes
2answers
967 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 ...
2
votes
1answer
42 views

ASA Site-to-Site VPN Failure

We have a series of remote sites connecting to our main site using site-to-site VPN over Cisco 5505s. Every remote site works fine, except one. What is unique about the failing one is that its IP ...
0
votes
1answer
20 views

Server abandons set static ip and returns to dhcp given address

I have a few virtualized (ubuntu 14.04 LTS) servers under KVM that I'm trying to move to an ip block other than the one reserved for servers under dhcp (the 10.10.2.0/24 block). I change the ip and ...
1
vote
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
1answer
92 views

How can I access a URL through it's IP address? [closed]

http://example.com has the IP address 93.184.216.34. From what I've read about IP addreses and ports, this leads me to believe that appending the port 80 to the end of it (93.184.216.34:80) should ...
2
votes
1answer
23 views

Connecting two clients openvpn

I have two clients one connected to vpn server through vpn and another without vpn. I can ping both the clients from my server but I can't do directly using one client to another. I am adding route ...
0
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0answers
12 views

Mutual Authentication - Allow from IP range without client certificate

Is it possible to set SSLVerifyClient: Require but, also allow IP range for users who do not have the client cert? Possibly to use: Order deny,allow Deny from all Allow from xxx.xxx.xxx.xxx ...
15
votes
2answers
2k views

In the output of `last`, what does suffix “.d” after an IP address mean?

In order to find out who was logged in recently on my server I am using the command: There were logins from very strange IP addresses e.g.: username@pc:/home/user$ last username pts/16 ...
9
votes
4answers
21k views

Windows static routes w/o specifying gateway (next hop)

I have the following scenario: Computer A: 198.51.100.8, netmask 255.255.255.0 Computer B: 203.0.113.9, netmask 255.255.255.0 Both computers are on the same LAN segment; no default gateway is ...
0
votes
0answers
14 views

How does NAT work with more than 2^16 devices? [duplicate]

According to this article, NAT keeps track of which devices to route responses to by specifying a response port that it listens on. For example, when I make a request from a NATted computer, my router ...
-1
votes
0answers
3 views

Connecting from android device to webserver [migrated]

Given I have the following setup: Windows 8 PC with IP 192.168.178.67 On it runs a vagrant Homestead environment with IP 192.168.10.10 On my windows machine my hostfile is configured like so: ...
8
votes
8answers
13k views

Unix shell: easy way to get IP from hostname

What is the easiest way to get the IP from a hostname? I was thinking about trying a ping and parse it from the output. However, that doesn't seem very nice and will probably not work the same way on ...
8
votes
2answers
13k views

Nginx - How to redirect users with certain IP to special page

I run quite a big image gallery and there are 5 visitors that create an enormous amount of traffic by downloading the whole site every day using webcopiers. Those visitors have static IPs as it seems. ...
12
votes
4answers
16k views

What is this IP address: 169.254.169.254?

I have always noticed an IP something "169.254.x.x" attached even when I am not connected to any network in my Windows operating system. In Linux, when I list my routing table. $ ip route show ...
0
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0answers
4 views

Why can't I reach my VM from the Win7 host machine? [migrated]

I have a Linux/Boot2Docker virtual machine running through VirtualBox on Windows 7 Pro. I can't ping or otherwise reach the VM from Windows. (However, pinging my Windows IP from the VM works fine.) ...
1
vote
1answer
132 views

heartbeat doesn't work on virtual interface

I try to use vertual interface as broadcast for heartbeat(bcast in ha.cf). When I try it I see this message in syslog: May 23 12:17:26 Ubuntu2 heartbeat: [1107]: ERROR: glib: Error setting socket ...
1
vote
1answer
87 views

All nework interfaces hang for seconds while one interface goes up/down

I am building a client/server application that uses several network interfaces in parallel for redundancy, and I have noticed that while one network interface goes down or goes up, the communication ...
0
votes
2answers
38 views

Can I access a NAT addressed host behind a gateway from the WAN side without DNS or VPN (with DNS if it's not possible)?

I have a very simple gateway running a minimal Linux which is serving as an IP router with NAT and DHCP on the LAN, and a static IP on the WAN. The gateway router from the LAN side goes to a big ...
1
vote
1answer
18 views

Get OpenVPN client IP script

My machine get's an IP from OpenVPN server when connecting to the VPN gateway. This is tun0 on Ubuntu. I assume naming might be different for other systems that may connect to OpenVPN gateway. Is ...
0
votes
1answer
104 views

Can I redirect/route IP adress to another IP address (windows) [closed]

Can I map 146.112.61.106 IP address to my 127.0.0.1 adress ? so when I type 146.112.61.106 I got redirected to 127.0.0.1 ? (some netsh command maybe ?)
0
votes
1answer
18 views

How can I discover the ip ranges for a particular ISP for roadwarrior vpn whitelisting?

I have a road warrior who will be based overseas for several months and will be using a particular ISP. Our VPN is white-listed. Rather than add his IP which changes every few days, is there a way of ...
0
votes
2answers
1k views

GRE keepalive with Linux and RouterOS

I have a Linux host and couple of routerboadrs. I created a GRE tunnel, but Linux does not answer keepalive packages. Then router mark gre connection as unreachable, so I cant send to Linux host from ...
0
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0answers
14 views

IIS 7.5 - Not listening 0.0.0.0:80

I am using IIS 7.5 on Windows Server 2008 R2. From this server, I can access the localhost (standard IIS start page is displayed). But I can't access it from any other machine belonging to the same ...
5
votes
4answers
3k 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 ...
0
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0answers
16 views

Software to confirm accessibility of static IP remotely

I have a desktop machine (OS CentOS 7) with a static IP. Sometimes this static IP is not accessible remotely and I have to run following command to make it available remotely. sudo service ...
0
votes
0answers
45 views

Reserve current VIP on VM Azure

I'm trying to reserve the current VIP on my Virtual Machine. I don't want to create a new IP I want to use the current VIP. I think this is possible since 1 or 2 months ago. This is the code I ran: ...
1
vote
1answer
33 views

Prevent IP Spoofing on OpenVPN tun

I have a question regarding IP Spoofing and authentication. I have an OpenVPN server in TUN mode with many untrusted clients in the same VPN network, and I was wondering if one client is able to spoof ...
0
votes
0answers
18 views

MacBook Pro Power over Ethernet support? [migrated]

I've got recently a Cisco IP telephone. I've an MBP (15", Late 2011): Is there any way to enable PoE to test my phone? Or do I have to buy an extra PoE injector just for this purpose? Thanks in ...
3
votes
5answers
2k views

How to check, if IPs in your network are blacklisted?

I would like actively monitor, if any of my network IPs are on blacklists. Here I would like to collect links to instructions, how to sync blacklists, which allows that.
2
votes
0answers
43 views

Is global IP one-to-many communication practical today? [closed]

One-to-many communication over the internet is an enabling technology for many fascinating business and research projects. In principle, IPv4 and IPv6 allow for such communication by the ...
0
votes
1answer
32 views

Reverse DNS query of public IP returns localhost

I'm seeing this unusual behavior with reverse DNS lookups on this public IP Address: 222.253.228.79. Can someone explain what's going on? MXToolbox PTR lookup resolved localhost as the domain ...
0
votes
1answer
158 views

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. ...
8
votes
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 ...
-2
votes
3answers
58 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 ...
0
votes
1answer
11 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 ...
0
votes
1answer
29 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 ...
0
votes
1answer
2k views

Should I expect ICMP transit traffic to show up when using debug ip packet with a mask on a Cisco IOS router?

So I am trying to trace an ICMP conversation between 192.168.100.230/32 an EZVPN interface (Virtual-Access 3) and 192.168.100.20 on BVI4. # sh ip access-lists 199 10 permit icmp 192.168.100.0 ...
-5
votes
1answer
57 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 ...
2
votes
2answers
254 views

Stop IIS 8.5 from listing on Port 80, but still listen on port 443 for specific IPs

A have an application server that serves a number of IIS 8.5 applications on a number of IP's. Some use port 80 only, some use port 443 only, some use 80 & 443. For the sites that use 443 only, ...
0
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0answers
25 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 ...