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

learn more… | top users | synonyms

0
votes
1answer
25 views

How to specify external IP address in a Google Compute managed autoscaling group

I've got a managed autoscaling group set up behind a load balancer in Google Compute. It's working well, and adds / removes instances as it should. Is is possible to specify (in any way) the ...
2
votes
2answers
13k views

nginx not serving requests to external IP address

I have nginx running on port 81. I can telnet using telnet 127.0.0.1 81 and everything is fine. But when I try to telnet to my machine from my Mac (an external IP address), I just get this error: ...
1
vote
2answers
2k views

Finding local IP addresses using Python's stdlib under Debian jessie

I am writing a distributed systems program in python, and in this program I need to know the local ip-address... eg. 168.192.... 10.13..... etc, not 127.0.0.1 or hostname. I have found following ...
-1
votes
0answers
14 views

How to reconnect with specified IP? [on hold]

I have an Apache2 Lamp server hosted on my raspberry pi. We recently had a power flicker, and my RPi restarted and now has a different ip. I cannot get to the router settings to allow external ...
0
votes
0answers
12 views

Node not Obtaining IP Address [on hold]

Infrastructure: Modem-Router has 4 Ethernet Ports. Port 4 is reserved for IPTV (VLAN). Switch A is attached to Modem-Router on Port 4 to host IPTV. 2 IPTVs are connected to Switch A. Switch B is ...
0
votes
0answers
15 views

Additional IP added to server. But opening default IP website [closed]

I have a Dedicated server (from Hetzner) with Centos7 and using vestaCP. Added an additional IP to server & in VestaCP also. Pointed a domain to that ip. When opened that IP or that domain in ...
6
votes
4answers
4k 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 2ko/...
0
votes
2answers
50 views

How to give static local IP address to RADIUS Server software and IIS Server Website?

I have following network topology: Whenever I turn on my Server all the local IP addresses (in the form 10.0.0.X) of RADIUS Server and IIS Server changes or sometimes port is assigned to SVCHost ...
8
votes
5answers
2k views

What is the origin of the private network address 192.168.*.*?

I had a smart (but non-technical) user ask me today: Why did they pick 192.168.. for a private network address? The only answer I could come up with is because 192 = 11000000 in binary. And 168 is ...
6
votes
5answers
12k views

Specifing ip address for outbound connections on a multi ip host

one of my servers (Debian 5.0.6) has two public ip-address on the same interface. This used to work well for months but suddenly it is using "the wrong" ip addresses for outgoing connections. This is ...
0
votes
2answers
27 views

Port Scanning Large Sets of Targets

1)How would you check to see if a list of ~10000 IPs if they have port 80 open? 2)How would you go about the same scenario but with a port range? 3)How would you check a list of 10000 IPs to see ...
0
votes
2answers
55 views

Finding ip address from mac addess

I have router in bridge mode which is installed Openwrt and I want to find IP address of devices which are connected to the router. Since router is in bridge mode, I can not find IP from DHCP leases, ...
0
votes
0answers
31 views

Safely restart network via ssh to set static ip

In my /etc/network/interfaces.d/eth0 I have set: auto eth0 iface eth0 inet static address 10.0.0.25 netmask 255.255.255.0 gateway 10.0.0.1 dns-nameservers 8.8.8.8 8.8.4.4 Which ...
0
votes
0answers
23 views

How do I route a RRAS VPN connection to a specific interface depending on the original interface

I have 3 public interfaces with a RRAS VPN server, I don't really know how to explain it, So I'll just add a diagram. How can I route the VPN's clients to a specific interface depending on its ...
1
vote
2answers
2k 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 ...
4
votes
1answer
4k views

Why are only 3 ip xfrm policies needed for a IPsec tunnel?

I have a site-to-site IPsec tunnel up and running between a strongswan (v5.2.0) instance (site A) and a RouterOS router (site B). Everything works fine, the hosts in the two private subnets setup for ...
17
votes
5answers
2k views

Are people really going to use public IPv6 addresses on their private networks? [duplicate]

I have been reading the Debian System Administrator's Handbook, and I came across this passage in the gateway section: ...Note that NAT is only relevant for IPv4 and its limited address space; ...
0
votes
3answers
803 views

mixed private ip address and public ip address without nat?

I distribute network using vlan, at vlan.1 we already use a public ip, and to extend the services at vlan.11 we using private ip address. The machine in vlan.1 can ping device in vlan.11 vice-a-versa....
-1
votes
2answers
51 views

In ISP network when assign my own Static IP to Network adapter Why I am not able to ping even nearest router [closed]

My ISP uses pppoe to authenticate and allocate ip to my machine but when assign my own Static IP to Network adapter Why I am disconnected from network or not able to ping even nearest router What ...
0
votes
1answer
22 views

Route to specific server over a single IP address

Is there any way to route a request from a specific subdomain to a specific server over a single external IP address. So for example Sub1.Domain.com:1234 goes to 12.34.45.6 and enters my local ...
0
votes
1answer
32 views

Get network interface Nginx is receiving request on

I have a server with multiple network interfaces, and I want to write a proxy server, which would listen on all of these IPs. My config so far: server { listen 111.111.111.111:40000; ...
17
votes
4answers
80k views

How do i find out what my IP Address of my MySQL host is?

I have a free domain running at x10hosting (x10.bz), and I want to find out the IP Address of my MySQL host for it, so I can contact the MySQL database from another host. I've already added that host ...
0
votes
1answer
22 views

Amazon EC2: Public IP changes at reboot

Im using Amazon EC2 to host a few websites on a single instance. From time to time I need to rescale my instance type. This requires a shut-down of the instance, and after relaunch the instance have ...
2
votes
2answers
2k 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, ...
1
vote
2answers
2k 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 ...
3
votes
0answers
27 views

exclude IP from nginx access log

How to exclude some IP address from access log? This is my config: server { listen 443 ssl; [...] access_log /var/www/web/log/access.log; error_log /var/www/web/log/error.log; location / { ...
-2
votes
0answers
16 views

NIC cards in a LINUX server [migrated]

I have below doubts, Can someone clarify, please? Four interfaces(say eth1, eth2,eth3,eth4) are configured with different subnet IP addresses in my LINUX server, so does that mean are there four ...
1
vote
2answers
90 views

Block direct IP connections to Apache web server [duplicate]

I need to figure out how to block direct IP access to my website. Example: I want it so that when people type my IP address 1.2.3.4 into the browser it doesn't work, but when they type www.example....
0
votes
2answers
3k 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
votes
1answer
24 views

AWS EC2: Secure configuration via IP access list

My company have a network with a fixed IP address/IP address range. Is it save when I configure my Security group that all traffic from this IP address will be accepted and everything else will be ...
0
votes
0answers
18 views

iptables / routing - need to direct packets through a particular interface with frequent disconnects and default gateway changes

First and foremost, I did read this question iptables - Target to route packet to specific interface? and did my best to google, but so far can't figure out the solution. Problem: A linux machine (...
2
votes
0answers
21 views

How can I find the docker-machine network adapter name for a docker container?

I would like to introduce network variability into docker containers. Specifically, I would like to be able to run commands such as: sudo tc qdisc add dev vethecb732a root netem delay 500ms 400ms ...
0
votes
0answers
21 views

Cannot create macvlan interface, why?

My linux (debian jessie, 4.6.0-0.bpo.1-amd64 #1 SMP Debian 4.6.1-1~bpo8+1 (2016-06-14)) boxes have a number of modems and mifis connected. I would like to split off some of the processes in the system ...
2
votes
1answer
1k views

How to block all incoming proxy visits except from one specific I.P?

I have a page that is prone to attacks, so, in order to reduce the anonymous attacks, I use this code in my .htaccess which I found online : # BLOCK PROXY VISITS <IfModule mod_rewrite.c> ...
0
votes
2answers
160 views

How to get ILO IP address without a monitor?

I have a microserver gen8, that i just changed its location, now it's not connecting automatically to the internet. And to debug it i want to connect to ILO which is link up now but i don't remember ...
-3
votes
2answers
38 views

How can i set my new ip adress? [Debian / Ubuntu] [closed]

I have my own VPS at OVH and it comes with a default ip address in France. So for geolocation needs, i bought one for in the UK. Now i have Ubuntu server 16.40 running, and i want to set my newly ...
0
votes
1answer
23 views

ntpd appears to work with ipv6 servers, but not ipv4

So, we have an ntp server (ntp-4.2.8-r1) which uses this list of time servers: server pool.ntp.org server 24.56.178.140 server 2001:470:0:2c8::2 server ntp.markyate.net server ntpv6.dianacht.de ...
8
votes
3answers
7k views

Verify that a name server is registered at a TLD registry

Let's say I own the domain name example.tld. It is registered at registrar R. In my account at R, I registered the following name servers for the .TLD registry: ns1.example.tld --> 123.456.789.001 ...
0
votes
1answer
21 views

Lost access to IP restricted server

So we have a server that has IP restrictions set for SSH, cPanel..etc and our static IP has been recently changed before we could update the IP restrictions meaning we have lost access. The support ...
0
votes
0answers
23 views

monitoring if the ip is down (not up)

Is there a monitoring service that can notify if the IP that is normally down becomes reachable? So, the reverse of the usual stuff. I just need to check a few IPs, so bringing up a complete ...
-1
votes
1answer
55 views

Pointing namecheap.com domain name to www.ovh.co.uk server

I have bought vps hosting plan-3 from ovh.com. My ip is 158.69.219.147 or server vps85119.vps.ovh.ca I have installed my site on ovh, but my real domain name is www.free-sample-loop.com(typo ...
0
votes
3answers
33 views

Have 2 different applications use 2 different ip's with the same port on the same host

I want to have an application running on x.x.x.x:80 and another one at y.y.y.y:80 on the same host. I have bought 2 ips from ovh and would like to know how to do so. I found these: Debian/OVH: How to ...
0
votes
2answers
117 views

Visitors from strange IP addresses

Almost every day I have new users on my website that come from strange IP addresses: 162.158.102.39 162.158.102.41 162.158.103.42 etc. Maxmind says these IP addresses belong to Poland, Cloudflare. ...
2
votes
2answers
2k views

How to make lxd containers accessible to the LAN

If I use Virtualbox to spin up a VM, I can select "bridged" as the network adapter type and this results in the guest/virtual NIC being connected to my physical LAN and hence getting a LAN IP from my ...
1
vote
3answers
75 views

Setting a static IP exactly as the dynamic IP yields loss of connection

Before I start I would like to point out that I do not want to get hung up on DNS issues with this question. EVEN IF DNS issues are apparent that would have nothing to do with basic IP traffic and ...
56
votes
8answers
51k views

What is “anycast” and how is it helpful?

I'd never heard of anycast until a few seconds ago when I read "What are some cool or useful server/networking tricks?". The wikipedia "Anycast" article on it is quite formal and doesn't really evoke ...
0
votes
1answer
17 views

List of auto-banned IPs in IIS?

I have configured the "FTP Logon Attempt Restrictions" feature in IIS, but nowhere can I find where restricted IPs are listed. There must be a list somewhere that IIS will uses at logon. So my ...
2
votes
3answers
4k views

DNS A record with dynamic ip

My hosting provider (amen.pt) told me I can keep my e-mails and webmail hosted with them and host the website elsewere. For this to work I need to change the DNS A record 'www' to the IP of the other ...
0
votes
0answers
26 views

OpenWrt - connecting WLAN and LAN at network level 3

I have a Linksys WRT54GL router with OpenWrt installed. I would like to create two independent networks, each with its own DHCP server: one WLAN and one regular LAN using the switch ports. My /etc/...
0
votes
1answer
19 views

Looking to mimic Netgear Nighthawk AC1900 Router Settings in a TP-Link MR3040 Router [closed]

I have a Netgear Nighthawk AC1900 Router that is setup and working correctly with a network that has two Wifi cameras and a Linux PC acting as a server. Static IP addresses have been assigned to both ...