Server Fault Stack Exchange
Server Fault Stack Exchange

Questions tagged [ip]

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

IP (Internet Protocol) is a protocol which encapsulates data for transit across the Internet and encodes its source and destination addresses, among other parameters. It implements the network layer (layer 3) of the OSI model.

Questions related to IP (addressing, routing, and protocol issues) fall under this tag; questions merely containing an IP address do not.

2827 questions
0
votes
2 answers

Public IP Routing over Private GRE tunnel

I have a GRE tunnel configured between two linux boxes. The tunnel works fine. I can ping from each host the other private ip. Head privateip: 10.0.0.1 publicip: 8.8.8.8 Tail privateip: 10.0.0.2 publicip: 7.7.7.7 The public IP on Tail has the…
Paul
0
votes
0 answers

OpenVPN DNS resolution issue on router (EdgeOS)

I've been using OpenVPN client over vtun interface and all works as expected only if the remote VPN server name (in the OpenVPN config) is the IP address. When I use the DNS name as part of the OpenVPN config "remote" OpenVPN cannot establish…
Tamir
  • 101
  • 2
0
votes
3 answers

SED to search for and delete ip with a partial match

I have various bash scripts that run, they scan log files for folks who try and make mischief, spam us and so on. I have been struggling with this for some days trying to figure this out. I have a text file with a list of with ip's I use sed to…
Godfrey Hamshire
  • 11
  • 2
0
votes
2 answers

Getting new ip address automatically

i want to get new public IP addresses from DHCP and add it to my etc0 device. how can i get IPs and append them? and also is there any limit on it? i talked to network manager on my datacenter and he said there is no issue for getting new IPs. **…
Pezhvak
  • 117
  • 5
0
votes
1 answer

IP phones get DHCP NAK from superscope configured DHCP server

We are experiencing a strange problem with our 2012R2 DHCP server. Setup looks like this: Superscope with two scopes: SCOPE 1 - 192.168.100.0/24 (for PC) SCOPE 2 - 192.168.101.0/24 (for IP phones) No vlans or anything, just fortigate router with…
Eugene K.
  • 101
  • 2
0
votes
1 answer

How to get an DHCP allocated IP address without a reboot?

I have a server which currently staticly addressed with an entry in its /etc/hosts file, e.g.: 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6…
boardrider
  • 949
  • 2
  • 18
  • 29
0
votes
0 answers

How can you prevent X-Forwarded-For spoofing on haproxy?

Is there a way to prevent the X-Forwarded-For from being spoofed in haproxy? i.e. Can I rename that header to something else? Or is there another way to forward on the correct IP address of the client?
Wayne
  • 73
  • 1
  • 11
0
votes
2 answers

Best way to secure a SQL VM when clients do not have static IPs

I have a VM running SQL in the cloud. Typically I would set up inbound rules on the SQL ports in Azure and on the VM's firewall, but my clients do not have static IP addresses to use in the rules. How can I go about securing my VM when I don't know…
pkan
  • 3
  • 1
0
votes
1 answer

Can't ping 253.100.156.93 from Linux

At a remote location, there is a chinese ethernet enabled POS printer. It somehow garbled it's configuration, and its self-test now says that its IP address is 253.100.156.93, (which is inside a IANA reserved block) No biggie, I thought - I will…
Moritz von Schweinitz
  • 243
  • 1
  • 2
  • 11
0
votes
1 answer

Get IPv6 route for VM

is there any option to get something like this for IPv6 (inet6 or -6): ip route get 8.8.8.8 Result: 8.8.8.8 via 94.**.***.1 dev ens3 src 94.**.**.112 uid 0 cache Where I can get the local IPv6 adress from the server (domain doesnt exists / is…
Aeris
  • 123
  • 1
  • 1
  • 6
0
votes
2 answers

How to ban a specific IP from my website?

I'm using Apache,hosted on Linux.
PHP
0
votes
2 answers

DHCP IP address with a client specified DNS server? Is this against spec?

I have some embedded network devices that allow me to specify whether or not they use DHCP. Unfortunately, we have some clients that have less than stellar DNS servers in their networks and have caused routing issues with these devices. My solution…
Todd Brooks
  • 105
  • 3
0
votes
1 answer

IP Routing Issues OpenVpn

I have two servers in the same datacentre, running Ubuntu 16 Server A: 10.12.96.5 Server B: 10.12.96.4 Server A, is running OPENVPN Server. When I connect to server A using SSH, I can PING server B. When I connect from my client PC to server A using…
Ian Arman
  • 123
  • 3
  • 8
  • 15
0
votes
1 answer

How to check IP range in nginx location?

I have nginx.conf and need to check the client request IP $remote_addr in IPs range or not? My IP range means 123.132.123.15 to 123.132.123.50 (15 - 50). And valid IPs need include some specific IPs. Any solution without input 36 IP addresses in the…
Huy Chau
  • 101
  • 1
  • 4
0
votes
1 answer

What is NAT port of an IP address?

I received a request from police to provide all available data of one of the users of my dating website. So, I sent them IP address, connection times, email address. Then I got another email with a question if I have registered the NAT port of IP…
Verode
  • 3
  • 1
1 2 3
…
99 100