Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.
5
votes
0answers
107 views
Machine always responds to 192.168.1.2 IP address, which is not set on the machine
UPDATE BELOW:
UPDATE 2 BELOW: FINAL Solution
I have a brand new HP EliteBook notebook 8560p running Windows 7 64bit. I plug it into a small Dlink di-604 router, it is currently configured with DHCP ...
1
vote
1answer
30 views
Connecting to SQL Server on EC2 | Elastic IP vs Elastic IP Public DNS
Based on this excellent article by @esh on using external Elastic IP DNS names internally within EC2, I am in the process of changing my connection strings for my web server to connect to a DB server ...
0
votes
1answer
22 views
IPSec Tunnel via Shared band using local IP instead of external
We have recently moved onto Shared Band which is causing us some issues. We have a direct Ip Address Mapping which maps our External Address down to our internal address set on the router (which ...
-4
votes
0answers
52 views
My linux server blocks me [closed]
My app server decided to block a certain IP : 188.64.200.111
I can't find the place it says something about it.
The server running Apache 2.2.21
The application is a php application 5.3.9
Kernel ...
0
votes
3answers
69 views
View other computers on a two router network
I'm currently facing a small problem regarding a new network setup. I have a few desktop PC's and Ethernet printers that all need to be connected via an Ethernet network.
I have 2 routers in the ...
1
vote
2answers
87 views
Why Can't I Reach My Amazon EC2 Instance Via It's “Elastic IP Address?”
The server works fine via the Amazon assigned DNS entry, but I cannot reach it (using a browser) via the Elastic IP address Amazon assigned the box. Ping does not work either. I am trying to confirm ...
0
votes
0answers
17 views
broadcast network connection on ubuntu through virtualbox
I'm developing a website using ubuntu as a host web-server through virtualbox.
when I first set this up, I was broadcasting the ip address so that on my tablet, I could navigate to the ip address of ...
-1
votes
3answers
69 views
how to set up multiple IP addresses on my linux? [closed]
I'm doing some computer network homework and I'm supposed to develop some sort of Peer to Peer file sharing software, and when I wanna test it I need to run a few (5) instances on my linux/ubuntnu ...
2
votes
2answers
110 views
Change the SSH authentication method depending on the IP address
How can I setup my SSH server so that the authentication method depends upon the client IP address?
internal network -> password login enabled
request from WAN -> only passkeys enabled
I ...
0
votes
0answers
33 views
Tether with mobile but use same IP address [closed]
Our university (school) has a limitation that one can only connect to their network using one device per student. It has been put in place because of the poor connectivity here (I'm in South Africa). ...
1
vote
2answers
62 views
IP Level Failover for Web Servers With BGP (Am I Insane?)
I've considered using Round-robin DNS failover, but due to various levels of DNS caching, you run the risk of old records pointing to a down site.
If I own my own address space and AS number, in data ...
1
vote
1answer
69 views
Multiple IP address Amazon EC2 for SSL certs?
I have a few clients who I host websites for. Right now I am using a web hosting reseller package to do this, but have been considering moving to Amazon EC2. The only problem is the clients need ...
0
votes
0answers
35 views
DNAT port routing trough openvpn and nat
I have an openvpn tunnel between two servers, the first one has a public static ip address and the second one is behind 2 nat. This last one has a subnet, clients are on the 192.168.15.x My vpn is ...
0
votes
0answers
42 views
I need a way to manage IP usage / MAC assignments for all of our infrastructure
I manage several XenServer nodes. I need a way to track IP usage and the MAC addresses associated with them. I also need a way to communicate with other staff about assignments and place work orders.
...
2
votes
2answers
71 views
Forwarding traffic to a specific port on to different IP
My friends have a Mine craft server with an ip to connect (206.217.128.131:25571). This is obviously not ideal as a true domain name would be more user friendly.
Although I share a VPS with a friend ...
1
vote
0answers
38 views
Why my 'hosts list' is not updated in NO-IP ? [closed]
I am trying to set up NO-IP for my ADSL connection ( dynamic IP ). I have added my hosts on the website and after more than an hour the list on the application on my PC is still not being updated.
...
1
vote
2answers
108 views
How do I do IP Failover for my Public IP address with Linux HA
I did a lot of experiment with heartbeat, corosync and pacemaker for IP FailOver which I have to do with Public IP. I did more than one ip failover(VIPs) with two nodes, also with three nodes BUT ...
0
votes
0answers
38 views
KVM network problems
I use ConVirt as virtualization platform. pbr1 works as gateway. When I try to ping any IP from the VM, it says, that destination host is unreachable. When I try to ping the gateway, it does. Packets ...
1
vote
2answers
46 views
Redirect based on location, countries and languages: is there a good answer?
I've got a site that needs to have at least two almost identical versions for two different countries/languages, and visitors should access one or the other depending on their location, country or ...
0
votes
1answer
95 views
Ubuntu - New Ubuntu server won't accept new public IP
I'm currently setting up the servers and since I gave server HachiSoftware02 it's public IP it won't let me connect to it via SSH.
When it had a local IP it worked fine and I need the server for ...
0
votes
2answers
43 views
Access HP Lights-Out from remote server
I have a HP Server on Co-location that i administrate using HP Light-Out and remote desktop to windows.
The problem is that the Lights-Out ip now is gone (not working any longer) but the remote ...
0
votes
2answers
29 views
Apache Redirect TO IP Address (non-URL)
I've been trying to redirect web traffic from HTTP to HTTPS by adding the line to the httpd.conf file:
Redirect permanent / https://100.100.100.100
but to no avail. The browser response is Firefox ...
0
votes
1answer
46 views
Why does my domain resolve incorrectly on the server's network?
I've just set up a home server to host my site. I can access the site fine from any network apart from my home network.
I thought it might be an issue with DNS, so I decided to ping my domain from my ...
0
votes
1answer
31 views
Centos web server, 123-reg domaina nd DynDNS standard - cannot access site from domain, only IP
How to configure a 123-reg domain with DynDNS and a linux server?
Hi,
I've just set up a CentOS web server running lamp, purchased a domain from 123-reg and have signed up for DynDNS standard.
I'm ...
0
votes
3answers
79 views
How to bind an IP to a specific switch port with DHCP
I have servers connected to multiple Juniper EX4200 based virtual chassis. In order to make them hot swappable without manual reconfiguration, I would like to be able to always give the same IP, with ...
0
votes
1answer
82 views
Event ID 10020 on my DHCP Server
Every time I restart my server (Windows Server 2008 R2 Enterprise) the following DCHP events appear with the ID 10020 in my event log. I have a static IPv6 address but this event is still being ...
1
vote
0answers
116 views
Heartbeat Pacemaker 3 node/ip failover
I have setup two node active/active ip failover with heartbeat and pacemaker following the link at zivtech on the two load balancers for the backend web servers. Two LBs has public ip each which is ...
-1
votes
1answer
67 views
Dreamhost SSH activity now ip is blacklisted [closed]
I think that dreamhost blacklisted my ip address. I am giving this assumption due to the fact that I can not visit any of the hosted sites on the dreamhost server (namor). I also still have an ...
1
vote
2answers
90 views
Ethernet over IP
I need to merge two L2 broadcast domain into single domain and I have to do this over unmanaged by me L3 IP network.
All that I could find is vtun utility for linux.
Which software&howto you can ...
0
votes
0answers
8 views
Filtering domains using NPS 2008 R2
How can I deny a specific group of my VPN users the access to a specific domain like *.facebook.com?
I have created a new AD group and added a test user into this (only this) group. I have ...
1
vote
1answer
43 views
Using first available in an IP Address Block
what does it mean when a network admin says to use the first # in the address block of 226? And he gives me the below information:
IP’s: 204.68.134.226-.231
Mask: 255.255.255.0
GW: 204.68.134.254
...
1
vote
1answer
81 views
What causes duplicate ICMP ECHO responses?
I've never seen this before, neither have a colleague and an ex-colleague, both with a reasonably strong background in smallish ISP operations.
What causes so many duplicate ICMP ECHO responses?
$ ...
0
votes
3answers
59 views
How the web server distinguishes between different DNS names?
I want to know how a web server can distinguish between requests of different DNS names on the same server (same IP)?
for example, in my university there are two websites:
fea.kau.edu.sa
...
1
vote
1answer
66 views
Heartbeat ip failover on Ubuntu
I have 3 servers, 1 as load balancer and 2 as web-servers(apache tomcat) hosting some jsp pages. I want to add one more load balancer in active/passive mode to avoid SPOF and below is the expected ...
1
vote
3answers
95 views
Is there a way to have all virtual servers use the same SSL certificate without having multiple IPs?
Is there a way to have all virtual servers,in Apache, use the same SSL certificate without having multiple IPs? I know that you can use a certificate on one site, per port and per IP, but can I make ...
-5
votes
1answer
76 views
Bot being redirected to Google.com when requests Myspace.com… what? [closed]
first time on Serverfault.
I'm having a problem connecting to Myspace.com through my server. I've been using mechanize via Python to run a bot, (not spam, crawling for information on musicians) on a ...
0
votes
0answers
24 views
PHP - Display correct IP of user [migrated]
Somebody who is a PHP expert should be able to assist this novice user.
I need to display the user's IP address properly. I have this php to display the right IP of a user accessing our proxy server.
...
-1
votes
1answer
61 views
Congestion Control in TCP
Why is the threshold set to one half of the current congestion window size when the timer expires at the sender?
2
votes
2answers
249 views
If I block users with a blank IP address, will that affect innocent, non-technical users?
I run a website with an anonymous commenting feature. Users can flag each other for abuse; flags are tied to an IP address (grabbed via PHP from $_SERVER['REMOTE_ADDR']).
I've noticed that 99% of the ...
1
vote
2answers
90 views
why there is a large difference during the 1st and 2nd packet and then a very small difference between the 2nd and 3rd packet in the TCP handshake?
Why there is a big difference in the time elapsed between the SYN and SYN-ACK and then a much lesser difference between the time elapsed from SYN-ACK and the last ACK during the TCP 3-way Handshake?
-3
votes
1answer
75 views
List of known IP ranges [closed]
I'm looking to find a list of IP range/Owner.
Of course I would enjoy a comprehensive one, but even a "short list" would be OK to start with, as we probably won't be able to set policy regarding ...
0
votes
1answer
130 views
How to configure multiple addresses on a single interface using Fedora 16
I upgraded from Fedora 14 to 16, recently. I had two static IP v4 addresses configured on my ethernet interface by creating two files in /etc/sysconfig/network-scripts:
ifcfg-eth0 -> first ...
-4
votes
2answers
90 views
Getting IP addresses through sniffing [closed]
Is it possible to know the gateway address of a wireless AP that I'm not connected to through sniffing? Airodump-ng can show MAC addresses of the AP and the clients associated but doesn't show IP ...
-1
votes
2answers
170 views
DHCP for wireless, fixed for others [closed]
I've run into a situation where I need to have DHCP running for my wireless clients and fixed IPs for everything else.
I have absolutely no idea how to do this, tried searching here on serverfault, ...
0
votes
0answers
40 views
Setting client IP in pppd using scripts?
Is it possible to set a client IP in pppd scripts (e.g. in auth-up) ?
The reason is, we would like to give different IP address ranges to connecting peers based on their username prefix.
1
vote
2answers
46 views
backup static route on linux router
How do I set up a backup static route on a linux router. For example if I have 2 routers R1 and R2, connected through a switch, through two links:
R1(eth1)->switch->R2(eth1)
R1 ...
1
vote
1answer
76 views
Host gave me 5 IP's how do I add them?
Hi I recently picked up a dedicated server. My host gave me 5 ip addresses to use :) but I have only access to one...what do I need to do to have access to all 5?
I use the kloxo control panel and ...
0
votes
1answer
73 views
how to identify a customer by its network info?
I'm deploying a Linux device to multiple customers. A device executes an application that connects to my server. I need to uniquely identify a customer and map to its ID on server side. I cannot ...
0
votes
1answer
41 views
Provide access through single IP
I've assigned a dedicated IP on my server to one of my customer via Plesk. But when he accesses any external content the IP reflected there as Host IP is the primary one of my server and not the ...
0
votes
1answer
139 views
IP SLA on Cisco 1921 IOS 15.2T
Can someone explain to me why I cannot create IP SLA probes on a Cisco 1921 with the latest IOS (15.2T). It is clearly available for that IOS on that router model on the Cisco Feature Navigator ...
...
