IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.
5
votes
0answers
52 views
Why do I need to assign static ip address to the bridge and not to the physical interface?
I have bond0 with two physical interfaces in it.
Normally I used to assign static IP address to this bond0 to set up internet connectivity on the server.
Now, because of LXC virtual guests, I had to ...
1
vote
2answers
47 views
How to send mail by primary IP?
In a Debian server, I added a second IP by the following configuration in /etc/network/interfaces
# The primary network interface
allow-hotplug eth0
iface eth0 inet static
address 1.1.1.1
...
-3
votes
0answers
49 views
Identify Subnet class from ip address [closed]
This is my lecture question and I am just checking with the experts here, please help and not down vote as these are basics and I am just seeking help. Tks in advance
This is the question
Internet ...
0
votes
2answers
42 views
Why is there a total length field in the IPv4 header? [closed]
Headers of IPv4 datagrams feature a field called total length coded on 16 bits. As there already is information about the header length of the datagram, having the total length seems redundant: it can ...
-4
votes
0answers
28 views
rhel one server with two ip addresses with different subnet [closed]
I have a RHEL 6 Server. I have 2 ip's, one on the DMZ and another one on another segment. I need to have them communicate thru the IP's (meaning it needs to pass the firewall for the DMZ) but to no ...
1
vote
1answer
52 views
Linux: Allow/restrict IP bind permissions by user
I'm running a dedicated machine on RHEL (CentOS 6.3) that runs with multiple IP addresses. Multiple users also have access to the machine, on non-superuser accounts. I would like to prevent them from ...
0
votes
1answer
28 views
Able to visit site from domain name but not IP address
We have our website running with IIS7, a very strange thing happened just recently.
I'm able to visit the site without issue with the domain name (www._.com e.g. ), but if I actually enter the IP ...
-3
votes
1answer
38 views
can reach localhost:9000 but not 192.168.30.92:9000
My sonar (windows) server is running at static ip 192.168.30.92:9000 but cannot be reached on that server using that IP.
However, I can reach localhost:9000
What am I missing?
This was tested on a ...
0
votes
1answer
30 views
Unix box blocking an IP?
I have inherited a Unix box that is now running in AWS in an EC2 instance. Everything has been working fine until the other day we were doing some performance testing on the web application that is ...
1
vote
1answer
43 views
Two apache servers using same port?
so I have two apache servers on the same system.
Basically what I'm trying to figure out is if since I have 2 different IPs running on my system is it possible to have two different apache servers ...
0
votes
2answers
110 views
How do know if I can SSH in servers?
I have over 200 servers, but is hard to keep tracking all of them by some documents, after a while it gets outdated, so to refresh this document, I have to know which servers I can login via SSH.
I ...
-2
votes
0answers
34 views
Change MAC to that of Gateway [closed]
Having 4 virtual machines running on a host connected with bridge networking.
With gateway of vm and host on a different machine
Is it possible to spoof MAC address of gateway and give it to one of ...
1
vote
1answer
19 views
.htaccess rules cause infinite loop
I am trying to set up some .htaccess rules to stop my WordPress wp-login.php page being accessed from anyone outside of the UK (I keep getting hundreds of people daily trying to hack into it from ...
0
votes
1answer
37 views
Why are there two types of ICMP Redirect?
Wikipedia lists 4 types of ICMP Redirect reasons:
0 Redirect for Network
1 Redirect for Host
2 Redirect for Type of Service and Network
3 Redirect for Type of Service and Host
I understand ...
0
votes
1answer
35 views
how to install 2 simple ssl certificates on 2 web site having the same ip, in iis8?
how to add a second ssl certificate to the same server for two different web sites?. How to setup a second ip for the second web site considering that the server is balanced?
more information:
i've ...
-1
votes
0answers
29 views
Non-Port 80 Web Server & Pretty URLs [closed]
This is a "Blocked Port 80" related question, but maybe something a bit unique. I've yet to find a good answer. It's more academic than anything as I know running a production server at your house is ...
0
votes
1answer
79 views
Do I really need to configure my server with a public static IP address?
I'm setting a few sites up and many email accounts for a new company so I wanted to save some money as I already have a server running Windows Server 2008 R2.
I have a static IP of 80.229.46.115 and ...
-2
votes
0answers
31 views
VPs with share ip? like share hosting? [duplicate]
I want to make a vps center to provide vps for users.I want to assign ip to vps BUT I wonder is it possible for vps centres to assign share ip to all vps? like share hosting
-2
votes
0answers
57 views
How is IP traced actually? [closed]
I was always wondering how IP trace works.
I mean there are so many IP addresses over the world and when I request xxx.yyy.zzz.www for example, how the network exactly finds the (best) connection ...
-2
votes
1answer
57 views
is it possible to make some vps with a single share ip using linux? [closed]
I want to make a vps center to provide vps for users.I want to assign ip to vps BUT I wonder is it possible for vps centres to assign share ip to all vps? like share hosting
2
votes
3answers
251 views
How is DHCP request message broadcasted?
The broadcast address of DHCP request message is 255.255.255.255. Will this request message go through routers? It seems to be yes as the destination address is 255.255.255.255. However, it does not ...
1
vote
0answers
20 views
How to configure Zenoss to list devices by name instead IP address automatically?
I've set Zenoss 4.2.3 to get devices from our entire network from all subnets (INFRASTRUCTURE -> DEVICES). But it returns me the device list only with the IP address, it doesn't obtain the hostnames ...
-1
votes
1answer
30 views
a special case about subnet mask calculation [duplicate]
I have an IP addresses 192.168.2.0 and a subnet 192.168.1.0/10
And I have two questions. (1) Is 192.168.1.0/10 legal? As the 9th least significant bit is not 0.
And if (1) is true, does 192.168.2.0 ...
0
votes
1answer
28 views
Installing ipmasq in Ubuntu [closed]
Looking to do some netowrk interface sharing on my Ubuntu 13.04 server. I'm following this guide: How to Setup Internet Connection Sharing in Ubuntu
I've installed dnsmasq but Ubuntu can't find ...
0
votes
1answer
41 views
Vpn with ip alias
I'm looking for this information on google from days with no success and hope to find somebody that knows the answer here.
I have a dedicated server with a real IP configured on eth0 and a secondary ...
0
votes
1answer
36 views
Ping Interconnected PCs End-To-End
I have the following network topology:
[PC 1] - - - [PC 2] - - - [PC 3] - - - [PC 4]
Each machine is connected via a crossover cable. I can ping from PC 1 to PC 2, but how can I configure things so ...
7
votes
2answers
673 views
How do I move static IP address from one ISP to another
We have a linux server pointing to a static IP address from one major ISP. We recently changed that ISP to a new ISP and I am wondering if there is a way we can move the static IP address to work ...
0
votes
1answer
34 views
Can't establish connection between my VPS and itself
I have a VPS with two IP addresses: 74.117.158.92 and 74.117.159.204. If you ping them, you'll find they are both responding. I can also ping google.com etc. from either of them.
But I cannot ping ...
1
vote
2answers
43 views
Identifying SNMP packet from just the IP header
Is it possible to identify an SNMP packet from just the IP header?
-2
votes
0answers
18 views
Plesk control panel access [closed]
One day I noticed that someone has logged in my server from a user account which should not happen. I changed passwords and so on... I am wondering what the downsides are having 'IP access restriction ...
0
votes
1answer
85 views
apache httpd.conf subdomain setting cause 500
I am trying to adding a subdomain for my mobile site. But when I add below code into my httpd.conf, i could open m.domain.com in my browser, but failed all www.domain.com with 500 Internal Server ...
0
votes
1answer
65 views
I cannot access my websites but everyone else can [closed]
About 4 days ago I could no longer view my websites from my IP address. I can see it through proxies and other IPs, everyone else sees it fine.
I've contacted my host, they say I'm whitelisted and ...
1
vote
1answer
23 views
What is an anycast with controlled access
I'm interested in how anycast works. There are two ways how a transmitter sends a packet to the receiver. I'm interested in how anycast with controlled access works. How a destination host is chosen. ...
0
votes
1answer
42 views
Linking IP to a domain name
This is a really newbie question but I need to ask in order to solve a doubt.
My situation is the classical one: I bought a domain name and I want to link it to an IP address. The easiest thing in ...
0
votes
4answers
93 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 ...
-1
votes
1answer
26 views
How to add subdomain on Windows Server 2008 Standard?
I have two public IP. One is mapped to www.ezampal.com by a technician. I want to map subdomain.ezampal.com or www.subdomain.ezampal.com to another public IP. I'm using Windows VPS.
How to do that?
...
-3
votes
1answer
243 views
Determining the source of a SYN_flood given a file on cloudShark [closed]
I'm having trouble determining the IP's associated with a SYN-flood style ddos attack carried out on a system. How can i determine which ips are the culprits? i initially looked for SYN -> SYN, ACK ...
-1
votes
2answers
77 views
Correctly configure nameservers with cPanel
I just bought a VPS with cPanel/WHM. My hosting provider gave me 3 dedicated IP addresses with my plan. I read on the internet that I should use 2 IPs for my nameservers and the other one as the main ...
0
votes
2answers
76 views
How to access localhost with an internal IP address when outside of network [closed]
I have my development environment on my local system with XAMPP(Windows 7). During dev. work I use my system's IP address (i.e 192.168.XX.XXX of Internal Network) when I am inside the network, it ...
0
votes
1answer
91 views
Virtual network for reproducible tests
Im developing a software product that uses networking features like device bonding an multi-homing protocols. As with any protocol development, test-code needs to take latency, package-dropping etc. ...
-5
votes
0answers
40 views
Why is my local ip address not starting with 192.168…? [closed]
I am connected with my university network and we have ip addresses starting with 10.10.... My question is, since our college network is a local area network, why dont we have ip addresses starting ...
0
votes
0answers
37 views
How long does an assigned IP address from your broadband IP last and why? [closed]
For cable/FiOS or other "permanent" internet connections (i.e. not dial-up), how long does your IP address remain the same? Is there any published/known policy from an ISP that describes when and why ...
-1
votes
0answers
30 views
Redirecting domain to another domain
I got a dynamic IP, which is changing nearly everyday, but my provider gives me a x.y.z.com which is pointing to my IP when it changes. I also got a domain balka*.com and I want to redirect it to ...
0
votes
1answer
23 views
How to access multiple IP-s of host from virtualbox guest windows
I have a linux host with virtualhosts on 127.0.0.1 and 127.0.0.2 and 127.0.0.3 (the reason is that I need multiple domains with https) and I would like to access them from virtualbox in a windows ...
1
vote
2answers
59 views
No IP address on Windows SBS 2008
We have a strange problem in our Windows SBS 2008 and it just came over a night.
The problem is that Windows says that we are not connected to any IP4 or IP6 network but it recognises that the network ...
0
votes
1answer
48 views
Find IP addresses with most connections on system
I am currently experiencing some attacks on my OpenVZ server (CentOS 6.3 64bit), which is saturating the public ethernet interface (currently accessing SSH via the private interface).
Is it possible ...
-2
votes
0answers
31 views
Setup website with public load balancer and private application servers [closed]
I currently have a website which i have configured like the following
Public IPAddress1 - Runs apache load balancer, multiple instances of tomcat app server, database.
I would like to split this ...
1
vote
1answer
80 views
Static IP Addresses and OpenStack
I'm working within an environment where static IP addresses are the prescribed method. I have a set of IP addresses [about 10] and I'm trying to get that to be the pool of IPs that OpenStack can use. ...
0
votes
3answers
102 views
Using Network Interface With Multiple IP Addresses
If I have a network interface with multiple IP addresses bound to it can I set which IP address on the interface my server uses? It sees to be set to use the first IP address I added to it.
Info: ...
0
votes
1answer
102 views
Datacenter ISP wants to assign an IP range to an existing ip address that we already use
I have a question about the setup of our data center regarding a new IP range.
The situation is as follows.
we own/use a range x.x.x.x/28 we got it already from our data center.
we have 16 addresses ...
