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1
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2answers
554 views

Why my website is not accessible with the www prefix

I know this is an old, and "amateur" question but I see myself in the need of making this question since I truly don't know whats going on. My website is not accessible with the www prefix... ...
1
vote
0answers
91 views

How to change SAS address on Expander

I have the following setup - two supermicro backplane attached to one controller LSI SAS 9207-4i4e and unfortunately cannot access the disks, during boot there are disks only in one backplane, the ...
0
votes
1answer
116 views

Adding a secondary static IP address to CentOS

I'm trying to add a secondary static IP address to CentOS via SSH. Server is unmanaged dedicated without a web control panel. I've made an alias for the device but it's not working. EDIT: Actually ...
-3
votes
2answers
167 views

Linux Find Mac of IP address that connects to server [closed]

On Linux , How Can Find Mac of IP addreass of any user / computer that connected to server ? we use Centos + Iptables .
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votes
3answers
225 views

What are the IPv6 Public and Private and Reserved ranges [duplicate]

I just want to know what are all the public IPv6 ranges which ISPs or other users can use? Also need a list of addresses which can be used in private networks and also the list of addresses which ...
0
votes
2answers
40 views

Session automatically resolving to secondary IP

I am using Debian 6 - 64-bit and this is what my /etc/network/interfaces file looks like auto eth0 iface eth0 inet static address PrimaryIP gateway X.X.X.X netmask 255.255.255.0 auto ...
0
votes
5answers
207 views

Moved IP addresses to other server, no network internally anymore

I have had this server set-up: serverA ip 200.200.200.100 ip 200.200.200.101 ip 200.200.200.102 ip 200.200.200.103 Due to circumstances, I had to move away ip 200.200.200.102 and ...
1
vote
1answer
165 views

How to block outgoing traffic of the mac address of one of the server's own NIC with ip tables?

i have a server with 5 nics connected to a switch, and running GNS3 (cisco router emulator). I need to block, in the server, the packets originated by the nics at layer 2 level (the nics are not ...
-3
votes
1answer
56 views

Ip Conflict Event 4199

Dell server, after rebot I am not able to use same ip address. To bring up it again I have changed the IP. Error: The system detected an address conflict for IP address 10.x.x.x with the system ...
2
votes
1answer
58 views

How can I deny a bind lookup on a single IP address?

I am running a BIND installation as a simple RBL server. The problem I am running in to is that if I have listed a block of IP addresses like: *.0.0.10.rbl.mydomain.net. IN A ...
0
votes
2answers
101 views

Assigning a static IP address to DHCP network

I would like to add a static IP address to computer on a DHCP network. If I reserve an IP address for this computer does this result in a static IP address?
1
vote
1answer
270 views

Global Address Book, OAB issues with Microsoft Exchange 2010

Previous network admin moved everything over from exchange 03 to exchange 2010. I've noticed since that was done the global address book or offline address book doesn't pull up any of the new users ...
1
vote
1answer
161 views

Add IP addresses on CentOS 6

I have a 12 IPv4 addresses that I need to add to a CentOS 6.3 machine however those 12 IPs are spread out among 3 different subnets. I know how to add additional IPs when they are on the same subnet, ...
-1
votes
3answers
703 views

MAC Address Changed?

I was wondering if the following MAC address is a valid one? 00:13:74:00:00:00 We have an automated network registration on the system whereby users can plug in their computers and register on the ...
-3
votes
2answers
109 views

Changing the IP address with a name [closed]

I have a web server (xampp) in a particular PC running on my LAN, and I added the following line in the 'hosts' file : 127.0.0.1 mysite. Then, in another PC connected to the LAN, I'm trying to ...
1
vote
1answer
445 views

Rebooting a guest causes IP address conflict

We've been having issues while setting up a vSphere cluster, using 7 ESXi hosts, and running about 74 guests that are amongst the mess. Our issue is that when we reboot a guest, Windows or Linux, ...
-2
votes
1answer
1k views

Multiple IP addresses in wireshark show the same mac address. What's going on?

I'm seeing an issue with a computer (running an embedded OS) transmitting over a network to an XP embedded machine. The computer has 10 physical ethernet ports, 9 of which are on this network. I ...
0
votes
1answer
28 views

How can I set a custom allowed email adress in the exchange 2007/2010 policy?

A normal policy looks like: %s.%g@southeast.contoso.com This allows emails in the format [lastname].[firstname]@southeast.contoso.com. But I want to allow a custom address like ...
0
votes
2answers
317 views

Local Network Windows Port Address Translation

We have many legacy applications that can only send reports via printing. We have an application called RPM that can receive these print jobs and convert them to a more useful medium (e.g. PDF ...
-4
votes
2answers
366 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 ...
0
votes
2answers
42 views

Setting http://domain and http://ip to show different directories

Can someone tell me what httpd.conf settings I need to acomplish this? When in browser I access http://IP I want to show: /var/www/html/ And when I access http://domain I want to show ...
0
votes
1answer
245 views

How to enable DHCP address release with dhclient

We have a subnet with a couple of hundred virtual machines that: boot up do some short heavy computational task and shut down. The average life of a vm here is about 20 minutes. It's critical ...
0
votes
1answer
160 views

Postfix connection cache / address verification probes

Is Postfix connection cache also applicable for address verification probes? My setup of 2 frontends with 1 backend sometimes runs into trouble under high load. Frontends verify recipients on the ...
2
votes
3answers
3k views

IP address of virtual server?

I have a virtual server (shared hosting), with a domain name (and several sub-accounts, each one a separate site also with its own domain name) I was wondering if there was a way to find out the IP ...
3
votes
3answers
2k views

CentOS Wrong Outgoing IP Address

I have a Centos 5 box with a sub interface: ifconfig eth0 10.1.1.1 255.255.255.255 ifconfig eth0:1 10.1.1.2 255.255.255.255 The netmasks need to be 32bit in the environment this server is in. So ...
3
votes
2answers
252 views

Outbound IPv6 Trafic Fails

My hosting provider has supplied me with global static IPv6 for my machine. It appears that auto configuration has been successful and I can successfully ping my machine and tracepath6 appears to ...
3
votes
2answers
2k views

Allowing traffic only from a specified IP addresses using iptables

I have a dedicated server (which I only use a lab/testing environment). On the server CentOS 5.6 is running and it is functioning as a KVM host. To secure things a little I want to do the following ...
1
vote
4answers
989 views

Why is this China IP hitting my web site?

I have a web site that uses a couple hundred domain aliases, including franchise-dallas.info, franchise-delaware.info, and detroitfranchise.info (see more below). I have been getting ten to twenty ...
0
votes
1answer
157 views

configuring external block of IP addresses

I have a business DSL through FairPoint. With it, I have a block of 5 IP addresses. I've done some googling and spoken with FP tech support. Perhaps someone that's more knowledgeable than I can ...
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votes
1answer
343 views

Postfix is sending mail with wrong domain

I've managed to setup a simple mail server that is working on every level but with one exception: when I'm sending email to an external email address, the receiver is seeing it as coming from ...
1
vote
3answers
296 views

Display maintenance site to requesters based on their IP address

I would like to set a special configuration in our apache web server. I would like to display sites to the users according to their IP addresses. We plan to upgrade our web sites. During the upgrade ...
1
vote
1answer
328 views

Where does ISP obtain their IP address from in order to connect to internet?

To my little knowledge, my home computer can connect to internet because the ISP assigned a dynamic IP address to my router. Then through NAT, the router assign an dynamic IP address for my home ...
1
vote
3answers
233 views

Setting up IP addresses in Linux networking

I am running Ubuntu Desktop and Ubuntu Server editions on two separate VMs. For the desktop I have set network adapters: Adapter 1: internal network called intnet Adapter 2: NAT Server adapters: ...
0
votes
1answer
169 views

Forward Application IP/host to localhost (windows)

I'm working on a windows XP / win 7 environment and i have an application (game) that connects to an static hostname and ip. It does have a connection to 2 ports (ports 5000TCP&UDP and 6000TCP). ...
1
vote
4answers
749 views

Show Ubuntu server IP Addresses

I'm into a little dilemma here. I bought a server, running Ubuntu, having 255 IP addresses and now I need to see them. I've searched the internet before posting here and found out that the command "ip ...
1
vote
2answers
491 views

Mac address changed after windows automatic update?

My computer and that of a collegue have a changed their adress when booting up this morning. The only thing I can think of right now is the windows automatic update which has kicked in tonight to ...
3
votes
4answers
377 views

Linux: disallowing access to a network when the user has a static-defined IP address

In my network I run dhcpd3 set up to assign IP addresses only to specific MAC addresses. It works wonderfully, I even integrated it with bind9 to automatically create direct and reverse DNS hostnames ...
1
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2answers
696 views

SIP Server with dynamic public IP address and dyndns

Is it possible to run SIP server with dynamic public IP address and dyndns? The question is what happens when IP address is changed and DNS is not yet updated.
0
votes
2answers
262 views

IP Address Restriction

I need some technical help regarding IP address restriction in IIS7. My problem how i can block all IP's except following IP address ex:- 69.59.196.212 in my IIS7. I want give access max 4-5 IP's ...
0
votes
1answer
248 views

Using numerous IP addresses in a browser in linux

I own a dedicated server than runs Debian Linux. I have 64 IP addresses configured on the machine. I am looking to open a page (just has to access it with lynx or anything to read) with one of the ...
2
votes
1answer
2k views

Address (url) forwarding with Vyatta

Got this kind of noob question i suppose. I got this very basic network setup and need help to set up some address forwarding. As seen in my illustration below all traffic enters via the eth0 ...
1
vote
2answers
2k views

Does CNAME (Canonical Name record) override A (address record)?

If I have an address record setup as follows... www.mywebsite.com 111.1.1.1 *.mywebsite.com 111.1.1.2 and a CNAME setup as follows... beta.mywebsite.com 111.1.1.3 Would pinging ...
1
vote
1answer
853 views

Add shared contacts to Outlook 2007 address book

Hello we just upgraded from exchange 2003 to 2010. 2010 seems to be pushing people to stop using public folders. Public folders had the nice feature that you could see the contacts of the public ...
1
vote
3answers
1k views

Bind an ip address to Postfix as outgoing ip

Is that possible to bind all available public ip addresses on a server to one Postfix instance as its outgoing ip pool and let it choose a random ip or specified ip from the pool each time it sends ...
2
votes
2answers
1k views

Configuring Cisco ASA 5510 to assign static IP address based on MAC address

We have a CISCO ASA 5510 at work. We want to configure the same such that it can serve specific IP addresses based on the MAC address of the clients. Any help would be greatly appreciated. Thanks in ...
3
votes
2answers
9k views

How do I create a virtual IP address?

i am a student so i am pretty new at this but i am making a web cluster with two web servers so that if one server fails the website still stays up. my question is how do i assign a virtual IP address ...
1
vote
1answer
354 views

Change Address Range Windows VPN

I am wondering how to change the Address Range for the VPN connections on Windows RRAS.
1
vote
2answers
2k views

IIS6 is leaking IP address in header

We are working on obtaining PCI compliance for our e-commerce website with securitymetrics.com One last item that keeps coming up is as follows: Synopsis : This web server leaks a private IP ...