IP address is a numerical label assigned to each device participating in a computer network that uses IP for communication.

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How To Assign Permenant Public IP to a VM in Azure, So Even If it Shuts Down and Boots Back Up It Does Not Lose Its IP?

I have read the Azure documentation which explains how to allocate a reserved IP, etc. Exactly what command do I need to run from Azure command prompt to do this to an existing VM?
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0answers
33 views

How do I recover permissions after changing the LAN addresses of a network?

Server 2012 R2, SharePoint 2013, TFS 2013 update 4 I recently changed some hardware and the LAN addressing of my network. I went from 192.168.2.x to 192.168.3.x. After I did that, access to ...
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2answers
18 views

AWS create an alias for my EC2 instance IP

I'm not expert in anything related with networks. I've reasearched through Internet but I'm not able to get with the solution for what I need. It's simple. I've bought a domain in GoDaddy.com and ...
0
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0answers
20 views

why is ip address sometimes missing from Security audit log Source Network address for log on audit failures?

Most of the time when someone who is not authorized attempts to log on to my Windows 2008 R2 web server, an ip address is displayed. With the ip address, i can easily block the external host from ...
2
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2answers
725 views

Giving Virtual Machines in Xen their own IP Addresses

Installed Xen on a server at home, recently moved it to a data center. Worked fine with DHCP behind my router, with each virtual server and the dom0 getting its own IP address. At the data center, ...
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0answers
24 views

Many lines with 3 asterisks in traceroute [closed]

I'm trying to troubleshoot a recent network problem of mine, whereas occasionally I cannot connect to some websites or it takes forever. I tried doing a traceroute today in order to learn more about ...
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1answer
25 views

Disable logging ip adress to access.log in lighttpd

I have my webserver configured with lighttpd/1.4.31. About 80% of all entries in lighttpd's /var/log/lighttpd/access.log consist of my own ip address. I would like to disable my ip address logging ...
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4answers
53 views

is it safe to change the RDP port?

My web server is in the U.S. and it is accessed from my home in Canada using Remote Desktop Connection, standard port. Unauthorized persons have tried to log in from many different countries, some ...
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4answers
95k views

What's the difference between ip address 0.0.0.0 and 127.0.0.1?

I do know that 127.0.0.1 ~ 127.255.255.254 are the loopback IP addresses for most modern operating systems and we could use these IP addresses to refer to our own computer. But what's 0.0.0.0? It ...
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1answer
912 views

LAN->LAN IP translation (for TortoiseSVN + Artifacts + Buffalo router)

Here's my scenario: I've got a VisualSVN server on my main dev box @ home. I'm also using Visual Studio 2010, TortoiseSVN, VisualSVN client (for source control), and Versioned 'Artifacts' (for bug ...
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1answer
40 views

Configuring DNS server on Windows Server 2012 R2

I have successfully setup a DNS server on my local virtual machine and its running and I've mapped 2 public IP's with my domain name (****.com). I also created reverse lookup zones which basically map ...
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1answer
29 views

Does Google bill for the IP addresses that are bound to stopped VMs?

Any idea whether Google bills for IP that are attached to stopped VMs, and is it the same rate as for an unused IP? (which actually makes sense).
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0answers
46 views

Linux: Same static IP configured for all NICs

I am shipping some servers out to remote colo sites. I want to configure them so at the other end any port can be lit-up and the boxes will be good to go. I had originally been planning on bonding ...
0
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2answers
94 views

How to tell if someone is trying to use my IP Address?

I use a relatively low-cost host for my personal server, and occasionally I get a rash of downtime alerts. These are all from today. If my host were to ("accidentally") assign my IP to someone ...
0
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1answer
63 views

with windows remote desktop is it worth turning off TLS to block by IP address?

I have been assessing this software for securing our cloud server's RDP connection. The problem is, it requires you to use RDP encryption, without TLS. This is because with TLS the IP addresses are ...
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2answers
1k views

adding 2nd private IP on AWS EC2 instance

I am having problems adding a 2nd IP on AWS EC2 instance. I am running Ubuntu 14.04. I already tried this: a) Right clicked the instance and added a 'private IP' from the manage Private IP. b) ...
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0answers
15 views

Custom IPv6 stateless autoconfiguration suffix [duplicate]

When a router announces an IPv6 prefix via Router Advertisements, a host can use SLAAC to automatically derive the remaining bits from its MAC and use the combination as its globally routable IPv6 ...
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1answer
41 views

Unable to resolve IP Blacklisting with Spamhaus

I have a website which is currently assigned an IP 64.XXX etc from my hosting provider. This IP when looked up comes up clean with all Blacklist checks that I run. However, I am also being assigned an ...
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2answers
4k views

How IP addresses are mapped to Autonomous System Numbers?

How are IP addresses mapped to Autonomous System Numbers (ASNs)? Is there a reference database for it? Then how are these Autonomous Systems geographically located?
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3answers
2k views

how to resolve connection problem at network

i have this problem connection: Unable to complete network request to host "xx.xxx.xx.xxx". Failed to establish a connection. No route to host could not connect to DB can you tell me how to resolve ...
0
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1answer
104 views

Why are there many domain names resolving to IP like 8.8.8.8 and many other? [closed]

I have been wondering why are there many domain names assigning public address that already owned by other (apart from shared hosting/ip), for example hundreds or thousands domain names assigned (or ...
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2answers
2k views

Google IP Address Ranges for incoming SMTP [duplicate]

Essentially I'm answering my own question here, but want to provide this info to anyone else who might need it. I need all the valid IP address ranges for Google Apps mail servers. I'm configuring a ...
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0answers
67 views

How to enable my clients use a custom domain name

I want people to be able to use a custom domain name to access an application I have hosted on my server. From what I have read, people can do this by changing the A Record of their accounts to my IP ...
0
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2answers
206 views

I've changed ISP, now www access to my website is not working, but HTTP is

I've inherited a company's IT position, so I was not in on the original configuration. We have recently changed our ISP (several months ago). Our Domain is hosted by Network Solutions and their A ...
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0answers
40 views

Ban IP doesn't work with forwarding [closed]

I use à VPS like a bridge for an other server. I use apf-firewall and this file /etc/apf-firewall/preroute.rules for forward somme port one the other server. This is the end of the file: iptables ...
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3answers
129 views

Executing a software on another network interface?

I have created 3 virtual interface on a Linux system, using different IP address. I have a software doing requests to a server but it use the default interface, eth0. Is it possible to execute a ...
0
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1answer
66 views

How to eliminate Security Warning message on EC2 Instance wizard

I've set up the AWS Free Tier, and configured a Windows Server. I took the defaults pretty much. There was 1 security group it created with 3 security rules it provided by default, and I didn't ...
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1answer
56 views

SSL connection to server ip address

I have a server which equipment at remote locations on private networks connect to via the internet using SSL. An SSL Certificate for the domain name of the server is installed. I have a number of ...
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6answers
1k views

I have a Cisco Catalyst 2940 and want to connect to it via the network. How to find its IP address?

Since my computer has not serial port, the serial cable is of no help. Does the Catalyst 2940 acquire an address via DHCP? At least my DHCP server doesn't show any address which has been requested ...
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2answers
647 views

Weird Requests Being Sent to My Server [duplicate]

I have written a server in C# for windows and it works fine. A week back I setup a dynamic domain name with No-Ip.com and now my server serves pages at the address nabeel.ddns.net. I was viewing my ...
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1answer
91 views

Select source IP on windows server 2012 with multiple IPs on 1 NIC

I have searched a lot for a solution to this case but I couldn't find any. So, any help would be appreciated. I have a windows server 2012 with 1 NIC having 2 IPs bound to it 37.188.120.8 and ...
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1answer
65 views

calculate reserved ip address based on mac address

Is it possible to calculate ip address based on mac address for isc-dhcp server? For example: 'aa:aa:aa:aa:aa:x' => '10.10.10.x' I have following in dhcpd.conf: subnet 10.10.10.0 netmask ...
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2answers
60 views

Http Requests: how to identify a machine using multiple IP addresses

I have an http server. Is it possible to identify a machine, which is making http requests to my http server using different IP addresses? In other words, is it possible to identify a machine, by ...
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11answers
27k views

Windows Server 2008: specifying the default IP address when NIC has multiple addresses

I have a Windows Server which has ~10 IP addresses statically bound. The problem is I don't know how to specify the default IP address. Sometimes when I assign a new address to the NIC, the default ...
0
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1answer
92 views

how to change the ftp passive mode ip address for haproxy work as reserve proxy?

I have an ftp server in LAN, address is 192.168.1.11 I used haproxy is because lots of other service need it I put haproxy on my 192.168.1.1 the same machine of our soft-route(ubuntu 14.04) My ...
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2answers
704 views

How to obtain incoming ip address from virtualbox

I setup a http server (apache) under VB and forward the port from the host using the available tool in VB. My VB network is NAT connected with the host. However when doing this the access log of http ...
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1answer
251 views

DNS errors after changing nameservers for Cloudflare

I don't know if this is the right place for my question, but I have a problem with my DNS/nameservers after changing the nameservers. I'm not sure if it is a problem at my side or at my webhost. I ...
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17answers
45k views

Shell Command for Getting IP Address?

Is there a bash command to find the IP address for an Ubuntu box? I need to find the IP address so I can ssh into the machine later.
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2answers
55 views

how to change the special port output source address?

I want to change the my datapackage from port 25 to another internal address(192.168.2.253). iptables -A OUTPUT -o em1 -p tcp --dport 25 -j SNAT --to 192.168.2.253 But I get the output is: ...
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0answers
30 views

How can you calculate IP address subnet ranges? [duplicate]

If you're given: Number of needed subnets: 2 Network Address: 195.223.50.0 I can answer the following: Address Class: C Default Subnet Mask: 255.255.255.0 Custom Subnet Mask: 255.255.255.192 ...
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1answer
38 views

One SSL certificate for load balancing amazon instances

As the title says I want to have one SSL certificate for multiple instances in amazon AWS. The multiple instances are connected to the internet through an load balancer. To make an SSL certificate and ...
12
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4answers
15k views

Block range of IP Addresses

I am getting bombarded with attempted hacks from China all with similar IPs. How would I block the IP range with something like 116.10.191.* etc. I am running Ubuntu Server 13.10. The current line ...
6
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7answers
4k views

Static IP Address assignment vs DHCP address assignment

I manage a small-ish network that consists of less than 70 nodes. The previous system administrators opted to have a dhcp server and manually set dhcp addess. I have opted to rather use dhcp ...
3
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4answers
15k views

Can I use nmap to discover IPs and mac addresses?

When I need to locate the IPs of devices by their mac address on a Windows system, I normally use Advanced IP Scanner (from radmin.com) to scan the network, then I use arp -a to list the mac ...
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4answers
10k views

Finding the first and last address of a block of IP addresses with subnet mask

I am not sure if this is the right place to make this question but I thought this is one of the most appropriate SE's site to make a question on networking. Please move it to other more appropriate ...
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1answer
601 views

Plesk 10 Postfix with multiple IP adresses and SSL certificates [closed]

We are currently running a root server with Debian 6 and Plesk 10.4.4. We have some virtual hosts using one IP adress (shared) - e.g. example1.com - and another virtual host using a dedicated IP ...
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4answers
1k views

CIDR Ranges for Everything except RFC1918

I'm looking for a list of CIDR blocks for "The Internet", i.e. everything from 0.0.0.0 to 223.255.255.255, excluding RFC1918 address space of 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16 (yes, I know ...
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0answers
47 views

L2TP daemon server multiple IP

I have VPS with 3 public IP - Debian 7. I would like to have 3 L2TP damemons (one ip each) NATing traffic to each ip. Something like this l2tp_multiple_public_ip_diagram. I have set up l2tp daemon for ...
3
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10answers
9k views

Use first or last free IP for the default gateway?

Please assume a simple LAN on 192.168.100.0/24. Would you configure the default router on 192.168.100.1 or 192.168.100.254 and why? Thanks
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1answer
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IP address detection through firewall [closed]

Suppose my computer connections are filtered by a firewall on which I have no information and no control. Will the administrators of the network will know which websites I did visit thanks to their ...