The IP (internet protocol) is a protocol for transmitting data over packets ("datagrams"). It is the primary protocol of the Internet. "IP" may also refer to an IP address, the numerical address assigned to an IP-capable device.
2
votes
2answers
315 views
Linux: Disable loopback interface from kernel
I know it is possible to bring down lo interface by doing ifconfig lo down. But is it possible to configure the kernel that the lo interface will simply not be available? Please note that I don't want ...
0
votes
0answers
32 views
windows host file a VM machine
I have a centos installed as a guest OS on my windows7,
In Centos there is apache installed
In windows's host file, I add in
192.168.1.11 mynet.com
the IP is the guest OS 's IP and in windows, ...
0
votes
2answers
37 views
What happens when connecting to local server
Suppose I have a web server and my IP is a.b.c.d (not the loop back address). When I launch the browser locally and point at a.b.c.d, what actually happens at packets level? Do the ip packets goes out ...
2
votes
0answers
101 views
What is a dynamic way to connect to a virtual machine's webserver from its host machine? [closed]
As a web developer, what is the most efficient (automated) way to connect to a virtual machine (VM) running a development webserver from its host machine (the machine running the VM) when you do not ...
0
votes
0answers
128 views
Using QoS to prioritize IP addresses
I have a Western Digital N900 router. I was hoping I'd be able to throttle users based on their MAC address with it, which isn't possible sadly. Seems simple in principle though, duh. The battle ...
3
votes
2answers
791 views
IP Address history [duplicate]
Possible Duplicate:
Find all past desktop IP addresses
I have a bunch of windows computers and due to a monitoring need I need to check their (static) ip address history.
When the user ...
1
vote
2answers
49 views
IP Address of the systems in the Network In Linux
I am looking for a linux command that can be used to find the IP addresses of the different systems connected in the same network.
All the systems are running Fedora 14.
Thanks in Advance..
0
votes
2answers
234 views
Using fedora 17 commandline 'mail' program cannot send to hotmail
I am trying to use the console in Fedora 17 to send an automated email to myself.
I run this:
echo "email content" | mail -s "blah" my_email@gmail.com
It works fine, google treats it as a spam ...
0
votes
2answers
726 views
How to block IP address that's outside router's DHCP IP range
I've found some ip address that's not in my DHCP range.. which is weird because
I set my DHCP range 192.168.2.xxx but these ip have 172.xxx.x.xxx or 192.168.1.xxx range
I want to block them, how? I'm ...
-1
votes
1answer
455 views
Can't get my Raspberry Pi to keep a static IP
I recently got given a Raspberry Pi and I would like to be able to remote into it using puTTy from my laptop so I don't have to sit next to my tv with a keyboard and mouse to use it. I am able to get ...
2
votes
2answers
253 views
Can a router reduce TTL value by more than one?
Wikipedia (Time to Live) states:
The time-to-live value can be thought of as an upper bound on the time that an IP datagram can exist in an Internet system. The TTL field is set by the sender of ...
1
vote
1answer
186 views
Routing Between Intranet and Internet
I have 2 ADSL Modems:
One is for intranet connectivity, the other is for accessing the internet.
I connect the intranet to my PC on network interface "Local Area Connection", and connect to internet ...
2
votes
3answers
117 views
Are SSH protocol headers sent in the clear over a client-server connection?
I know routing information is always sent in the clear (oversimplification, but bear with me) so in a scenario where there exists an SSH tunnel between a client and a server using non-standard ports, ...
0
votes
3answers
252 views
IPv6 address is not working in Ubuntu
Telnet connection with echo service succeeds for localhost and 127.0.0.1 host names, but fails with ::1 host name:
alex@u120432:~$ telnet localhost 7
Trying 127.0.0.1...
Connected to localhost.
...
0
votes
1answer
45 views
Separate IP for separate browsers
Is it possible to use 2 different IP in 2 browsers? I would like to surf in Chrome with IP address A and in IE with IP address B.
If this is possible: how?
-1
votes
2answers
90 views
How can I make an IP address always resolve the same MAC address on a Mac?
I am doing some config with a flashed router, someone has provided me with an example using Windows, but I am using a Mac. So, I need to execute the command below on a Mac:
set neighbors "Wireless ...
0
votes
1answer
212 views
Network IP, Network ID, Subnet ID, Node ID, Host ID
I read an article at this Link and got very confuse, If you take a look at the link you can see thoes two lines:
This is the first part of the article that got me confused:
1) It tells us which ...
0
votes
2answers
136 views
What does this Ping answer mean?
This is the output from an attempt to ping from a Windows 7 computer with an LTE modem plugged in.
The LED on the device tells me that the device has a data (IP) connection, but the Windows network ...
0
votes
1answer
2k views
Why are all google website suddenly giving untrusted certificate warnings in my Firefox v10?
Today, I am suddenly getting the untrusted website error for all Google websites, but not for any other. Internet Explorer gives no such error. Reboot of this Windows 7 computer does not help.
Is ...
-1
votes
1answer
79 views
How to connect to my lan from the outside (e.g. internet)
I want that my router will see me as an inside the LAN host when i access him from an outside IP that is not in the LAN so i can access my printer and storage device that are connected to him. I can ...
2
votes
1answer
324 views
Hiding my location to websites with region-specific languages/content
I just went to download Microsoft Secority Essentials and it enraged me as it redirected me to a site in my home language and not the default English. If I go to America, I don't want them to speak ...
1
vote
1answer
111 views
Rule of thumb for TCP upstream bandwith requirement
In TCP, the recevier every now and then acknowledges the receipt of sent packages. Therefore to achieve a specific downstream bandwidth there is always a minimum upstream bandwidth required.
What I'm ...
8
votes
4answers
2k views
Why can a network address not be a valid host address?
So... I have studied for CCNA and such and been working with IP networking at the least the past 8 years or so. I have always seen and been told that the network address for a subnet is not a valid ...
-7
votes
1answer
991 views
Changing IP every sec with Firefox [closed]
I looking for ip changer what is faster than PROXY (i tried Elite Proxy Switcher + Firefox add-on, but it's too slow. I set automatic switching to 4 sec and yes he change the ip every 4 sec however ...
0
votes
1answer
51 views
TCP/IP problems after uninstalling software
I installed some type of Bit-Torrent software. I used it for a day and then I UN-installed it. But, now I have no IP on that computer --- can not even get on my local NAS LAN. I tried reinstalling ...
0
votes
1answer
360 views
VPN server IP address [closed]
If I use VPN service when I get fix ip address or it's dynamic?
Secondly, can I change the fix VPN ip or it's impossible?
I want to change my ip every second.
Thanks!
0
votes
1answer
92 views
Are static routes from an ISP to a company network classful or classless?
The background to my question is a recent Cisco networking skills exam, where one requirement was to set up an ISP router with a static route back to the company's border router. I used a Class B /16 ...
5
votes
2answers
4k views
How does circumventing IP restrictions through DNS work in the case of hulu.com?
I just heard from an australian guy that it is possible to watch hulu.com from Australia (which is actually restricted by country IP checks) by using certain DNS servers.
Now I was wondering, how ...
561
votes
3answers
115k views
Transatlantic ping faster than sending a pixel to the screen?
John Carmack tweeted,
I can send an IP packet to Europe faster than I can send a pixel to the screen. How f’d up is that?
And if this weren’t John Carmack, I’d file it under “the interwebs being ...
0
votes
1answer
99 views
Is it possible to use a static IP assigned by my ISP for an offsite web server on a VPS (different ISP)?
I have a web server on a Virtual Private Server with a hosting provider. Unfortunately, they are really stingy with IP addresses and I need to run several SSL certificates on my server, so I will need ...
0
votes
0answers
46 views
External ip not working through internet
I have my modem with 4 ports. 1 is linked to the router while 1 is linked directly to my computer. Now I can access my webserver with some 42.2.xxx.xxx:xxxx in my computer. But my friend reported to ...
0
votes
1answer
85 views
Which MAC address is the right one?
Result by 'getmac':
C:\>getmac
Physical Address Transport Name
=================== ==========================================================
72-03-C6-48-59-34 ...
1
vote
0answers
33 views
Route everything from some VLANs to a tunnel
I've set up a tunnel:
$ ip tunnel add mytunnel mode gre remote x.x.x.x local y.y.y.y ttl 255
$ ip link set mytunnel up
$ ip address add 172.17.10.2/30 dev mytunnel
$ ifconfig mytunnel up
Now, I can ...
0
votes
2answers
40 views
Change Network IP Pool
So I have this device that expects a server to be placed at this address 192.168.0.12, and I have a network running on these addresses 192.168.1.X.
So I've changed the network addresses to be on ...
1
vote
4answers
2k views
Stolen MacBook Pro
My MacBook Pro was recently stolen. I still have remote access via Dropbox and his IP address. I don't have the expertise to run SSH and change the remote login. I'd prefer to use a keylogger.
Could ...
0
votes
2answers
66 views
How can I capture ethernet traffic on a specific IP address on Windows
I was requested to capture all traffic to a specific static IP address from my Windows 7 machine, and I was wondering if there is anything built into Windows that would allow me to do so?
The device ...
0
votes
3answers
321 views
Hide URL name, but still have a link to it [closed]
Goal
Suppose I have original web page hosted on an URL like
www.mywebsite.com/page
I want people accessing this webpage thinking they are visiting other URL like
www.anotherwebiste/page
Is it ...
0
votes
0answers
102 views
Traceroute/ping timeout. A person can't reach my site
I'm working on a web project and the customer bought a dedicated IP address to install an ssl later. A designer on the team can not access the site (but everyone else can). The traceroute from the ...
0
votes
1answer
225 views
Why do I have so many IPv6 (inet6) addresses?
If I run ifconfig on my Linux (Ubuntu) server, I get the following output:
eth0 Link encap:Ethernet HWaddr d0:27:88:0f:80:74
inet addr:10.1.0.11 Bcast:10.255.255.255 Mask:255.0.0.0
...
0
votes
0answers
77 views
Is there a way to tell the difference between a direct connection and network connection
I want to configure a linux(ubuntu) machine such that when a direct connection is made with another PC my machine will enable a DHCP server and serve it an IP address, but if my machine is connected ...
0
votes
1answer
108 views
IP address “unknown” [closed]
My forum logs are showing that I have a member who is using an IP address of "unknown". He is the only one that I am aware of who is able to do this.
We recently had to ban an abusive member from the ...
1
vote
0answers
53 views
Why do I see folders of my computer under IP which I don't see in ipconfig?
At first, I could not connect to my NAS (which has static IP 192.168.1.100) from my notebook. But I can connect to it with all my other PCs. So I suspect some error somewhere in that notebook.
My ...
264
votes
4answers
34k views
Why does pinging 192.168.072 (only 2 dots) return a response from 192.168.0.58?
I mistakenly missed the dot off of an IP address and typed in 192.168.072.
To my surprise I connected to a machine at 192.168.0.58
If I ping 192.168.072 I get responses from 192.168.0.58.
Why is ...
1
vote
1answer
271 views
Unplugging ethernet cable without disabling NIC
Is it possible to configure the OS (Windows XP or Linux) or the NIC itself so that the NIC/interface remains enabled when the ethernet cable is unplugged?
Often, especially when I'm tinkering, it's ...
4
votes
3answers
393 views
How to find out my DNS Server address [duplicate]
Possible Duplicate:
internet connection problem with windows7
What is the way to know my current DNS server address? My computer's operating system is Windows 7 and I am using a broadband ...
0
votes
1answer
285 views
2 NICs conflicts on Windows 7 together
I have 2 NIC's on my computer. I have connected one with a GigE camera and the other to a switch which in turn connects it to a video server. If only one device (i.e., GigE camera or video server) is ...
2
votes
2answers
223 views
Can I have the same public IP while conected to different ISPs?
I have a possible disaster recovery scenario, use a production server with public IP from AT&T, the disaster recovery server should have the same public IP but with a different ISP (Time Warner or ...
106
votes
7answers
4k views
Why can't I email myself at: MyEmail@74.125.235.55?
I opened cmd and typed ping gmail.com. It shows me:
C:\Windows\system32>ping gmail.com
Pinging gmail.com [74.125.235.55] with 32 bytes of data:
Reply from 74.125.235.55: bytes=32 time=6ms TTL=56
...
1
vote
3answers
2k views
How can I redirect a subdomain to an internal IP?
I have a FQDN let's say abc.com with only one external IP and I use zoneedit.com ns servers.
I have configured www as a CNAME of abc.com. The web server is setup wiith IIS on local computer. What I ...
2
votes
0answers
101 views
Failed to connect to server: The requested address is a broadcast address, but the appropriate flag was not set
My server IP address starts with 128.xxx.xxx.xxx and my laptop gets its address as a DHCP and is of the for 10.254.xxx.xxx
I configured the server to look for my laptop and when I start the server it ...
