Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
Agree Srini :-) -- Regards, Balasubramaniam Natarajan www.etutorshop.com/moodle/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
friends. our list has members around the globe. we have to maintain the discussions in English so that it reaches most of the members. we have a separate list to discuss in Tamil. ilugc.ta...@ae.iitm.ac.in join in that list and discuss in Tamil thanks. ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
உங்கள் படத்தில் சூப்பர் வீடியோ கேமரா அதன் முழுவதும் தகுதியான செயற்கள பெயரை மூலம் கணினி அடைய வேண்டும் 2012/3/19 ganesh moorthi > தமிழில் எழுதுங்கள் எனக்கு ஆங்கிலம் தெரியாது > ___ > ILUGC Mailing List: > http://www.ae.iitm.ac.in/mailman/listinfo/ilugc > -- Regards, Balasubramaniam Natarajan www.etutorshop.com/moodle/ ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
தமிழில் எழுதுங்கள் எனக்கு ஆங்கிலம் தெரியாது ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, 2012-02-08 at 16:12 +0530, Shrinivasan T wrote: > > I maintain a server in a remote place. It is connected to a LAN - > the > > LAN is the usual poor man's LAN which uses the BSNL router as the > dhcp > > server. They have dynamic IP from bsnl. The machine the machine has > a > > fixed IP (192.168.1.123). The inward facing IP of the router is > > 192.168.1.1. Is it possible to ssh into this machine from outside, > and > > if so how? > > In the BSNL router, they have to port forward 22 port to the inner > machine. > check the site http://portforward.com for their model and guide on how > to do port forward. an exe file? -- regards Kenneth Gonsalves ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
> Take a look at this: > > https://pagekite.net/ > This is an interesting service but you might face high latencies, especially for SSH. Unless, they have the service provided out of an Indian DC as well. -- 0 ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
Hi, On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > hi, > > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? > -- > regards > Kenneth Gonsalves > > Take a look at this: https://pagekite.net/ PageKite is software that gives your localhost servers names and makes them globally visible. It works with any computer and any Internet connection. It's so easy you'll never want to think about routers, IP addresses or other technicalities again. It's open source, too! Regards Ravi Kumar ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > hi, > > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? > -- An extremely popular thread! Great going! I always run a perl script from the dyndns.org site that updates the IP whenever it changes. You have to tweak it a bit everytime you have a different MODEM. Basically all it does is figure out its own IP using the same method as http://www.checkmyip.com which is nothing but a simple CGI that prints the env var REMOTE_ADDR Anyway other than port forwarding there is one more technique which is quite excellent as there is no need to do any port forwarding but it is complex to get working and it requires the machine to be always up and requires a third machine with a public IP. With all these needs I call it excellent since it kind of breaks firewalls and is quite interesting both from a crypto angle and from a networking angle. Anyway I am not going to dwell upon this because if you search last year's or the previous year's posts I have sent a ssh port forwarding technique mail. Look at that and you will know what to do. -Girish -- G3 Tech Networking appliance company web: http://g3tech.in mail: gir...@g3tech.in ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? Others have already suggested the port forwarding method. Only addition I would like to make is that you also configure iptables connection rate limiting for ssh. This will ensure your server is not brute forced by bots. I recommend you do this on all internet facing servers. Alternate methods which do not require port forwarding: 1. Initiate a connection from the internal server to an external server and port forward from external server to internal ssh. 2. From your internal server connect to an external OpenVPN server. >From this external network, you can ssh to the internal server's VPN interface IP address. - Raja ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
I maintain a server in a remote place. It is connected to a LAN - the LAN is the usual poor man's LAN which uses the BSNL router as the dhcp server. They have dynamic IP from bsnl. The machine the machine has a fixed IP (192.168.1.123). The inward facing IP of the router is 192.168.1.1. Is it possible to ssh into this machine from outside, and if so how? This is pretty simple to do, I have been using it for a few years now. There are three parts to the problem, 1. Accessing your Dynamic IP 2. Opening your SSH port 3. NAT Loopback (1) Dynamic IP Since the IP is dynamic, you need a domain name which can be updated periodically. There are several dynamic DNS providers, one of the popular ones is dyndns.org which is now dyn.com. They provide a couple of REST APIs which you can use to get your external IP and update the IP in your dyn.com account. I have attached the shell script which you can use. Just modify the script with your newly created dyn.com account name and password. (2) Port forwarding BSNL modems are unpredictable when it comes to port forwarding but you can try it out. In the port forwarding table, just specify incoming port 22 to be forwarded to IP (192.168.1.123) and port 22. (3) NAT Loopback This is just something you should know, it is not required. Even after the above setup, you might not be able to access your domain name directly from your internal network if the router doesn't support NAT loopback. AFAIK, linksys/cisco routers support this while the basic netgear routers don't. I don't know about BSNL modem/routers. In case you are interested, the script does the following, - gets your external ip - resolves the domain name to the current ip - if the current ip and external ip are different, issues an update. Hope this helps. -- 0 update_dyndns.sh Description: application/shellscript ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
> > run a script in the machine with dynamic ip. The script will write the new > ip address to the machine which has static ip. In the machine with static > ip, read the ip address and connect remotely to the machine. (This is what > dyndns is doing internally). > How ? in our case we either have Server ( Dynamic Ip) <-> Internal Machine ( Private IP) Router ( Dynamic Ip) <> Server Host ( Private IP ) in both the cases either the server gets a dynamic public ip or router now can you eloborate on how we can do it? -Satya ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
Hi, You can also use the DNSExit tool which will be useful to access machine which is in dynamic address. I have not used this product and it is similar to Dynedns. Hope you need to run their Dns client software which will help to catch the registered domain name. http://www.dnsexit.com/Direct.sv?cmd=11 Thanks, V. Karthick On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > hi, > > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? > -- > regards > Kenneth Gonsalves > > ___ > ILUGC Mailing List: > http://www.ae.iitm.ac.in/mailman/listinfo/ilugc > -- Thanks, V. Karthick My Experience shared in : http://vkarthickeyan.wordpress.com ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 4:15 PM, Manokaran K wrote: > On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves >wrote: > > > hi, > > > > I maintain a server in a remote place. It is connected to a LAN - the > > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > > server. They have dynamic IP from bsnl. The machine the machine has a > > fixed IP (192.168.1.123). The inward facing IP of the router is > > 192.168.1.1. Is it possible to ssh into this machine from outside, and > > if so how? > > > > The following explains how to set up such a system. Instead of the first > step, which updates dyndns, you can modify the script to send you an email > whenever the IP address changes. > > > http://www.dyndnscommunity.com/questions/426/how-do-i-access-my-device-from-outside-my-home-net.html > > I have not tried this. But I too am keen to know if this works. > > regds, > mano > ___ > ILUGC Mailing List: > http://www.ae.iitm.ac.in/mailman/listinfo/ilugc > run a script in the machine with dynamic ip. The script will write the new ip address to the machine which has static ip. In the machine with static ip, read the ip address and connect remotely to the machine. (This is what dyndns is doing internally). ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > hi, > > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? > yes using a dyndns kind of service this article explains it well https://help.ubuntu.com/community/DynamicDNS right now i am on dynamic ip we can test it , only part i will be missing is the router , presently in my case you can directly also ssh using ip address instead of coming through a third part service . -Satya fossevents.in ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 4:12 PM, Shrinivasan T wrote: > On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves > wrote: > > hi, > > > > I maintain a server in a remote place. It is connected to a LAN - the > > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > > server. They have dynamic IP from bsnl. The machine the machine has a > > fixed IP (192.168.1.123). The inward facing IP of the router is > > 192.168.1.1. Is it possible to ssh into this machine from outside, and > > if so how? > > In the BSNL router, they have to port forward 22 port to the inner machine. > check the site http://portforward.com for their model and guide on how > to do port forward. > yes this will also work provided there is someone around to tell us the dynamic ip , i am presuming in my case we do not have anyone around to tell us the dynamic ip address. -Satya fossevents.in ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > hi, > > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? > The following explains how to set up such a system. Instead of the first step, which updates dyndns, you can modify the script to send you an email whenever the IP address changes. http://www.dyndnscommunity.com/questions/426/how-do-i-access-my-device-from-outside-my-home-net.html I have not tried this. But I too am keen to know if this works. regds, mano ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
Re: [Ilugc] remotely accessing a machine on a lan with dynamic IP
On Wed, Feb 8, 2012 at 3:54 PM, kenneth gonsalves wrote: > hi, > > I maintain a server in a remote place. It is connected to a LAN - the > LAN is the usual poor man's LAN which uses the BSNL router as the dhcp > server. They have dynamic IP from bsnl. The machine the machine has a > fixed IP (192.168.1.123). The inward facing IP of the router is > 192.168.1.1. Is it possible to ssh into this machine from outside, and > if so how? In the BSNL router, they have to port forward 22 port to the inner machine. check the site http://portforward.com for their model and guide on how to do port forward. -- Regards, T.Shrinivasan My Life with GNU/Linux : http://goinggnu.wordpress.com Free/Open Source Jobs : http://fossjobs.in Get CollabNet Subversion Edge : http://www.collab.net/svnedge ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
[Ilugc] remotely accessing a machine on a lan with dynamic IP
hi, I maintain a server in a remote place. It is connected to a LAN - the LAN is the usual poor man's LAN which uses the BSNL router as the dhcp server. They have dynamic IP from bsnl. The machine the machine has a fixed IP (192.168.1.123). The inward facing IP of the router is 192.168.1.1. Is it possible to ssh into this machine from outside, and if so how? -- regards Kenneth Gonsalves ___ ILUGC Mailing List: http://www.ae.iitm.ac.in/mailman/listinfo/ilugc
