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Remote connectivity to Mainframe server

 
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Ramanujamsolaimalai

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Joined: 20 Sep 2011
Posts: 7
Location: India

PostPosted: Wed Nov 23, 2011 6:48 pm    Post subject: Remote connectivity to Mainframe server
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Hi!

I'm trainee in mainframe development. I have a doubt regarding remote mainframe accessing. For example we have certain softwares like remote desktop which helps us to access remote desktop just by knowing its ip address. Like that can we connect to remote mainframe server through webconnection by its ipaddress and port?

Please help me in it icon_neutral.gif icon_idea.gif
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Pedro

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Joined: 01 Sep 2006
Posts: 2088
Location: Silicon Valley

PostPosted: Wed Nov 23, 2011 7:17 pm    Post subject: Reply to: Remote connectivity to Mainframe server
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Quote:
can we connect to remote mainframe server through webconnection by its ipaddress and port?


Using IBM's PCOMM emulator, you use the action bar:
communication -> configure -> link parameters

where you specify the host name or IP address. The port number is 23 (not sure if it is universal).


Quote:
access remote desktop just by knowing its ip address

You still need to provide userid / password.
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Ramanujamsolaimalai

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Joined: 20 Sep 2011
Posts: 7
Location: India

PostPosted: Wed Nov 23, 2011 7:23 pm    Post subject: Doubt
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O! Then that port should be universal. Then only i can get connected to it remotely through web even i'm not in that lan
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enrico-sorichetti

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Joined: 14 Mar 2007
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Location: italy

PostPosted: Wed Nov 23, 2011 7:30 pm    Post subject: Reply to: Remote connectivity to Mainframe server
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Quote:
Then that port should be universal.

why should it be ?
each organization has the lawful right to use for access any <port> it feels fit for its environment
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Ramanujamsolaimalai

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Joined: 20 Sep 2011
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PostPosted: Wed Nov 23, 2011 7:31 pm    Post subject:
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Ya correct. But I want to know is it possible. Just an exploration. Thank you very much
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Robert Sample

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Joined: 06 Jun 2008
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Location: East Dubuque, Illinois, USA

PostPosted: Wed Nov 23, 2011 9:36 pm    Post subject:
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On a TCP/IP stack, port 23 is by default the telnet port. However, access to a mainframe can vary -- our site has ports 23, 1023, 2023, and 3023 open to telnet for various reasons. I've also seen 623 used for a mainframe.

Quote:
Then only i can get connected to it remotely through web even i'm not in that lan
This is one of those questions that can only be answered AT A SITE. Most sites have their mainframes behind a firewall of some sort, so even if you know the IP address you cannot just open port 23 of that IP address willy-nilly. There may be VPN access or other ways to get to that mainframe from the Internet, but only someone working at that site can tell you for sure.
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Pedro

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Location: Silicon Valley

PostPosted: Wed Nov 23, 2011 9:44 pm    Post subject: Reply to: Remote connectivity to Mainframe server
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Quote:
Then only i can get connected to it remotely through web even i'm not in that lan


The normal connection is through local LAN. If you work remotely, you will likely need a VPN connection. That is, just being on the 'web' is probably not good enough.
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Thu Nov 24, 2011 6:43 pm    Post subject:
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Quote:
I'm trainee in mainframe development. I have a doubt regarding remote mainframe accessing.
I'm not sure but I'd read between the lines - this problem does not sound like accessing a Mainframes from a remote location instead about the perception about how things work.

Mainframe connection are not availble to individuals
  • unless you are a free lancer - which is still a very distant dream in India.
  • unless you work for a local IT company and the client allows you to access it from a remote location.
  • unless you pay for it.

I've seldom seen people around here paying for it - they work on client netwrok and then there are procedures to connect to it - which your site will tell you.

Having said all that, are you by any chance asking about using a mainframe connection at home for your practice?
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Ramanujamsolaimalai

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Joined: 20 Sep 2011
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PostPosted: Mon Nov 28, 2011 7:49 am    Post subject:
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Exactly sir! My doubt is regarding that only. Can i connect or not? Is it possible or not? thats it...Now its cleared. Thank you
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prino

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Joined: 07 Feb 2009
Posts: 1072
Location: Oostende, Belgium

PostPosted: Mon Nov 28, 2011 2:18 pm    Post subject:
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Anuj Dhawan wrote:
... Mainframe connection are not available to individuals
  • ...
  • ...
  • unless you pay for it.
I've seldom seen people around here paying for it - they work on client network and then there are procedures to connect to it - which your site will tell you.

Of course mainframe connections are freely available, there is "that" system running z/OS 1.06, and there is Hercules, which can be used to run old versions of MVS (and has no problem with newer ones... icon_lol.gif)
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Anuj Dhawan

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Joined: 22 Apr 2006
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Location: Mumbai, India

PostPosted: Mon Nov 28, 2011 6:37 pm    Post subject:
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LOL - I'm thinking what Pedro, Enrico and Robert (Sample) have to say after seeing the reply from OP.

hitchhiking is fun Man! 324,088.0 km --whooaaa - Bravo! Come India soon! icon_smile.gif

Regards,
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