Difference between revisions of "Shell Accounts"

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(Access: no more telnetd)
(lake -> river)
 
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= Introduction =
 
= Introduction =
By default any user account on [[lake.fysh.org]] has shell login enabled.  This principally means you can make use of [[SSH]] to login to the account with full access to your own files and all software installed on the machine.  A few accounts are restricted to only using remote services like POP3 and IMAP for email, but this is far from the norm.
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By default any user account on [[river.fysh.org]] has shell login enabled.  This principally means you can make use of [[SSH]] to login to the account with full access to your own files and all software installed on the machine.  A few accounts are restricted to only using remote services like POP3 and IMAP for email, but this is far from the norm.
  
 
= Access =
 
= Access =
The only direct access to [[lake.fysh.org]] is via the Internet (specifically IPv4, we do not support IPv6 yet).  There is no dial-up or similar access.
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The only direct access to [[river.fysh.org]] is via the Internet.  There is no dial-up or similar access.  Whilst we do now have IPv6 connectivity it is still considered experimental and should not be relied upon.
  
As mentioned, primary access to a [[lake.fysh.org]] shell account is via [[SSH]].
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As mentioned, primary access to a [[river.fysh.org]] shell account is via [[SSH]].
  
 
We no longer (as of 1st September 2012) offer telnet access.
 
We no longer (as of 1st September 2012) offer telnet access.
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= Shells =
 
= Shells =
As the name 'shell account' implies once you have logged in you will be presented with a shell prompt.  The default shell for a [[lake.fysh.org]] account is bash, although we do also have tcsh and zsh installed and users may run the 'chsh' command to change their default shell.
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As the name 'shell account' implies once you have logged in you will be presented with a shell prompt.  The default shell for a [[river.fysh.org]] account is bash, although we do also have tcsh and zsh installed and users may run the 'chsh' command to change their default shell.
  
 
If you need any guidance on using such a shell try a [http://www.google.co.uk/ Google] search such as 'unix shell tutorial' to find a tutorial.
 
If you need any guidance on using such a shell try a [http://www.google.co.uk/ Google] search such as 'unix shell tutorial' to find a tutorial.
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Other than those restrictions mentioned below please make sure that any and all of your shell account use complies with our [[AUP]].
 
Other than those restrictions mentioned below please make sure that any and all of your shell account use complies with our [[AUP]].
  
We operate very few restrictions as to what you can do with your [[lake.fysh.org]] shell account.
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We operate very few restrictions as to what you can do with your [[river.fysh.org]] shell account.
  
 
Most accounts do have fairly strict resource limits applied, to prevent any single user hogging all the memory or CPU on the machine.  If you find these restrictions are overly strict for your purpose then [mailto:root@fysh.org ask us] to loosen them up for you, giving details of what you're trying to do that seems to be failing due to the limits.
 
Most accounts do have fairly strict resource limits applied, to prevent any single user hogging all the memory or CPU on the machine.  If you find these restrictions are overly strict for your purpose then [mailto:root@fysh.org ask us] to loosen them up for you, giving details of what you're trying to do that seems to be failing due to the limits.

Latest revision as of 20:34, 29 June 2013

Introduction

By default any user account on river.fysh.org has shell login enabled. This principally means you can make use of SSH to login to the account with full access to your own files and all software installed on the machine. A few accounts are restricted to only using remote services like POP3 and IMAP for email, but this is far from the norm.

Access

The only direct access to river.fysh.org is via the Internet. There is no dial-up or similar access. Whilst we do now have IPv6 connectivity it is still considered experimental and should not be relied upon.

As mentioned, primary access to a river.fysh.org shell account is via SSH.

We no longer (as of 1st September 2012) offer telnet access.

We do not offer rlogin or rsh access, please use SSH instead.

Shells

As the name 'shell account' implies once you have logged in you will be presented with a shell prompt. The default shell for a river.fysh.org account is bash, although we do also have tcsh and zsh installed and users may run the 'chsh' command to change their default shell.

If you need any guidance on using such a shell try a Google search such as 'unix shell tutorial' to find a tutorial.

Restrictions

Other than those restrictions mentioned below please make sure that any and all of your shell account use complies with our AUP.

We operate very few restrictions as to what you can do with your river.fysh.org shell account.

Most accounts do have fairly strict resource limits applied, to prevent any single user hogging all the memory or CPU on the machine. If you find these restrictions are overly strict for your purpose then ask us to loosen them up for you, giving details of what you're trying to do that seems to be failing due to the limits.

We do not currently use any disk quota scheme, but if we encounter problems with users filling available space we may have to implement such so as to protect other users.

You may leave processes running without an active login, just ensure they aren't going to hog system resources (RAM, CPU, or disk space) in your absence.