by s » Fri, 24 Dec 2010 07:34:21
How to implement a network system, where a user will be given a password to
login, which will then allow it to access internet for one session only ?
(For another session, another password will be given.)
Another scenario is: a user can bring its laptap, plugs in into a network
port and login for a single session.
Thanks.
by jack » Thu, 23 Dec 2010 16:48:17
> A friend asked me a general question, which I am not sure how to implement.
> How to implement a network system, where a user will be given a password to
> login, which will then allow it to access internet for one session only ?
> (For another session, another password will be given.)
> Another scenario is: a user can bring its laptap, plugs in into a network
> port and login for a single session.
The canonical answer is: install a router/firewall that makes sure
nothing on the network has internet access, and install a squid proxy
(either in transparent proxy mode, or put a small web server on the
network that server a proxy-autoconfiguration file that points new
clients to the proxy). Configure the squid to use some authentication
scheme that you control with your definition of 'session'. That could be
implemented as a simple username/password file with a couple of php or
perl scripts to manage it, an LDAP server, or some PAM modules.
I would Google for 'Internet Cafe setup', there are lots of ways to do this.
-j
by Robso » Thu, 23 Dec 2010 17:49:16
Try HP ProCurve Guest Management ToolQuote:> A friend asked me a general question, which I am not sure how to implement.
> How to implement a network system, where a user will be given a password to
> login, which will then allow it to access internet for one session only ?
> (For another session, another password will be given.)
> Another scenario is: a user can bring its laptap, plugs in into a network
> port and login for a single session.
> Thanks.
R
by Chris Davie » Thu, 23 Dec 2010 17:16:11
> How to implement a network system, where a user will be given a password to
> login, which will then allow it to access internet for one session only ?
> (For another session, another password will be given.)
> Another scenario is: a user can bring its laptap, plugs in into a network
> port and login for a single session.
1. To use temporary files or not to use temporary files?
This is a repost with Subject line changed:
It is very sad to see that Brian Kernighan and Rob Pike uses temporary
files in the example. I think the temporary can be easily and better
avoided in this case. The modified version is provided at the end. If you
believe the modified version is not better, I would like to hear it.
I make a lot of effort not to use temporary files in my shell scripts,
I do not know if I am alone in this.
And I do not see the value of saving the the original file in the
script:
cp $file $old # save original file
In "The UNIX Programming Environment", Brian Kernighan and Rob Pike provide
#!/bin/ksh
# overwrite: copy standard input to output after EOF
# modified version
opath=$PATH
PATH=/bin:/usr/bin
case $# in
0|1) echo 'Usage: overwrite file cmd [args]' 1>&2; exit 2
esac
file=$1; shift
then
trap '' 1 2 15 # we are committed; ignore signals
print -r -- "$new" > $file
else
echo "overwrite: $1 failed, $file unchanged" 1>&2
exit 1
fi
3. IE's Temporary Internet Files: rescue or converting to Linux?
5. temporary private net access, please help
7. Need temporary access to Sol X86
8. StarOffice and Excell document conversion question.
9. Provide internet access with SCO OpenSErver On Internet
10. Linux dialin, assigning dynamic IP, allowing internet access
11. HowTO: FreeBSD 2.2.1 Gatway to Cable Modem Internet Access ?
12. LAN with 2 internet access points ?
13. Internet access