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I have ssh access to several machines at our university computing center, but they only allow connections from within university network which means I have to go on campus everytime I need to run a simulation, collect results, etc.
Is there any way to make my IP address have a specific prefix so that ident protocol on that machine allow me access? I don't expect a specific or complete answer just give me hints where should I look.
You cannot make your IP address have 'specific prefix'. However, if you have SSH access from outside world to your campus computer, you can use port forwarding to access in-network resources.
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I mean firewalls like Checkpoint, Fortigate, sonicWALL etc.
Do they have have API or Remote CLI ?
can i, for example, send them a remote call to filter in\out a certain port?
I Just want to know if that's possible, if you have examples that's awesome, but evena simple "yes, Checkpoint and soincwall does that" are great!
I only have some experience with Fortigate-firewalls. They usually have SSH.
This means you could use a command like this:
ssh <hostname_or_IP> -t "echo 'hello world'"
to sumbit your new rules to your firewall.
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I have an existing website pointed to by the domain www.xyz.com . We are now creating a new sub-site to this www.xyz.com/ab/. We have another regional domain www.abc.rg purchased and we want to point this domain to the /ab/ sub-folder.
The queries are:
If I want to do this at the DNS level is it going to be an issue in terms of SEO?
If I do so how can I add Google tracking to it? I want to continue using my existing tracking for www.xyz.com and provide reports separately for www.abc.rg.
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I'm not sure how open the Mac platform is for 3rd party applications.
Would it be possible to write software that regulates internet usage?
Say I wanted to only allow internet usage between 5-6pm? Is that possible?
Any pointers on how to get started?
Yes. You can look at the Mac app Self Control:
http://visitsteve.com/made/selfcontrol/
This application disables a certain list of sites for a defined period of time. I know that the application uses the /etc/hosts file to disable access to these sites by setting all of these hosts to 127.0.0.1. Obviously a savvy user could override this method, but it works well.
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I want to connect to ssh and type in a command that will show me live updates such as their ip address as they enter my site. is that possible? simply see what page an ip address entered or just the ip of a person that connected to the site.
Live meaning i see the list updated as it happens.
tail -f /path/to/your/access.log
Usually reading the log is pretty useless though.
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I am new to networking. I just basically want to know whether we can actually get to know the no of persons logged onto our network. Since i am in a university we have the same proxy address and the IP is also same. So is it possible.
Strictly speaking, this question should be asked on superuser.com.
It depends a bit on your network. If your internal IP addresses are dynamically allocated, your administrator will be able to see how many of them have been requested. He may also monitor the traffic, and see from his statistics how many addresses have actually been seen as active. If your network uses authentication, he may monitor the valid logins over time.
Which of these you define as 'people on your network' is a bit up to you. Real people don't have that kind of interface.