I want to run config of my program, only when it is first-time started. Can I determine somehow, did my program ever start before? I think I can create file to check it existence, but is there any more optimal way?
Make a config file, give an example (perhaps config.sample) in whatever documentation your program provides, and if that config file does not exist, you will know that no one has set the config at all.
While this technically won't mean that your program has never "started before", it will tell you that it has not been configured.
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Can you please help me insert my bash script into freeradius. I would like to start my script each time a user is allowed access via freeradius to my network.
I tried to insert my script into queries (/etc/freeradius/3.0/mods-config/sql/main/mysql/queries.conf), but the script is not invoked.
If you have any idea on how to do this please let me know.
Thank you in advance!
Adding random things to the SQL configuration isn't going to help here.
You need to configure the exec module, the best example is in mods-enabled/echo (though also see mods-enabled/exec). There are examples in that file on how to point to the script that you want to run, and what it should return.
Then to ensure that it is run after a successful authentication, make sure that echo (or whatever instance name you gave to the module configuration) is listed in the post-auth{} section of the correct virtual server, most likely sites-enabled/default.
Note that calling out to external scripts is nearly always a bad idea, it will cause performance to drop significantly. There is usually a better way to solve the problem.
How could I make a script that runs when the metasploit handler receives a new session?
By the way, the script should check if a file exists, and if it doesn't, it should upload a file to the victim.
I'm pretty sure I know how to write the script, I just don't know how to make it run when the listener (handler) receives a session
I found out how to do it. Use the AutoRunScript (advanced) option and it will work.
I need to write a shell script in which I need to bounce the Tomcat server(it would possibly on anyone's system). Hence, I wanted to know how should I check if tomcat is ran as a service with "service tomcat6 start" or with the script "./bin/startup.sh"?
If this is for a production server: Assume that it's always started as a service. If you find out that it isn't: Find the person that started from the shell and fire them.
Hard words, but on production systems: Hand off, keep them operating according to a standard. If you automate the bouncing (restart): This is what you do.
Dangers when starting through startup.sh: The process will be started as whatever user executes the script - potentially lacking write permissions to the log and temp files, or ruining it for the next start through service tomcat start, when the service can't access those files any more.
Thinking of it: It might be a good idea to check (at least) the identity of the current user in startup.sh (or setenv.sh) and terminate if it's not the expected one. Thus effectively forbidding to ever run startup.sh as a regular user, including root.
We're using the Ruby gem whenever to manage large batches of import jobs. But what if a file is still being imported when the next cron job occurs?
For example:
12am: whenever starts an import cron job for import.csv
2am: import.csv is still being imported, but the next cron job is scheduled in whenever.
Would whenever skip that file or try to run it again? Any suggestions to make sure it doesn't try to process the same file twice?
Whenever is merely a frontend for the crontab. Whenever doesn't actually launch any of the processes, it writes a crontab that handles the actual scheduling and launching. Whenever cannot do what you're asking.
The crontab cannot do what you want either. It launches the process and that's it.
You need to implement the checking yourself in the process launched by cron. A common way of doing this could be a lockfile, and I'm sure there are libraries for this (ie http://rubygems.org/gems/lockfile).
Depending on your situation you might be able to create other checks before launching the import.
Well, this isn't really an issue of whenever
However, you could rename the file you want to import when you start processing (12am to 2am is a reasonable amount of time to do that) and move it to an archive directory once you are done processing so there is no confusion.
The next time the task runs it should look for all files that do not match a naming pattern (as already suggested in one of the comments)
And you might want to add an additional task that checks for imports that might have failed (e.g. a file has a naming pattern including the exact time but after a whole day it is still not archived) and either create some kind of notification or just trigger the task again/rename the task so it is picked up again (depending on how well your rollback works)
I want to run a windbg script that will accomplish the following:
I want to track certain registers the moment an API is hit, without stopping due to timing issues. So , the moment the API is called, I want the script to open a logfile, echo the fact that the api is hit with the details of the parameters, and let it run till it hits the conditional brkpoint I've put at the API end, which simply closes the open logfile.
Now , the problem is, I want to do this multiple times, w/o the previous logfile getting overwritten. Ideally, if there is some command which lets me specify that the name of the logfile (.logfile file) by the timestamp of that moment, my problem is solved.
Can anyone help?
Pretty easy:
I'll have to use .logopen /t filename - what a no-brainer :)