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i try to write a script which gets IPs from a list, and puts them it into my hosts.deny. It already works in a test environment, but every now and then a line with no client is in between. So it looks like: "sshd : "
what happens with this line? Will it be interpreted as not exisiting or will it be interpreted as ALL? Or will it crash?
Better yet, why don't you include some kind of sanity filter in your script to verify that the IPs are numeric? You could use a standard regex to make sure the IP consists of only numbers.
i try to write a script which gets IPs from a list, and puts them it into my hosts.deny. It already works in a test environment, but every now and then a line with no client is in between. So it looks like: "sshd : "
what happens with this line? Will it be interpreted as not exisiting or will it be interpreted as ALL? Or will it crash?
Thanks
Sascha
It looks like it's ignored. I agree with Capt_Caveman though, you should filter your entries and not write anything if the list of hosts is empty.
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