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Banning Ips
| Posted by imbilly, 09-19-2013, 09:34 AM |
| Hey,
I've set things up on my VPS so that I get an email whenever someone tries to log in too many times and fails.
The email comes with a few links I can follow to block the ips that end in:
222.52.118.214 (for blocking an individual ip)
222.52.118.0/24
222.52.0.0/16
I'm guessing the last two block multiple ips, but beyond that I'm not really sure what they mean, what the consequences would be, or which choice I should make.
I'd appreciate any clarification or suggestions you can offer.
Thanks,
Billy
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| Posted by net, 09-19-2013, 09:46 AM |
| I would recommend to just block it individually because blocking by range can block potential customers.
If this is what you are asking?
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| Posted by imbilly, 09-19-2013, 10:22 AM |
| Hey Net,
That's part of it. Will either of the multiple options block a large number of addresses or are we just talking about a few?
Thanks,
Billy
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| Posted by BestServerSupport, 09-19-2013, 11:11 AM |
| I would recommend you to use firewall in your VPS like CSF which will automatically send you an email once there is a root access to the server also it will automatically block IP address if there is multiple failed login attempts comes from same IP address.
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| Posted by serve-you, 09-19-2013, 12:56 PM |
| The /24 will block 256 IP's. The /16 will block 65536 IP's. In some cases I will block a /24 if there are multiple requests coming from multiple IP's in the range. Rarely would I do more than that, simply because the IP's aren't necessarily all from the same provider/bad use.
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| Posted by imbilly, 09-19-2013, 06:13 PM |
| Hey Best,
I think that's what I'm doing, the email the system is generating includes those choices.
Hey Serve,
Thanks for explaining that, I think the /16 seems a little excessive too.
Thanks everyone, I appreciate your help. I feel like I've got a little better handle on things now.
Billy
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| Posted by WebHostDog, 09-20-2013, 11:30 AM |
| Yes 65K IPs being blocked is pretty bold. if you have leads that a /24 class is attacking / abusing you can can block it will not hurt.
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