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Questions tagged [server-security]

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Log are missing in High load server

when running the system under heavy load, we see that not all messages are logged. Sometimes no connections are allowed even if all other clients have disconnected. How to tackel the problem?
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27 views

ModSecurity OWASP core rule set testing freezes my instance

I installed ModSecurity for my nginx web server which is running on Ubuntu 18.04LTS and my machine is AWS EC2 instance. I installed ModSecurity version 3 by following the follows link: https://www....
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Map an AP's management IP to appear in a different, more trusted, LAN subnet?

I'm not sure of the best way to solve this problem, although several solutions (including some really simple "don't worry about it" solutions) probably exist. My LAN has totally segregated WiFi and ...
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1answer
233 views

What is NIS (network Information Service) and why do large organizations use it?

I am curious what NIS (Network Information Service) is and why do large organizations use it? From what I know it is a way for people to log in on their account from another computer. What is an ...
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1answer
131 views

Encryption of Encrypted data

Is it possible to encrypt encrypted data, using multiple programs so that in order to decrypt you would need both programs? Not really sure if this is possible but just wondering if it was a thing and ...
-2
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1answer
36 views

How can I know ASAP when my PC loses Internet connectivity and I'm away from the PC? [duplicate]

I have a PC with a USB humidity logger, that measures humidity in our factory. When the humidity is too high, the PC sends me an email alerting me to the problem. Sometimes the internet goes down, or ...
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1answer
82 views

How can I know ASAP when my PC loses Internet connectivity and I'm away from the PC [closed]

I need to know ASAP when my PC loses Internet connectivity. It is of no use to me if my PC waits until it's back online and then emails/SMSs me that service has been restored. Is there a way to ...
9
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4answers
19k views

Safe to use high port numbers? (re: obscuring web services)

I have a small home network and I'm trying to balance the need for security versus convenience. The safest way to secure internal web servers is to only connect using VPNs but this seems overkill to ...
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4answers
546 views

Measures when routinely checking security on a home Ubuntu server

I use an old Mac mini with latest Ubuntu server to have a "home Gmail": with minimal time spent on configuration I have my webserver with wiki, mail server etc. (and no Google Ads) All ports not used ...