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Nikolay Hristov
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87 followers
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новия green day, както трябваше да звучи, не като последната кънтри-поп-глупост.
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Jboss / Wildfly errors when accepting socket java.io.IOException: Bad file descriptor problem
Jboss/Wildfly random crashes under heavy load: Symptoms: Jboss/Wildfly crashes randomly with  java.io.IOException: Bad file descriptor. Undertow HTTp server does not restart but admin console and everything else is working and nothing in log files. How to d...
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How to filter 99.99% of ssh brute force attacks
Recently I've decided to experiment with ssh ciphers / key exchange algorithms to raise the security of my servers. This is the /etc/ssh/sshd_config I've got: HostKey /etc/ssh/ssh_host_ed25519_key Ciphers chacha20-poly1305@openssh.com KexAlgorithms curve255...
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