How-To-Secure-A-Linux-Server
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imthenachoman
An evolving how-to guide for securing a Linux server.
The Ubuntu Hardening Guide that is mentioned inside the [Other Guides Section](https://github.com/imthenachoman/How-To-Secure-A-Linux-Server#other-guides) is _currently_ unreachable. The link could be easily replaced by [a capture from Web Archive](https://web.archive.org/web/20190324060724/https://blog.vigilcode.com/2011/04/ubuntu-server-initial-security-quick-secure-setup-part-i/) but i've decided...
Fixed some typos, removed some repeated words, added some missing commas...
Searched the repo and didn't find anything about this, is this something that should be included? https://sunknudsen.com/privacy-guides/how-to-configure-hardened-debian-server#step-3-disable-root-bash-history > Step 3: disable root Bash history > > echo "HISTFILESIZE=0" >> ~/.bashrc...
Hello, I am using Ubuntu to create a SSH key pair. It appears that I have my private and public keys correctly but it continues to not prompt me with...
@imthenachoman, thanks for this man, I am following this awesome tutorial on my fresh debian12 instance but being blocked by this error upon invoking `fail2ban start` > ERROR Failed during...
https://link.springer.com/content/pdf/10.1007/s42979-023-01724-1.pdf https://aws.amazon.com/security/post-quantum-cryptography/ https://lantian.pub/en/article/modify-website/post-quantum-encryption.lantian/ https://www.mckinsey.com/capabilities/mckinsey-digital/our-insights/when-and-how-to-prepare-for-post-quantum-cryptography https://nvlpubs.nist.gov/nistpubs/CSWP/NIST.CSWP.04282021.pdf https://developer.ibm.com/tutorials/set-up-a-quantum-safe-ssh-connection/ https://github.com/open-quantum-safe/oqs-provider https://openquantumsafe.org/applications/tls.html https://github.com/open-quantum-safe/liboqs https://www.redhat.com/en/blog/post-quantum-cryptography-introduction https://docs.digicert.com/en/certcentral/certificate-tools/post-quantum-cryptography.html https://www.secure-ic.com/blog/pqc/post-quantum-cryptography-having-it-implemented-right/ https://news.itsfoss.com/tutanota-post-quantum-secure-cloud/
The example SSH configuration has several options that (at least from my point of view) are not related to security and that do not have any written justification: * `TCPKeepAlive...
Hello! I'm Kevin, a security engineer based in Taiwan. I just read the article and they are very helpful for maintaining Linux servers. May I translate this repo into Mandarin?...
The `compression` option is no longer a security risk, as the compression now only occurs after the user has been authenticated. The reason why it used to be a security...
The `protocol` option has been removed, as openssh now only supports and uses protocol 2. Therefor we should remove the `protocol 2` key-value pair from `sshd_config` Source: [openssh, release 7.6](https://www.openssh.com/txt/release-7.6)...
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An evolving how-to guide for securing a Linux server.