Fix broken links

Author: elopez

README.md

@@ -126,7 +126,7 @@ Your browser will be automatically refreshed with changes whenever you save a fi
      (built on top of [retext](https://github.com/retextjs/retext) and [remark](https://github.com/remarkjs/remark)).
      Uses the [tbroadley/spellchecker-cli-action](https://github.com/tbroadley/spellchecker-cli-action) action.
 
-- Familiarize yourself with the [Hugo Book theme](https://hugo-book-demo.netlify.app/)
+- Familiarize yourself with the [Hugo Book theme](https://book.alxs.dev/)
 as it has a couple of nice features (buttons, etc.)
 - Reach out in [#testing-handbook](https://empirehacking.slack.com/archives/C06CSLSQAMB) Empire Hacking Slack if you have any questions.
 

content/docs/languages/c-cpp/20-seccomp.md

@@ -22,7 +22,7 @@ weight: 20
   - Consult the [kernel's syscall tables](https://github.com/torvalds/linux/blob/master/arch/x86/entry/syscalls/syscall_64.tbl).
 - [ ] Syscalls enabling code execution in the kernel (e.g., `kexec_file_load`, `finit_module`) are prevented.
   - A malicious kernel module can easily manipulate the seccomp sandbox.
-- [ ] If any of the following syscalls are blocked or traced, [then the `restart_syscall` syscall is also blocked or traced](https://git.causa-arcana.com/kotovalexarian-likes-github/moby--moby/commit/5abd881883883a132f96f8adb1b07b5545af452b?style=unified&whitespace=show-all&show-outdated): `poll`, `nanosleep`, `clock_nanosleep`, or `futex`.
+- [ ] If any of the following syscalls are blocked or traced, [then the `restart_syscall` syscall is also blocked or traced](https://github.com/moby/moby/commit/5abd881883883a132f96f8adb1b07b5545af452b): `poll`, `nanosleep`, `clock_nanosleep`, or `futex`.
 - [ ] Old kernel versions are supported if needed:
   - [ ] For Linux kernel versions prior to 5.4, the BPF filter [checks for `compat` syscalls confusion](https://man7.org/linux/man-pages/man2/seccomp.2.html#:~:text=Additionally%2C%20kernels%20prior%20to%20Linux%205.4%20incorrectly%20permitted%20nr) (i.e., calling 64-bit ABI syscalls with the `__X32_SYSCALL_BIT` bit).
   - [ ] For Linux kernel versions prior to 4.8, the BPF filter [disables the use of `ptrace` for all sandboxed processes](https://www.exploit-db.com/exploits/46434).

content/docs/static-analysis/semgrep/99-resources.md

@@ -55,7 +55,7 @@ weight: 99
 - [Enforcing Code & Security Standards with Semgrep](https://owasp.org/www-chapter-newcastle-uk/presentations/2021-02-23-semgrep.pdf)
 - [Using Semgrep to find security issues and misconfiguration in AWS Cloud Development Kit projects](https://blog.aquia.io/blog/2022-02-18-semgrep-cdk/)
 - [Spring Actuator Security, Part 2: Finding Actuators using Static Code Analysis with Semgrep](https://blog.maass.xyz/spring-actuator-security-part-2-finding-actuators-using-static-code-analysis-with-semgrep)
-- [Semgrep ruleset for C/C++ vulnerability research](https://security.humanativaspa.it/semgrep-ruleset-for-c-c-vulnerability-research/)
+- [Semgrep ruleset for C/C++ vulnerability research](https://hnsecurity.it/blog/semgrep-ruleset-for-c-c-vulnerability-research/)
 - [Customizing Semgrep Rules for Flask/Django and Other Popular Web Frameworks](https://blog.includesecurity.com/2021/07/customizing-semgrep-rules-for-flask-django/)
 - [Semgrep: scanning unusual extensions](https://blog.anantshri.info/semgrep-scanning-unusuals-extensions/)
 - [Semgrep - Matching JavaScript Imports](https://www.ayrx.me/semgrep-javascript-imports/)
@@ -65,7 +65,7 @@ weight: 99
 
 ### Semgrep in vulnerability discovery
 
-- [Automating binary vulnerability discovery with Ghidra and Semgrep](https://security.humanativaspa.it/automating-binary-vulnerability-discovery-with-ghidra-and-semgrep/)
+- [Automating binary vulnerability discovery with Ghidra and Semgrep](https://hnsecurity.it/blog/automating-binary-vulnerability-discovery-with-ghidra-and-semgrep/)
 - :cinema: [Raining CVEs On WordPress Plugins With Semgrep | Nullcon Goa 2022](https://www.youtube.com/watch?v=RvKLn2ofMAo)
 - :cinema: [Automating Android App Vulnerability Discovery with Semgrep](https://www.youtube.com/watch?v=7ArHXmMITb0)