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The 43 Things Administrators Should Never Do Administrators have a tough job on their hands to manage, maintain and protect the network they are responsible for. Armed with the latest tools, they do an excellent job; however, at times, often due to pressure, they make mistakes – sometimes easily avoidable. In this post we are going to present the top 43 common mistakes administrators have made, as a reminder of what they shouldn’t do. They are categorized under networking, configuration, security, and best practices, and are based on firsthand experiences. Here is the list: Networking 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Configuration 11. 12. 13. 14. 15. 16. 17. 18. Security 19. 20. 21. 22. 23. 24. 25. 26. Best practices 27. 28. 29. 30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. If you can avoid doing the 43 things in this list, you will save yourself, and others, time and money, avoid headaches, and minimize downtime. Learned any lessons the hard way yourself?
Don't Get Screwed Over PHP Security Guide Maresalul Ion Antonescu Top 15 Open Source/Free Security/Hacking Tools | Security & Hacking Blog Stema Romaniei An Overview of Cryptography As an aside, the AES selection process managed by NIST was very public. A similar project, the New European Schemes for Signatures, Integrity and Encryption (NESSIE), was designed as an independent project meant to augment the work of NIST by putting out an open call for new cryptographic primitives. NESSIE ran from about 2000-2003. While several new algorithms were found during the NESSIE process, no new stream cipher survived cryptanalysis. As a result, the ECRYPT Stream Cipher Project (eSTREAM) was created, which has approved a number of new stream ciphers for both software and hardware implementation. CAST-128/256: CAST-128, described in Request for Comments (RFC) 2144, is a DES-like substitution-permutation crypto algorithm, employing a 128-bit key operating on a 64-bit block. A digression: Who invented PKC? 3.3. Let me reiterate that hashes are one-way encryption. A digression on hash collisions.
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