Entries Related to ‘OpenSSL’

Many network administrators know OpenSSL as a tool that implements Secure Sockets Layer (SSL) and Transport Layer Security (TLS) cryptographic protocols to secure your web surfing and email. But as we learned earlier this month, OpenSSL can do far more. With OpenSSL you can encrypt and decrypt files, verify file integrity, and see which encryption protocols and ciphers any server supports.

OpenSSL, the open source toolkit for implementing the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, is an everyday essential for most Linux admins responsible for secure networking. But OpenSSL includes a wealth of features that even grizzled veterans may not be familiar with. You can use OpenSSL to test POP and IMAP servers, and test server connection speeds, among other interesting tricks.

When you’re choosing a database, you’re making a long-term decision, because changing your mind later is difficult and expensive. You want to get it right the first time. Two popular open source databases, MySQL and PostgreSQL, are often the final two candidates when admins are preparing a new rollout. This high-level overview of these two open source powerhouses should help you choose which is more appropriate for your needs.

A recently-exposed a flaw in the current standard for the SSL/TLS protocol allows “man-in-the-middle” attacks, but fortunately there’s an interim fix included in OpenSSL release 0.9.8l. This article describes the solution and provides links to additional resources.

Building the Apache Web server on AIX is generally a straightforward enterprise in which you: obtain the code, run a few simple commands (configure, make, and make install) and then stop by your boss’s cube to ask if she’s got anything she’d like you to take off her plate.