How To: Redirect HTTP Traffic to Proxy Using iptables
Proxy Madness Using Squid or any other proxy for transparent caching/filtering of HTTP traffic has many benefits, being for logging purposes or the aforementioned use-cases, keeping every client configured can be a nuance. Networking equipment from Cisco and Juniper has the ability to redirect all passing HTTP traffic, in IOS and JunOS respectively, to the […]
How To: Netcat – Check for open ports with the command line
Kitty Port-checking When troubleshooting a network integration or any other connection issue in Linux, step one is usually a matter of checking to see if the network port on the other side is even responding. Netcat -The network Swiss Army knife (Hobbit, not nmap)- is the right tool for the job. Before we begin, NetCat […]
Client side Security, How’s My SSL? (.com)
Years ago, Moxie Marlinspike taught us that web-browser hints such as a “lock icon” in the address bar, didn’t guarantee ciphered communication. Since the website you are visiting still happily falls back to plain http since you, the user, made an effort to not be redirected from a clear to ciphered session… Not really. Man-In-The-Middle […]
How To: Encrypt/Decrypt File with OpenSSL
Encrypt/Decrypt File When security and integrity of a file is critical, such as with x509 certificates or other important documents, OpenSSL or other variant can be used to secure the file. With strong encryption and -hopefully- a strong password. OpenSSL is generally available on all UNIX variants, downloadable as an executable for Windows and is […]