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Computer/Network tips, tricks and other stuff I always forget

Archive for the ‘Operating Systems’ Category

SSL Cert Manipulation

Thursday, January 3rd, 2008 Posted in Linux, Operating Systems | No Comments »

OpenSSL CLI Conversion Commands Converting a p12 / pfx bundle to a user certificate and private key file e.g. going from IIS to Apache $> openssl pkcs12 -in cert.p12 -clcerts -nokeys -out cert.pem $> openssl pkcs12 -in cert.p12 -nocerts -out key.pem Convert a certificate ...

Citrix Hacking

Monday, October 8th, 2007 Posted in General Security, Operating Systems | 2 Comments »

I just read this great post on GNU Citizen about hacking Citrix.  I have not worked much with Citrix but the post and accompanying videos were a real eye opener.  I quickly checked the one app that I know of ...

Email using Telnet

Friday, September 14th, 2007 Posted in Linux, Operating Systems | No Comments »

I always forget the exact commands for this so here it is as a blog entry. Telnet to hostname on port 25 220 (then identifies itself - possibly with several lines of 220 + text) HELO your_domain_name or whatever 250 (followed by ...