Software Engineer Notes (Ziv Birer blog)

When Apache run on linux, there are several usefull commands: Assumption: Apache is installed on /sw/pkg/apache. See server status /sw/pkg/apache/bin/apachectl Validate configuration files /sw/pkg/apache/bin/httpd -t Stop apache /sw/pkg/apache/bin/apachectl -k stop See server version /sw/pkg/apache/bin/httpd -v See who listen on port 80 netstat  | grep 80 netstat -ltnp | grep ':80'

When SSL connection to server fails, first retry the connection using Chrome. Chrome give more information on the problem. Below is list of Chrome errors and possible ways to troubleshoot them.

openssl is great tool but it is hard to remember its usage ... here is my summary.

Summary of page  Compiling and Installing - Apache HTTP Server Download files Download (1) apr (2) apr-util (3) pcre (4) httpd. apr and apr-utils from http://apr.apache.org/ .   pcre  from  http://www.pcre.org/ httpd  from  http://httpd.apache.org/download.cgi    Compile APR tar -xvzf apr-1.4.6.tar.gz cd apr-1.4.6/ ./configure make make install Compile APR-UTIL tar -xvzf apr-util-1.4.1.tar.gz cd apr-util-1.4.1 ./configure --with-apr=/usr/local/apr make make install Compile PCRE cd pcre-8.31 ./configure --with-apr=/usr/local/apr make make install Compile HTTPD tar -xvzf httpd-2.4.1.tar.gz cd httpd-2.4.1 ./configure --enable-file-cache --enable-cache --enable-disk-cache --enable-mem-cache --enable-deflate --enable-expires --enable-headers --enable-usertrack --enable-ssl --enable-cgi --enable-vhost-alias --enable-rewrite --enable-so --with-apr=/usr/local/apr/ --prefix=/sw/pkg/apache make make install cd ..

PKI = Public Key Infrastructure (Resource)  Method of asserting the identity and validity of a person (or entity) that you have not previously met or interacted. It use of certificates containing identifying information and public keys (these certificates are more properly called X.509 certificates). PKI accomplishes this by defining a central authority who is mutually trusted by all users of the system.

Here is my summary on SSL (or as I like to call it 'SSL for dummies')

I never remember what happens when digital signature is used. So here is my summary 'Digital signature for dummies'.

I started working on security issues. There are many terms that need to be understood. So I write short explanation of them:

Shortcuts CTRL B,T Toggle bookmark CTRL M,P Stop outlining SHIFT F12 Find references CTRL , Show navigation to last files CTRL ] Go to matching brace CTRL i Incremental search

PowerPro is the best utility I know. It allow many good things. I wrote script that is invoked by some key to track my activities during the day:

EditBox  - Eclipse plugin for highlighting the background of the source code.

When restoring QC project:

Patches for HP ALM (QC) cab be downloaded from Patch Search