SQL Joins Diagram
For those who love SQL :-) Source: Data Visualisation
$
ls -la posts/
All Posts
MySQL innodb_buffer_pool_size optimal value
innodb_buffer_pool_size is a quite important MySQL configuration parameter which can dramatically increase your DB productivity. The larger you set this value, the less disk I/O is needed to access...
HTTP Error 400: Size of a request header field exceeds server limit
I have got an error generated by Apache while configuring Plexcel (PHP Active Directory module): Error 400: Your browser sent a request that this server could not understand. Size of a request header...
Google Chrome Spell Check - crazy message after update
I have updated Google Chrome on Red Hat Linux. And to my surprise after restarting Google Chrome I got this: "bettar spell chek" - o la la!The first idea: maybe there is a problem with my Linux box?...
NetBeans 7.3: Cannot execute Google Chrome
I have got today an error in NetBeans 7.3 while starting a HTML5 application in Google Chrome: Cannot execute /opt/google/chrome/chrome. Check external browser configuration. The solution was simple:...
How to check DNS cache status in Mac OS X
As a follow-up to How to Flush DNS Cache in Mac OS X I have received a question: how do I know if it worked? In other words, is there a way to check if the DNS cache is cleared? To see the DNS cache...
.PFX certificate installation on Apache
I have got a PFX made with Windows Certificate Services to be installed on Apache. So, using OpenSSL the file (source.pfx) has been converted to Apache compatible format: openssl pkcs12 -in...
Apache Solr non-ASCII characters
This day I had a problem while indexing French and Russian content with Apache Solr: French and Russian characters where corrupted. The solution was very simple: I added URIEncoding="UTF-8" attribute...
Samba start / restart error: smbd_open_once_socket: open_socket_in: Addr
Once I have got this problem with samba in Oracle Linux 6 (the same I could reproduce in RedHat 6 as well):On start or restart of smb service var/log/samba/log.smbd reports:...
Your branch is ahead of 'origin/master' by 3 commits or dangling commits
Once upon a time, namely today, I run # git status and to my big surprise I have got: # On branch master# Your branch is ahead of 'origin/master' by 3 commits.#nothing to commit (working directory...