The best regex tutorial I have seen

The next link is for visual tutorial about regex patterns:

Disable message "Windows detected a hard disk problem"

It happens in Windows 7. The current PC configuration has HDD S.M.A.R.T. problem but has worked with it for more that year. Windows XP has not such diagnostics, not Windows 7 detects the broken state and notifies me on a few hours. This is very irritating.

I found the solution of the problem:

maven - Uncompilable source code error

Caused by: java.lang.RuntimeException: Uncompilable source code - package xxxxxxx does not exist.

Solved - Windows cannot access samba shares after linux upgrade

I encounter this issue after apt-get upgrade / dist-upgrade in Debian. It is solved now.
The cause was a change in samba between versions 3.3.2 and 3.4.0.

Error "failed to get a socket for (null)" after upgrading apache httpd

The symptom: After an regular Debian update, when I tried to start apache, it show me this error:

(22)Invalid argument: alloc_listener: failed to get a socket for (null)
...
Syntax error on line xx of /etc/apache2/ports.conf:

The line was
Listen 80

Status on verification of signed file

Table with Digital Signature Status Values

Counter-signatures and signing a file with multiple certificates

Counter-signing is the action of signing data that includes another signature.