RPM failed to start

When you’re running REDHAT/CENTOS platform for your server, sometimes the RPM wont run normally or become stuck. This caused by the RPM database not properly builded or been corrupted.
Errors would be like :
rpmdb: Program version 4.3 doesn’t match environment version
error: db4 error(-30974) from dbenv->open: DB_VERSION_MISMATCH: Database environment version mismatch
error: cannot open Packages index using [...]

Posted on February 20th, 2009 by Denie
Filed under: Linux, RPM | No Comments »

How to protect your website using simple PHP scripts

Just put below on your top line of the scripts :
$ips = array(”127.0.0.1″,”aaa.bbb.ccc”,”xxx.yyy.zzz”);
$userip = $_SERVER['REMOTE_ADDR'];
foreach ($ips as $ip) {
if (!preg_match(”/$ip/i”, $userip)) {
echo “Access Denied!”;
exit;
}
}
Notes:
$ips is the allowed IP address range
Other way, you can use .htaccess to protect directories/files.

Posted on February 20th, 2009 by Denie
Filed under: PHP, Scripting | No Comments »