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 db3 – (-30974)
error: cannot open Packages database in /var/lib/rpmrpmdb: 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 database in /var/lib/rpm
So, to solve those issues,
you can run these commands from ROOT access:
rm -f /var/lib/rpm/__db*
rpm -vv –rebuilddb
The ‘-vv’ parameter on rpm, will STDOUT.
To run it as background process, do:
rpm –rebuilddb &
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.
