New Zealand Linux

A lot of our customers have asked for firewalls, and since this is a common theme, i decided that I would help them out. Of course it can be a mission to learn how to make your own and what to do or not do, and some of the pre-made ones can be confusing.

So i decided to simplify it a little for you all by writing a firewall script. I originally took a script made by somebody else, then totally modified it to suit myself, then modified it again to suit any machine. You *should* be able to literally drop this in place on any server and have it *just work*.

All you need to do is edit the top couple of lines to set what ports you want open or closed. edit the other options (ie ssh port etc). Full instructions as follows

wget http://b.ri.mu/files/firewall
nano firewall # ctrl+x to exit when finished editing
chmod +x firewall
./firewall

If you are still able to connect to your VPS in all the usual ways then you can add that into your init scripts. To check what ports you have open and want the outside world to connect to you can use

netstat -pant |grep LISTEN

If you are unable to login then you may need to log into the console of your VPS at https://rimuhosting.com/cp/vps/console.jsp

Adding it into the init scripts

cp firewall /etc/init.d/firewall

Debian Based (debian.ubuntu etc)

update-rc.d firewall defaults

Centos/RPM based

chkconfig --add firewall

Okay, I have rolled the usual ‘upgrade all instances of wordpress’ script.

In this version i finally got around to checking the permissions prior to updating and changing the ownership of them back to that owner afterwards. This was breaking things and could be rather annoying before if you had more than 5  sites to fix permissions on.

Also, I did a database check to make sure your schema is the latest version, if not it will display the upgrade.php link which will do it for you (before it just showed that regardless)

Let me know if you have any bugs at all, or any problems.

Here’s your script to upgrade them all.

wget http://b.ri.mu/files/wordpress-upgrade-2.9.2.sh ; sh wordpress-upgrade-2.9.2.sh

Because the wordpress mu previous version has one less number (it shows up as 2.8.5 rather than 2.9.1.1 ) you may notice that it says
You have version 2.8.5’; located at /path/etc

Just ignore it, its not going to matter. so long as the version isn’t current. it needs to be upgraded

New WordPress came out last Friday, Sorry about the delay updating the script.

This script will update all instances of wordpress that are not the most current. Run it as root, it will make backups in /root/wp_upgrades of both databases and files in case things go wrong.

It will determine if its a WordPress or WordPress Multi User and apply the correct fix.

wget http://b.ri.mu/files/wordpress-upgrade-2.8.6.sh
sh wordpress-upgrade-2.8.6.sh

You may need to change the ownership of the wordpress files after install, I will fix this bug and write it into the script in the next couple of versions.

If you have any bugs or problems with it, please let me know.