IPTables: Clear all rules

When you need to clear all rules and set the default police to ACCEPT.

 iptables-save | sed "/-/d;/^#/d;s/DROP/ACCEPT/" | iptables-restore

 This is not permanent. The default rules will be reloaded if IPTables, your firewall or the server is restarted.

Comments

Post a Comment

Popular posts from this blog

Linux: Permanent CIFS/SMB mount

I needed to permanently mount a directory on a Windows server that had spaces in the path. I also wanted to use a credentials file so that the remote server username and password would not be in the world readable fstab file. The following was cobbled together from: Mount samba shares with utf8 encoding using cifs and: Mount password protected network folders Create a credentials file (as root) containing the username and password and restrict it's ability to be read by other users (/etc/fstab is world readable). vi /root/.smbcredentials username=someusername password=somepassword Save and exit the file. Change the file permissions to only be readable by root. chmod 600 /root/.smbcredentials Update the fstab file Add the following line to /etc/fstab (spaces are replaced with \040  or the mount will fail) // ip address / c$/Program\040Files/Microsoft\040SQL\040Server/ /var/backups/Server cifs credentials=/root/.smbcredentials,iocharset=utf8,sec=ntlm 0 0 Exit ...
Read more

Google Chrome: Manage Flash Sites

Image
The HTML5 client for VMware is missing some functionality so I need to run the Flash client in Google Chrome. I normally run the Canary or Dev channels of Chrome and the ability to add or block a sites ability to run Flash seems to have disappeared from Settings -> Advanced -> Content Settings -> Flash. It is still there in the Stable channel. My default Flash setting in all is "Ask First", but nothing happens in  Canary and Dev As per the instructions on: https://support.google.com/chrome/answer/6258784?co=GENIE.Platform%3DDesktop&hl=en The site needs Flash to work If a website isn’t working, you might need to change your settings to allow Flash. To the left of the web address, click Lock   or Info  . At the bottom, click Site Settings. In the new tab, to the right of "Flash," click Allow. Go back to the site and reload the page.
Read more

Plesk - Decrypt FTP Passwords

I was working on a project where Plesk user details were being imported into a database and it would help to know the password. Since Plesk 11 the Plesk Client account is hashed which makes it unrecoverable, but other passwords are encrypted with 128 bit AES encryption and a salt. If the FTP login name is the same as the client login there is a chance the customer was lazy and used the same details. To decrypt the passwords you will need the server secret key and the password string from the plesk database. The server secret key can be retrieved with the following command on a linux server: cat /etc/psa/private/secret_key | base64 Matching FTP logins (and their encrypted password) can be retrieved from the Plesk database with: SELECT REPLACE(s.home, '/var/www/vhosts/', '') AS domain, c.login, a.password FROM clients c LEFT JOIN sys_users s ON s.login = c.login LEFT JOIN accounts a on s.account_id = a.id; The results will look like: +-------------------...
Read more