Avoid Locking Yourself When You Are Configuring Policies In Access Restrictions
When you are trying to create policies in the Access Restrictions section of SafeSquid you may get locked out yourself. The first rule that matches a user is applied. You need to create atleast one Admin account, or you might lock yourself out on the WebGUI. This usually happens because any changes that you make in the web interface, is applied in real time to the configuration file which resides into the server's memory. The final changes are permanently stored into configuration file on the disk, only when you save the changes by clicking on the Save Config button on bottom left corner of the dashboard.
How the policies work
SafeSquid actually evaluates entries in the Access Restrictions one by one from top-down order matching each entry with the connection. Once a entry with an IP address or the user name matches a connection, the following entries will not be evaluated against that connection.
While you are trying to create an entry in the Access Restrictions, always make sure that there is at least one entry which is going to allow you to access the web interface (http://safesquid.cfg/). This in other words means that there must be a entry that matches your connections and has access to Web interface (Config) selected from the Access field.
Consider a scenario where you have three entries in Allow list of Access Restrictions section
- To access web interface via SSH tunnel.
- To bypass authentication.
- You're accessing the internet.
You have created another entry in which you have removed the Web interface(config) from the Access field of that rule and added it. The entry is added as fourth one and you have moved it to 3rd by clicking on move up button. Now the third entry matches your connections (since first is for SSH tunnels and second is for AUTHENTICATION BYPASS profile) in which you have disabled the Web interface. So you will be locked out and given a template Access Denied.
To avoid this kind of situation, you always need to maintain a entry that allows you to access the Web interface.
How to come out when you are locked yourself
- You have a couple of options to get of this situation. If you have a possibility to restart the SafeSquid service, just do a restart.
Check this Link for restarting SafeSquid from the terminal(Linux box).
- If you do not have a choice to restart the service, take an SSH tunnel and access the interface and correct the entries.
Check this Link to access the Web interface by taking an SSH tunnel.
SafeSquid service will restart with the default, or last saved configuration. This usually happens because any changes that you make in the web interface, is applied in real time to the configuration file which resides into the server's memory. The final changes are permanently stored into configuration file on the disk, only when you save the changes by clicking on the Save Config button on bottom left corner of the dashboard.