in case you have forgotten password for btsync Web UI, you can override it in config file.
For example on Debian it is located in: /etc/btsync/debconf-default.conf

Find webui section in configuration and add 2 options: username and password:

“login”: “admin”,
“password”: “password”

So “webui” configuration section will look like this:

[code]
“webui” :
{
“directory_root” : “/var/btsync”,
“listen” : “0.0.0.0:8888”,
“force_https” : true,
“ssl_certificate” : “/etc/btsync/debconf-default.crt”,
“ssl_private_key” : “/etc/btsync/debconf-default.key”,
“login”: “admin”,
“password”: “password”
}
[/code]
Now restart btsync serviceby running:
[code]service btsync restart[/code]

You can now login using username “admin” and password “password” and reset password in WebUI.