Renew the SSL certificate Not required if SSL stuff was not installed, Ex.: 4 MiB installation. Same old key used for brevity, some RTFM required for completeness. cd /tmp scp root@routerlogin.net:/etc/prosody/certs/localhost.[ck]e* . openssl req -new -x509 -days 365 -nodes -out “localhost.cert” -key “localhost.key” scp localhost.[ck]e* root@routerlogin.net:/etc/prosody/certs/

Source: OpenWrt Project: Prosody XMPP Server (open messaging protocol)