Appendix Security Requirements This article provides a summary of the security requirements necessary when using any of the Fire Station+ products (such as the Department Hub). Domains and IP Addresses The following domains used by Fire Station+ hub.firestationsoftware.com id.firestationsoftware.com apparatus-checks.platform.firestationsoftware.com field-reports.firestationsoftware.com The following IP addresses are used by Fire Station+ 159.89.244.89 45.55.64.197 45.55.69.140 45.55.66.17 159.203.150.119 159.65.33.78 This list is subject to change. Certificate Trust Fire Station+ uses HTTPS to encrypt data sent over the internet. The SSL certificate used to establish a trusted connection is distributed by Let's Encrypt. Your computer must include the ISRG Root X1 certificate as a trusted root CA certificate. This should be included automatically, under most circumstances. If you need to install this certificate, it can be downloaded using the following link: https://letsencrypt.org/certs/isrgrootx1.pem The SHA-1 fingerprint of this certificate is:  CA:BD:2A:79:A1:07:6A:31:F2:1D:25:36:35:CB:03:9D:43:29:A5:E8 If this certificate is not trusted you may see an error stating that "The SSL Connection could not be established".   TLS/HTTPS Requirements Fire Station+ is compatible with TLS 1.2 or TLS 1.3 and supports the following ciphers. ECDHE-ECDSA-AES128-GCM-SHA256 ECDHE-RSA-AES128-GCM-SHA256 ECDHE-ECDSA-AES256-GCM-SHA384 ECDHE-RSA-AES256-GCM-SHA384 ECDHE-ECDSA-CHACHA20-POLY1305 ECDHE-RSA-CHACHA20-POLY1305 DHE-RSA-AES128-GCM-SHA256 DHE-RSA-AES256-GCM-SHA384 ECDHE-RSA-AES256-SHA384