Certificate Generation

Teltonika FMM640 is PROFESSIONAL worldwide tracker with LTE CAT M1, NB IoT connectivity, that makes this device usable with newest and most cost efficient technologies. FMM640 features like FMS CAN data (J1939), fuel CAN data (J1708), tachograph live data (K-line), remote tachograph file download, various third party RS232 or RS485 devices support and Dual-SIM will maximize your fleet efficiency. Terminal is suitable for applications like international logistics, refrigerated transport, agriculture, construction & mining, security & emergency services.

MQTT: The Standard for IoT Messaging

MQTT is an OASIS standard messaging protocol for the Internet of Things (IoT). It is designed as an extremely lightweight publish/subscribe messaging transport that is ideal for connecting remote devices with a small code footprint and minimal network bandwidth. MQTT today is used in a wide variety of industries, such as automotive, manufacturing, telecommunications, oil and gas, etc. Learn More

Certificate Generation

--Create a CA key
openssl genrsa -des3 -out c1.key 2048

--Create CA certificate using the CA key
 openssl req -new -x509 -days 35600 -key c1.key -out c1.crt -subj "/C=US/ST=FL/L=FtLaud/O=GSE/OU=servers/CN=dev.mqtt.gsatcloud.com/emailAddress=admin@gsat.us"

--Create a broker(server) key
 openssl genrsa -out s1.key 2048

--Create Certificate Signing Request(CSR) for broker with broker(server) key
openssl req -new -out s1.csr -key s1.key

--Create broker(server) certificate
openssl x509 -req -in s1.csr -CA c1.crt -CAkey c1.key -CAcreateserial -out s1.crt -days 35600

--Create a client(device) key
 openssl genrsa -out d860186051730964.key 2048

--Create Certificate Signing Request(CSR) for client
openssl req -new -out d860186051730964.csr -key d860186051730964.key

--Create client(device) certificate
openssl x509 -req -in d860186051730964.csr -CA c1.crt -CAkey c1.key -CAcreateserial -out d860186051730964.crt -days 35600