IPsec (Internet Protocol security) is a set of protocols used to secure Internet Protocol (IP) communications. It provides confidentiality, data integrity, and authentication for IP packets in a network. IPsec can be used to create Virtual Private Networks (VPNs) over public networks such as the Internet or to secure communication between two private networks. It is widely used in enterprise environments to secure remote access connections and site-to-site communication between different locations. IPsec operates at the network layer of the OSI model and can be implemented using various encryption algorithms such as AES, 3DES, and DES.
![/// \brief parse endpoint.
/// \param[in] endpoint S3 endpoints to parse.
/// \param[out] host Endpoint host.
/// \param[out] port Endpoint port.
/// \return -1 means parsing failed, return 0 means parsing to host only, return 1 means parsing to h...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162233565655357.png)
