advanced persistent threat apt 高级持续威胁covert cybear attack 隐蔽网路攻击unauthorized access 未授权的访问multi-staged attack 多阶段的攻击the time between infection and remendiation 在感染和补救期间senstive data 敏感数据network outage 网路故障denial of service 拒绝服务social engineering tactics 社会工程学方法the network layer 网络层advoid congestion 避免网络拥塞flow control 流控制quality of service 服务质量traffic shaping 流量调整admission control 准入控制喽resource reservationprotoclo 资源预留协议multi protocol label switching 多协议标记交换secure shell ssh 安全外壳remote command -line 远程命令行remote command excution 远程命令执行c/s model 客户/服务器模式public key cyptography 公钥密码加密strong symmetric 强对称use authentication 用户认证public key authentication 公钥认证interenet protocol security ipsec 网际协议安全the suite of protocol 整套协议authenticcation and encryption 身份证和密码ipsec.tunneling 隧道virtual private network vpn 虚拟转容网络from host to host 主机到主机transport layer secturity tls 传输层安全