红帽全球峰会第 58 章 网络
在 Red Hat Enterprise Linux 7 中禁用了使用 MD5 hash 算法验证签名的功能
无法连接到需要 MD5 签名证书的任何 Wi-Fi Protected Access (WPA) Enterprise Access Point (AP)。要临时解决这个问题，将 wpa_supplicant.service 文件从 /usr/lib/systemd/system/ 目录复制到 /etc/systemd/system/ 目录中，并将以下行添加到文件的 Service 部分：
Environment=OPENSSL_ENABLE_MD5_VERIFY=1
Environment=OPENSSL_ENABLE_MD5_VERIFY=1
然后，以 root 用户身份运行 systemctl daemon-reload 命令来重新加载服务文件。
重要：请注意 MD5 证书是高度不安全的，红帽不推荐使用它们。(BZ#1062656)
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