[{"createTime":1735734952000,"id":1,"img":"hwy_ms_500_252.jpeg","link":"https://activity.huaweicloud.com/cps.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=V1g3MDY4NTY=&utm_medium=cps&utm_campaign=201905","name":"华为云秒杀","status":9,"txt":"华为云38元秒杀","type":1,"updateTime":1735747411000,"userId":3},{"createTime":1736173885000,"id":2,"img":"txy_480_300.png","link":"https://cloud.tencent.com/act/cps/redirect?redirect=1077&cps_key=edb15096bfff75effaaa8c8bb66138bd&from=console","name":"腾讯云秒杀","status":9,"txt":"腾讯云限量秒杀","type":1,"updateTime":1736173885000,"userId":3},{"createTime":1736177492000,"id":3,"img":"aly_251_140.png","link":"https://www.aliyun.com/minisite/goods?userCode=pwp8kmv3","memo":"","name":"阿里云","status":9,"txt":"阿里云2折起","type":1,"updateTime":1736177492000,"userId":3},{"createTime":1735660800000,"id":4,"img":"vultr_560_300.png","link":"https://www.vultr.com/?ref=9603742-8H","name":"Vultr","status":9,"txt":"Vultr送$100","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":5,"img":"jdy_663_320.jpg","link":"https://3.cn/2ay1-e5t","name":"京东云","status":9,"txt":"京东云特惠专区","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":6,"img":"new_ads.png","link":"https://www.iodraw.com/ads","name":"发布广告","status":9,"txt":"发布广告","type":1,"updateTime":1735660800000,"userId":3},{"createTime":1735660800000,"id":7,"img":"yun_910_50.png","link":"https://activity.huaweicloud.com/discount_area_v5/index.html?fromacct=261f35b6-af54-4511-a2ca-910fa15905d1&utm_source=aXhpYW95YW5nOA===&utm_medium=cps&utm_campaign=201905","name":"底部","status":9,"txt":"高性能云服务器2折起","type":2,"updateTime":1735660800000,"userId":3}]
SSL 一般是很安全的,但自签SSL证书最容易受到SSL中间人攻击,基于 SSL 的 SSH 登录一般会在第一次要求验证公钥签名。
1、查看服务使用的密钥。
$ ls -1 /etc/ssh/ssh_host* >> 输出: /etc/ssh/ssh_host_ecdsa_key
/etc/ssh/ssh_host_ecdsa_key.pub /etc/ssh/ssh_host_ed25519_key
/etc/ssh/ssh_host_ed25519_key.pub /etc/ssh/ssh_host_rsa_key
/etc/ssh/ssh_host_rsa_key.pub
2、对服务器公钥进行签名。
$ cd /etc/ssh/ $ for file in *_key.pub; do ssh-keygen -E sha256 -lf $file; done
>> 输出: 256 SHA256:hjbZqDPI5X/vRo1rCOYyLW2jLaVuUYRW4olkySmirMo no comment (ECDSA)
256 SHA256:HchbHZxF5IF24Clo64FSIOlGKLx5a/MDBPWKCSK9FIM no comment (ED25519) 2048
SHA256:p1UFjBn1S2aIO5xU4UYeyG3efI/rGnyfolG/e+BFJVo no comment(RSA)
3、远程 SSH 登录,第一次登录会给出服务器公钥的签名。
此时,需要你肉眼比对终端设备给出的 SHA256 指纹,与步骤二中 SHA256
指纹,有任意一条匹配就能确定连接使用的公钥是对应的服务器的,也就可以安全链接,可以确定没有被中间人攻击。