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README
Apache-2.0

SSH-Security

介绍

SSH-Security 是一个用于 Linux SSH安全防护的小工具

软件架构

软件工具为了更好的进行集群化使用,做成了C/S架构,数据存储使用Sqlite

Server:

Server端负责数据记录存储,主要记录agent上报的攻击记录,以及存储白名单IP或网段,同时还负责将agent上报的数据注册为Prometheus指标,可以用Prometheus来抓取登录的指标数据

Agent:

Agent端负责读取ssh登录数据和iptables规则数据,再根据server端的黑白名单数据进行处理,对暴力破解的IP添加iptables规则进行拦截,对于在白名单中的IP则进行iptables规则删除,进行解封

title: SSH-Security 运行流程
participant Server as node
participant ss_agent as agent
participant ss_server as server
participant SQLite as sql

agent -> node: 读取ssh登录失败信息
node --> agent: 返回btmp记录数据
agent -> node: 读取已被禁止的IP
node --> agent: 返回INPUT链中被drop的IP
agent -> server: 请求白名单IP记录表
server -> sql: 查询数据库中白名单记录
sql --> agent: 返回白名单IP数据
agent -> server: 请求黑名单IP记录表
server -> sql: 查询数据库中黑名单记录
sql --> agent: 返回黑名单IP数据
agent -> agent: 对ssh登录失败IP进行比对处理
agent -> node: 根据比对结果增删对应的防火墙规则
agent --> server: 有新IP攻击时上报新黑名单IP
server -> sql: 写入数据保存记录
agent -> server: 上报所在节点的所有ssh登录失败统计数据

安装教程

项目运行需要有Linux golang开发环境: golang >= 1.19.12

将项目克隆到本地后,分别进入server和agent目录进行编译

agent端直接使用go编译即可

go build ss-agent.go

server端需要先拉取一下依赖

go get  //拉取依赖
go build ss-server.go
运行

编译出可执行文件后,运行可执行文件后会输出需要设置是参数选项

Usage: ./ss-server [options]
Options:
  -auth-token string
        Server API Auth Token (default "SSH-Security@12")
  -server-port string
        Se-Monitor Server Address (default "127.0.0.1:9109")

运行se-server时,需要指定两个参数

--auth-token 是用于设定ss-agent端请求时的认证密钥,默认是: SSH-Security@12
--server-port 用于设定ss-server的运行时监听的ip端口,默认是: 127.0.0.1:9109

运行se-agent时,需要指定两个参数

Usage: ./ss-agent [options]
Options:
  -auth-token string
        Server API Auth Token (default "SSH-Security@12")
  -server-api string
        Se-Monitor Server API (default "127.0.0.1:9109")

--auth-token 指定与ss-server端通信请求时的认证密钥,需要与ss-server端设置的一致,默认是: SSH-Security@12
--server-api 指定ss-server监听的IP端口

使用说明

在使用时建议在ss-server启动后,使用curl调用api接口向数据库中先添加白名单IP或在IP网段

curl --request POST \
  --url http://127.0.0.1:9109/report_whitelist_ip \
  --header 'Content-Type: application/json' \
  --header 'Authorization: SSH-Security@12' \
  --data '{"ip":"192.168.1.1/24"}'
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Linux SSH安全防护小工具 展开 收起
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