移植ARM linux下远程连接工具dropbear
原文地址:http://www.cnblogs.com/NickQ/p/9010529.html
移植zlib
下载地址：https://github.com/madler/zlib/archive/v1.2.10.tar.gz
获取zlib并解压
wget https://github.com/madler/zlib/archive/v1.2.10.tar.gz -O zlib-1.2.10.tar.gz
tar -zxvf zlib-1.2.10.tar.gz生成Makefile
./configure --prefix=/usr/local/zlib --static编辑Makefile
CC=/opt/xtools/arm920t/bin/arm-linux-gcc
LDSHARED=/opt/xtools/arm920t/bin/arm-linux-gcc
CPP=/opt/xtools/arm920t/bin/arm-linux-gcc -E
AR=/opt/xtools/arm920t/bin/arm-linux-ar
prefix =`pwd`/install创建安装文件夹
mkdir install交叉编译
make && make install移植dropbear
下载地址：https://matt.ucc.asn.au/dropbear/releases/dropbear-2016.74.tar.bz2
获取并解压
wget https://matt.ucc.asn.au/dropbear/releases/dropbear-2016.74.tar.bz2
tar -xjf dropbear-2016.74.tar.bz2创建安装文件夹
cd ./dropbear-2016.74
mkdir install生成Makefile
./configure --prefix=`pwd`/install --with-zlib=`pwd`/../zlib-1.2.10/install CC=/opt/xtools/arm920t/bin/arm-linux-gcc --host=arm编译安装
make PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp"
make PROGRAMS="dropbear dbclient dropbearkey dropbearconvert scp" install生成的文件树
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179930 查看本文章
[root@XQLY install]$ tree ./
./
├── bin
│ ├── dbclient
│ ├── dropbearconvert
│ ├── dropbearkey
│ └── scp
├── sbin
│ └── dropbear
└── share
└── man
├── man1
│ ├── dbclient.1
│ ├── dropbearconvert.1
│ └── dropbearkey.1
└── man8
└── dropbear.8打包生成的文件
tar -czf dropbear.nick.tar.gz ./install开发板下载并解压这个包，并将bin,sbin放置到/usr/sbin路径下即可。（记得赋予可执行权限）
配置dropbear,生成rsa，dss密匙
mkdir /etc/dropbear
dropbearkey -t dss -f /etc/dropbear/dropbear_dss_host_key
dropbearkey -t rsa -s 4096 -f /etc/dropbear/dropbear_rsa_host_key加入启动项
vim /etc/init.d/S00_dropbear
添加 /usr/sbin/dropbear -R测试
/etc/init.d/S00_dropbear其他
关闭
killall dropbear查看进程
[root@NickQ_fl2440 ~]# ps
PID USER VSZ STAT COMMAND
1 root 2204 S {linuxrc} init
2 root 0 SW [kthreadd]
省略部分内核进程
988 root 0 SW< [kpsmoused]
1009 root 0 SWN [jffs2_gcd_mtd2]
1020 root 2180 S /usr/sbin/dropbear -R
1026 root 2208 S -sh
1027 root 2204 S /sbin/syslogd -n
1028 root 2204 S /sbin/klogd -n
1031 root 2208 R ps查看端口监听状态
[root@NickQ_fl2440 ~]# netstat -tlnp
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN 1020/dropbear
tcp 0 0 :::22 遇到的问题
使用SecureCRT连接，提示
The remote system refused the connection.最后发现是SecureCRT设置的IP不对。（简直是快要被自己蠢哭了）
如图
开发板IP：
SecureCRT设置的IP:
