Build a mini Linux from scratch (7)

31. Compile and install Dropbear

32. When creating a remote login, use the directory

33. Generate a key file for the target system

34. Setting up a secure shells

35. Turn on the Network Service conversion function

36. Copy the corresponding library file, the path to correspond, not the creation of

37. Testing

31. Compile and install Dropbear

Dropbear is a relatively small SSH server and client

[[email protected] ~]# tar xf dropbear-2016.73.tar.bz2[[email protected] ~] # cd dropbear-2016.73[[email protected] dropbear-2016.73]# ./configure[[email  Protected] dropbear-2016.73]# make && make install copy the corresponding directory to the target host directory ( Created if the directory does not exist) [[email protected] dropbear-2016.73]# which dropbear/usr/local/sbin/dropbear[[ Email protected] dropbear-2016.73]# mkdir /mnt/sysroot/usr/local/sbin/ -pvmkdir:  created directory  '/mnt/sysroot/usr/local ' mkdir: created directory  '/mnt/ Sysroot/usr/local/sbin/' [[Email protected] dropbear-2016.73]# cp /usr/local/sbin/dropbear  /mnt/sysroot/usr/local/sbin/[[email protected] dropbear-2016.73]# which dropbearkey/ usr/local/bin/dropbearkey[[email protected] dropbear-2016.73]# mkdir /mnt/sysroot/usr/ local/bin/ -pvmkdir: created directory  '/mnt/sysroot/usr/local/bin/' [[EMAIL PROTECTED] DROPBEAR-2016.73]# CP  /usr/local/bin/dropbearkey /mnt/sysroot/usr/local/bin/[[email protected] dropbear-2016.73 ]# which dbclient/usr/local/bin/dbclient[[email protected] dropbear-2016.73]# cp  /usr/local/bin/dbclient /mnt/sysroot/usr/local/bin/[[email protected] dropbear-2016.73]#  tree /mnt/sysroot/usr/local//mnt/sysroot/usr/local/├── bin│   ├──  dbclient│   └── dropbearkey└── sbin    └── dropbear2  Directories, 3 files

32. When creating a remote login, use the directory

[[email protected] dropbear-2016.73]# cd/mnt/sysroot/[[email protected] sysroot]# mkdir dev/pts[[email protected]  sysroot]# vim Etc/fstabsysfs/sys sysfs defaults 0 0proc/proc proc defaults 0 0/dev/sda1/boot ext4 defaults 0 0/dev/sda2 /ext4 defaults 0 0devpts/dev/pts devpts mode=620 0 0--Add this line to enable automatic mount; mode means permission

33. Generate a key file for the target system

[[email protected] sysroot]# mkdir etc/dropbear[[email protected] sysroot]# CD Etc/dropbear/[[email protected] dropbear] # dropbearkey-t Rsa-s 2048-f dropbear_rsa_host_key[[email protected] dropbear]# dropbearkey-t dss-f Dropbear_dss_hos T_key

34. Setting up a secure shells

[Email protected] sysroot]# vim Etc/shells/bin/bash/bin/ash/bin/sh/bin/hush/sbin/nologin

35. Turn on the Network Service conversion function

[[email protected] sysroot]# VIM etc/nsswitch.confpasswd:filesgroup:filesshadow:fileshosts:files DNS

36. Copy the corresponding library file, the path to correspond, not the creation of

[Email protected] sysroot]# mkdir usr/lib64[[email protected] sysroot]# cp-d/lib64/libnss_files* lib64/[[email Protect Ed] sysroot]# cp-d/usr/lib64/libnss3.so usr/lib64/[[email protected] sysroot]# cp-d/usr/lib64/libnssutil3.so usr/lib6 4/[[email protected] sysroot]# cp-d/usr/lib64/libnss_files* usr/lib64/

37. Testing

[[email protected] sysroot]# sync[[email protected] sysroot]# sync off host open mini Linux boot dropbear program use another Linux SSH login to Mini Linux

This article is from the "Homecoming" blog, make sure to keep this source http://sixijie123.blog.51cto.com/11880770/1882126

Build a mini Linux from scratch (7)