运维2017.9.4

  1. ufw
    ufw enable
    之后一定要打开ssh端口！！
    ufw open a range of ports:
    ufw allow 11200:11299/tcp

And don’t forget ufw reload

  1. mosh
    Two major problems：
    ssh_exchange_identification: Connection closed by remote host
    非默认端口需要按一下命令执行：
    mosh –ssh=”ssh -p 8022” root@cds.yuqianshan.com

The locale requested by LC_CTYPE=UTF-8 isn’t available here.
需要保持server和client的LC_ALL, LANG一致
将以下代码加入mac的.zshrc中即可：
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8

（最终需要source .zshrc）

  1. ssh-keygen -t rsa
    http://blog.csdn.net/leexide/article/details/17252369
    ssh-keygen -t rsa
    scp id_rsa.pub root@192.168.1.4:/.ssh/authorized_keys
    ipv6:
    scp -6 id_rsa.pub qianshan@[2402:f000:1:5003:c1bb:6e61:d4e:acd8]:    /.ssh/authorized_key

cat /etc/hosts
192.168.1.2 Server1
192.168.1.3 Server2
192.168.1.4 Server3

ssh Server3

  1. ohmyzsh
    注意passwd文件的改动，可能会导致无法登陆
    先安装zsh (apt-get等)
    然后wget https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh -O - | sh
    切换zsh: chsh -s /usr/local/bin/zsh (chsh -s which zsh)
    theme: 修改.zshrc (ZSH_THEME=”bira”)
    source:
    http://yijiebuyi.com/blog/b9b5e1ebb719f22475c38c4819ab8151.html

  2. sshd_config
    https://segmentfault.com/a/1190000000481249
    http://blog.csdn.net/lansesl2008/article/details/16113193

  3. smbmount
    https://segmentfault.com/a/1190000002548622

  4. ftp
    FTP Issue - Failed to retrieve directory listing
    Solution:
    This happens when you have firewall configured and have kept only port 20 and 21 opened. Change the FTP client to connect using Active or the PORT method and you will be able to connect to the FTP and retrieve the directory listing. Or else you can try after disabling the firewall.
    Passive对应其他端口，需要打开或者关闭防火墙。

550 Failed to change directory.