Conda 源配置

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channels:
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/conda-forge
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/msys2
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/r
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/main
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/pkgs/free/
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/msys2 
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/bioconda
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/menpo
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/pytorch
  - https://mirrors.tuna.tsinghua.edu.cn/anaconda/cloud/simpleitk
auto_activate_base: false
show_channel_urls: true

查看当前源

conda config --show channels
conda config --show-sources

删除源

conda config --remove channels xxx

ssh

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想用 A 主机通过 ssh 连接到 B 主机，报错 Connection refused。

输入下面的命令，查看是否有 sshd 字样输出

ps -e | grep ssh

如果没有说明 sshd 没有启动，运行

systemctl restart sshd

如果报错 Failed to restart sshd.service: Unit sshd.service not found.

sudo apt install openssh-server