SSH Talk Notes
Geoffrey D. Bennett <geoffrey@netcraft.com.au>
Copyright NetCraft Australia 2000

- What is ssh
  - Second most useful sysadmin tool
- Why use it
- Alternatives
  - ssltelnet
- How it works (crypto stuff)
- Licensing
- SSH 1.2
  - http://www.ssh.com/
  - ftp://ftp.aarnet.edu.au/pub/replay/linux/redhat/i386/
    - ssh, ssh-clients, ssh-server
- OpenSSH
  - http://www.openssh.com/
  - ftp://ftp.aarnet.edu.au/pub/openbsd/OpenSSH/portable/rpm/
    - openssh, openssh-clients, openssh-server
    - openssl
- How to use it
  - ssh host
  - ssh user@host
  - ssh host commandname
  - scp
- X
- Compression (-C)
- How to configure it
  - /etc/ssh_config
    - ForwardAgent
    - Compression
  - /etc/sshd_config
    - Allowing logins as root (PermitRootLogin)
- Authenticating the server (~/.ssh/known_hosts)
- Authenticating the client
  - On the client:
    - ssh-keygen (~/.ssh/identity.pub)
  - On the server:
    - ~/.ssh/authorized_keys
- SSH Agent
  - ssh-agent startx
  - ssh-add
- Port redirection
  - local port: -Llocalport:remotehost:remoteport
  - remote port: -Rremoteport:localhost:localport
- Windows clients
  - Putty
    - http://www.chiark.greenend.org.uk/~sgtatham/putty.html
    - ftp://ftp.netcraft.com.au/pub/misc/putty/putty.exe
  - ttssh Teraterm plugin
    - http://www.zip.com.au/~roca/ttssh.html
- rsync -e ssh (& RSYNC_RSH=ssh)