第5回 PuTTYでSSH2接続

  • PuTTYでSSH2接続(1)
    • Windowsマシンからリモートで操作したい！
    • PuTTYの入手とインストール
    • PuTTYでサーバにアセクスする（パスワード認証）
  • PuTTYでSSH2接続(2)
    • PuTTYでサーバにアセクスする（パスフレーズ認証）
    • パスフレーズ認証の設定
  • PuTTYでSSH2接続(3)
    • 後始末－SSHのセキュリティを高める
    • 役に立つサイト
  • PuTTYでSSH2接続(4)
    • [参考]sshd_configの内容（初期設定）

[参考]sshd_configの内容（初期設定）

SSHの設定ファイル（sshd_config）は/etc/sshフォルダ以下にあります。

# Package generated configuration file
# See the sshd(8) manpage for details

# What ports, IPs and protocols we listen for
Port 22
# Use these options to restrict which interfaces/protocols sshd will bind to
#ListenAddress ::
#ListenAddress 0.0.0.0
Protocol 2
# HostKeys for protocol version 2
HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_dsa_key
#Privilege Separation is turned on for security
UsePrivilegeSeparation yes

# Lifetime and size of ephemeral version 1 server key
KeyRegenerationInterval 3600
ServerKeyBits 768

# Logging
SyslogFacility AUTH
LogLevel INFO

# Authentication:
LoginGraceTime 600
PermitRootLogin yes
StrictModes yes

RSAAuthentication yes
PubkeyAuthentication yes
#AuthorizedKeysFile %h/.ssh/authorized_keys

# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts yes
# For this to work you will also need host keys in /etc/ssh_known_hosts
RhostsRSAAuthentication no
# similar for protocol version 2
HostbasedAuthentication no
# Uncomment if you don't trust ~/.ssh/known_hosts for RhostsRSAAuthentication
#IgnoreUserKnownHosts yes

# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords no

# Change to no to disable s/key passwords
#ChallengeResponseAuthentication yes

# Change to yes to enable tunnelled clear text passwords
PasswordAuthentication no


# To change Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#AFSTokenPassing no
#KerberosTicketCleanup no

# Kerberos TGT Passing does only work with the AFS kaserver
#KerberosTgtPassing yes

X11Forwarding no
X11DisplayOffset 10
PrintMotd no
PrintLastLog yes
KeepAlive yes
#UseLogin no

#MaxStartups 10:30:60
#Banner /etc/issue.net

Subsystem sftp /usr/lib/sftp-server

UsePAM yes