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restrict ssh ciphers

This commit is contained in:
Jörg Thalheim 2015-01-08 11:47:18 +01:00
parent f2844607f3
commit 164d86761e
3 changed files with 13 additions and 4 deletions
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4
roles/container/tasks/ssh.yml
View File

@ -2,8 +2,8 @@
pacman: name=openssh state=present pacman: name=openssh state=present
- name: Write sshd_config - name: Write sshd_config
template: src=sshd_config.j2 dest=/etc/ssh/sshd_config mode=0644 template: src=sshd_config.j2 dest=/etc/ssh/sshd_config mode=0644
- name: symlink /dev/pts/ptmx to /dev/ptmx for sshd pty - name: Write ssh_config
file: src=/dev/pts/ptmx dest=/dev/ptmx state=link template: src=ssh_config.j2 dest=/etc/ssh/ssh_config mode=0644
- name: create link-ptmx.service - name: create link-ptmx.service
copy: src=link-ptmx.service dest=/etc/systemd/system/link-ptmx.service mode=0644 copy: src=link-ptmx.service dest=/etc/systemd/system/link-ptmx.service mode=0644
- name: enable link-ptmx.service - name: enable link-ptmx.service

4
roles/container/templates/ssh_config.j2 Normal file
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@ -0,0 +1,4 @@
Host *
KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,umac-128@openssh.com

9
roles/container/templates/sshd_config.j2
View File

@ -4,9 +4,10 @@ Port 22
AuthorizedKeysCommand /usr/lib/openssh-ldap-helper/openssh-ldap-helper AuthorizedKeysCommand /usr/lib/openssh-ldap-helper/openssh-ldap-helper
AuthorizedKeysCommandUser root AuthorizedKeysCommandUser root
{% else %} {% else %}
AuthorizedKeysFile .ssh/authorized_keys AuthorizedKeysFile .ssh/authorized_keys
{% endif %} {% endif %}
PermitRootLogin no
PasswordAuthentication no PasswordAuthentication no
ChallengeResponseAuthentication no ChallengeResponseAuthentication no
@ -14,4 +15,8 @@ UsePAM yes
PrintMotd no PrintMotd no
UsePrivilegeSeparation sandbox UsePrivilegeSeparation sandbox
Subsystem sftp /usr/lib/ssh/sftp-server Subsystem sftp usr/lib/ssh/sftp-server
KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,umac-128@openssh.com