198 lines
4.3 KiB
Markdown
198 lines
4.3 KiB
Markdown
# aunt, machine physique (leparc)
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## Matériel
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Carte mère : 1 × Asus KGPN-D16 Rev 1.03G
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CPU : 2 × AMD Opteron 6282SE
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RAM : 7 × Crucial RDIMM 16Go CT2K16G3ERSLD4160B
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Alimentation : HX750
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Casier : 1 × Inter-Tech IPC 4U-4129-N SSI-EEB (Rack)
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Stockage de masse : 2 × KINGSTON SEDC500M1920G
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## Logiciel
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Micro-programme : GNU Boot 0.1-rc1
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Système d'exploitation : Trisquel GNU/Linux-libre 11 Aramo
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Noyau : Linux-libre
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Virtualisation : QEMU/KVM (`libvirt`)
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Gestion du onduleur : NUT/UPS
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Audit des paquets mensuel : `vrms`
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Sécurités de la maintenance : `etckeeper`, `mollyguard`, `tig`, `lm-sensors`, `fancontrol`, `screen`
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Mail Transfer Agent : `postfix`
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Réplication de stockage (vm) : `drbd`, `ocfs2`, `o2cb`
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## Caractéristiques notables
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Domaine : `aunt.libre-en-communs.org`
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Adresse ipv4 publique : `80.67.176.33`
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Adresse ipv4 locale : `192.168.1.3`
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Adresse ipv4 interne DRBD : `192.168.254.3`
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Adresse ipv6 publique : `2001:910:1021::3`
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### Configuration réseau
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#### /etc/network/interfaces
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<details>
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# The loopback network interface
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auto lo
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iface lo inet loopback
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# The primary network interface
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allow-hotplug ens9
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allow-hotplug ens10
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allow-hotplug ens13f0
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allow-hotplug ens13f1
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# mother!
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iface ens13f1 inet static
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address 192.168.254.3
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post-up /usr/bin/ip link set ens13f1 mtu 9000
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# bridge for vm
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auto br0
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iface br0 inet static
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bridge_ports ens13f0
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address 192.168.1.3
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gateway 192.168.0.1
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broadcast 192.168.255.255
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netmask 255.255.0.0
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iface br0 inet6 static
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bridge_ports ens13f0
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address 2001:910:1021::3/128
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gateway 2001:910:1021::
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</details>
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## Configuration SSH
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### /etc/ssh/sshd_config
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<details>
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Port 223
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AddressFamily any
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ListenAddress 0.0.0.0
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ListenAddress ::
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PubkeyAuthentication yes
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PasswordAuthentication no
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PermitEmptyPasswords no
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ChallengeResponseAuthentication no
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UsePAM yes
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AllowAgentForwarding yes
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AllowTcpForwarding yes
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GatewayPorts yes
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X11Forwarding no
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PrintMotd no
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TCPKeepAlive yes
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PermitTunnel yes
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AcceptEnv LANG LC_* GIT_*
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Subsystem sftp /usr/lib/openssh/sftp-server
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Match User admin666 Address *,!127.0.0.1,!::1
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DenyUsers admin666
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</details>
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## Configuration DRBD
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### /etc/drbd.d/drbd1.res
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<details>
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resource drbd1 {
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meta-disk internal;
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device /dev/drbd1;
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startup {
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become-primary-on both;
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}
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net {
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verify-alg sha256;
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allow-two-primaries yes;
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#fencing resource-and-stonith;
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after-sb-0pri discard-zero-changes;
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after-sb-1pri discard-secondary;
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protocol C;
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ko-count 0;
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timeout 119;
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ping-int 120;
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connect-int 120;
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#max-epoch-size 20000;
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max-buffers 36k;
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sndbuf-size 0;
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rcvbuf-size 0;
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}
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handlers {
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pri-lost-after-sb "killall virt-backup && umount /opt/sharedfs && drbdadm secondary drbd1";
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}
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disk {
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on-io-error pass_on;
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md-flushes;
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c-fill-target 10M;
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c-max-rate 700M;
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c-plan-ahead 0;
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c-min-rate 4M;
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resync-rate 500M;
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}
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on mother { # hostname must match `uname -n` output
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disk /dev/md1; # Logical Volume on the provided host
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address 192.168.254.2:7789; # IP Address to be used to connect to the node with port
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}
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on aunt { # hostname must match `uname -n` output
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disk /dev/md1; # Logical Volume on the provided host
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address 192.168.254.3:7789; # IP Address to be used to connect to the node with port
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}
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}
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</details>
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### /etc/ocfs2/cluster.conf
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<details>
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cluster:
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name = sharedfs
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heartbeat_mode = local
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node_count = 2
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node:
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cluster = sharedfs
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number = 0
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ip_port = 7777
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ip_address = 192.169.254.3
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name = aunt
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node:
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cluster = sharedfs
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number = 1
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ip_port = 7777
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ip_address = 192.169.254.2
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name = mother
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</details>
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## Configuration MTA
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### /etc/postfix/transport
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a-lec.org :
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* discard:
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### /etc/postfix/virtual
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@localhost admin@a-lec.org
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@aunt.libre-en-communs.org admin@a-lec.org
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