Réaliser l'installation et faire les mises à jour: https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_Jessie

• To enable SSH login for a root user on Debian Linux system you need to first configure SSH server. Open

  /etc/ssh/sshd_config

  and change the following lines:

  -->LINE:
  PermitRootLogin without-password
  -->INTO:
  PermitRootLogin yes
  
  AND
  PasswordAuthentication yes 

• Restart server ssh:

  invoke-rc.d ssh restart 

• Install “ethtool”

  apt-get install ethtool

• ethtool eth0

  Settings for eth0:
  	Supported ports: [ TP MII ]
  	Supported link modes:   10baseT/Half 10baseT/Full 
  	                        100baseT/Half 100baseT/Full 
  	                        1000baseT/Half 1000baseT/Full 
  	Supported pause frame use: No
  	Supports auto-negotiation: Yes
  	Advertised link modes:  10baseT/Half 10baseT/Full 
  	                        100baseT/Half 100baseT/Full 
  	                        1000baseT/Half 1000baseT/Full 
  	Advertised pause frame use: Symmetric Receive-only
  	Advertised auto-negotiation: Yes
  	Link partner advertised link modes:  10baseT/Half 10baseT/Full 
  	                                     100baseT/Half 100baseT/Full 
  	                                     1000baseT/Full 
  	Link partner advertised pause frame use: Symmetric Receive-only
  	Link partner advertised auto-negotiation: Yes
  	Speed: 1000Mb/s
  	Duplex: Full
  	Port: MII
  	PHYAD: 0
  	Transceiver: internal
  	Auto-negotiation: on
  	Supports Wake-on: pumbg
  	Wake-on: d
  	Current message level: 0x00000033 (51)
  			       drv probe ifdown ifup
  	Link detected: yes 

  –> il faut passer “Supports Wake-on:” de “d” à “g” (source: https://wiki.debian.org/fr/WakeOnLan)

  • ethtool -s eth0 wol g 

  • nano /etc/network/interfaces

    Ajout dans la rubrique eth0:

    post-up /sbin/ethtool -s $IFACE wol g
    post-down /sbin/ethtool -s $IFACE wol g

Selon le wiki officiel: https://pve.proxmox.com/wiki/Install_Proxmox_VE_on_Debian_Jessie

• Config' de Postfix: “site internet” —> “debian-proxmox.guedel.eu”
• eth0: actif: non, démarrage auto: non, Ports/Esclaves:-, IP: 192.168.2.150, masque: 255.255.255.0
• eth1: actif: non, démarrage auto: non, Ports/Esclaves:-, IP:-, masque:-
• vmbr0: actif: oui, démarrage auito: oui, Ports/Esclaves: eth0 (très important pour pouvoir continuer à se connecter à proxmox et à débian!!), IP: 192.168.2.151, Masque:255.255.255.0, Passerelle: 192.168.2.5

• vmbr1: IP: 192.168.10.1, 255.255.255.0 Ports: aucun, démarrage auto, actif
• vmbr2: IP: 192.168.11.1, 255.255.255.0 Ports: aucun, démarrage auto, actif

Source
After a fresh installation of pfSense as a VM on Proxmox, the maximum network speed of pfSense for gateway job is only ~170kB/s.

There exists a bug in the FreeBSD VirtIO network drivers that massively degrades network throughput on a pfSense server. VirtIO is the interface of choice for Proxmox users and this problem can become troublesome.

The solution is to disable Hardware Checksum Offloading in pfSense. This is in System → Advanced → Networking tab. Tick the Disable hardware checksum offload box. You now need to reboot pfSense for this to take effect.