diff --git a/docs/TODO b/docs/TODO
index 6ebdab7..eead191 100644
--- a/docs/TODO
+++ b/docs/TODO
@@ -24,3 +24,10 @@ SSH keys per project, auto-generate
 
 #     "backend_transfer_enabled": false
 
+hostnames for backend
+
+bonding
+modprobe bonding
+
+AMD Secure Encrypted Virtualization (SEV)
+
diff --git a/etc/network/interfaces-bond b/etc/network/interfaces-bond
new file mode 100644
index 0000000..02c9cd8
--- /dev/null
+++ b/etc/network/interfaces-bond
@@ -0,0 +1,24 @@
+source /etc/network/interfaces.d/*
+auto lo
+iface lo inet loopback
+
+auto bond0
+iface bond0 inet static
+	address 192.168.1.101/31
+	#address 192.168.1.100
+	netmask 255.255.255.254
+	gateway 192.168.10.100
+	bond-downdelay 200
+	bond-miimon 100
+	bond-mode 4
+	bond-updelay 200
+	bond-xmit_hash_policy layer3+4
+	bond-lacp-rate 1
+	bond-slaves ens3f0 ens3f1
+
+auto bond0:0
+iface bond0:0 inet static
+	address 10.0.0.1/31
+    post-up route add -net 10.0.0.0/8 gw 10.0.0.0
+    post-down route del -net 10.0.0.0/8 gw 10.0.0.0
+
diff --git a/preseed/preseed.cfg b/preseed/preseed.cfg
index 1f3848a..efdbe11 100644
--- a/preseed/preseed.cfg
+++ b/preseed/preseed.cfg
@@ -39,7 +39,7 @@ d-i partman/confirm_nooverwrite boolean true
 
 d-i base-installer/install-recommends boolean false
 tasksel tasksel/first multiselect standard
-d-i pkgsel/include string openssh-server sudo iptables apt-transport-https bzip2 ca-certificates colordiff cpufrequtils curl debian-archive-keyring exuberant-ctags git haveged host less locales lsb-release lshw net-tools nvme-cli ntp parted rsync telnet traceroute vim vim-scripts
+d-i pkgsel/include string openssh-server sudo ifenslave iptables apt-transport-https bzip2 ca-certificates colordiff cpufrequtils curl debian-archive-keyring exuberant-ctags git haveged host less locales lsb-release lshw net-tools nvme-cli ntp parted rsync telnet traceroute vim vim-scripts
 d-i pkgsel/upgrade select full-upgrade
 popularity-contest popularity-contest/participate boolean false
 d-i grub-installer/only_debian boolean true