Librehosting » Historique » Révision 11
Révision 10 (sacha, 01/08/2018 19:35) → Révision 11/44 (sacha, 01/08/2018 19:45)
# Configuration of a Libre Hosting aka IPSec between OPNSense and OpenBSD to anounce our ASN IP from an indifferent ISP place. ## Who we are Aquilenet is a non profit organisation since 2010 and a "do it yourself ISP", member of a Federation of similar ISP in France called [FFDN](https://www.ffdn.org). We are netneutrality builders, helping for more freedom and building networks using and participating Libre Software. We provide xDSL, VPN and we hope soon Fiber accesses, and a lot of services for our members (mail, nextcloud, hosting, VPS...) and for others [searx](https://searx.aquilenet.fr), [Etherpad](https://pad.aquilenet.fr), [Pastebin](https://pastebin.aquilenet.fr), [Peertube](https://tube.aquilenet.fr), ... ## The need: create a Libre format hosting in our cool local called "la mezzanine". To allow to our the members of our non-profit organisation to put the hawdware they want (like Nuc, Raspberry pi, tower, etc...) in our Libre hosting space called "la mezzanine" with a Public IPv4 and IPv6 from our [ASN](https://en.wikipedia.org/wiki/Autonomous_system_(Internet)), we need to announce our IPs from another place than our Datacenter. ## How we do We have to tunnel all the network from the Libre Hosting to Internet and vice versa. We have tried first with OpenVPN but the userland application use to much ressources for needed bandwidth (200Mbps). This IP range will be routed by IPSec to our ASN point of BGP anounce in our datacenter, then they will route them to the Libre Hosting. From our Libre Hosting we have a OPNSense Firewall and in our datacenter 2 clustered OpenBSD. A scheme to explain this:   ### OpenBSD configuration We configure the OpenBSD's IPSec configuration file for 2 Phase 2 tunnels one for IPv4 another on for IPv6 /etc/ipsec.conf ~~~ ike passive esp from any to $LIBRE_HOSTING_PUB_IP_V4/26 \ peer $OPSense_Public_IP\ main group modp2048\ psk "mysupersecurepass" flow esp from any to $LIBRE_HOSTING_PUB_IP_V4/26 peer $OPSense_Public_IP flow esp from any to $LIBRE_HOSTING_PUB_IP_V6/48 peer $OPSense_Public_IP ~~~ ~~~ chmod 500 /etc/ipsec.conf ~~~ Launch the tunnel: ~~~ isakmpd -K ipsecctl -f /etc/ipsec.conf ~~~ To make it permanent add this to /etc/rc.conf.local: ~~~ isakmpd_flags="-K" ipsec_rules=/etc/ipsec.conf ipsec=YES ~~~ check the configuration: ~~~ ipsecctl -sa ~~~ Enable some logs on Isakmpd: ~~~ sh -c "echo S \> /var/run/isakmpd.fifo" less /var/run/isakmpd.result ~~~ and: ~~~ isakmpd -d -DA=70 -K ~~~ Check IPSec Flows: ~~~ ipsecctl -F ~~~ ## OPNSense configuration   ### \\-\> Configuration1: Performances - AES\_CBC\_256/HMAC\_SHA2\_512\_256/MODP\_8192 - Cerbere11 last pid: 45038; load averages: 0.27, 0.34, 0.31 up 0+00:56:47 19:07:15 49 processes: 1 running, 48 sleeping CPU 0: 3.9% user, 0.0% nice, 0.8% system, 3.1% interrupt, 92.1% idle CPU 1: 1.2% user, 0.0% nice, 0.0% system, 6.3% interrupt, 92.5% idle CPU 2: 0.4% user, 0.0% nice, 0.0% system, 21.3% interrupt, 78.3% idle CPU 3: 5.9% user, 0.0% nice, 0.0% system, 2.4% interrupt, 91.7% idle Mem: 109M Active, 145M Inact, 387M Wired, 152M Buf, 7214M Free - Cerbere1 load averages: 1.18, 0.95, 0.74 cerbere1.aquilenet.fr 19:08:23 43 processes: 1 starting, 40 idle, 1 dead, 1 on processor up 3 days, 18:40 up 3 days, 19:21 CPU0 states: 0.2% user, 0.0% nice, 2.8% system, 7.4% interrupt, 89.6% idle CPU1 states: 0.0% user, 0.0% nice, 22.4% system, 0.0% interrupt, 77.6% idle CPU2 states: 0.0% user, 0.0% nice, 20.2% system, 0.0% interrupt, 79.8% idle CPU3 states: 0.0% user, 0.0% nice, 10.8% system, 0.0% interrupt, 89.2% idle Memory: Real: 584M/2111M act/tot Free: 5793M Cache: 754M Swap: 0K/8405M - bande passante  ### MTU Linux: ping -M do -s 1172 185.233.102.130 =\> OK Linux: iperf3 -c 185.233.102.130 -M 1160 =\> OK Linux: ping -M do -s 1173 185.233.102.130 =\> NOK Linux: iperf3 -c 185.233.102.130 -M 1161 =\> NOK - netcat qui fait un echo socat TCP4-LISTEN:4444,fork EXEC:cat