tech:notes_openvpn
Ceci est une ancienne révision du document !
Table des matières
Notes OpenVPN
Voir aussi :
- Libreswan
- Macsec
Voir Fail over
Sécurité :
Autre :
IP fixes
OpenVPN + Fail2ban :
Conf
Sur le serveur
zcat /usr/share/doc/openvpn/examples/sample-config-files/server.conf.gz > /etc/openvpn/server.conf
Sur un client
cp /usr/share/doc/openvpn/examples/sample-config-files/client.conf /etc/openvpn/
- /etc/openvpn/server.conf
port 1194 ;proto tcp proto udp dev tun ca ca.crt cert server.crt key server.key dh dh1024.pem tls-auth ta.key 0 # Zero sur le serveur server 10.8.0.0 255.255.255.0 user nobody group nogroup # Pour que les clients puisse communiquer entre eux client-to-client ;ifconfig-pool-persist ipp.txt ifconfig-pool-persist ipp.txt 0 # Pour les certificat révoqués crl-verify crl.pem # Interface admin 'telnet localhost 5001' management localhost 5001 # Pour supervision (Munin) status /var/log/openvpn.status status-version 1
Le fichier ta.key devra être présent sur le serveur ainsi que sur l'ensemble des clients
openvpn --genkey --secret /etc/openvpn/ta.key chmod 600 /etc/openvpn/ta.key
- /etc/openvpn/client.conf
dev tun remote vpn.acme.fr 1194 resolv-retry infinite nobind persist-key persist-tun comp-lzo # Serveur proxy ;http-proxy 1.1.1.1 8080 ;proto tcp proto udp ca ca.crt cert client.crt key client.key tls-auth ta.key 1 remote-cert-tls server user nobody group nogroup ;log /var/log/openvpn.log ;verb 3
ifconfig-pool-persist ipp.txt 0 permet de mettre des IP fixes aux clients, le fichier ipp.txt est en lecture seul pour OpenVPN, il faudra le mettre à jour à la main.
Pb / Bug ⇒ il arrive qu'il y ai un décalage de 2 numéro IP (ex 10.8.0.4 dans le fichier, 10.8.0.6 pour de vrai)
- ipp.txt
portable,10.8.0.4
Déposer le fichier crl.pem (crash si fichier vide)
Démarrer le VPN sur le client
Exemple
sudo openvpn --inactive 0 --config plop.ovpn
Si le serveur pousse des routes que nous ne souhaitons corriger
ip route del 0.0.0.0/1 via 10.81.234.1 ip route del 128.0.0.0/1 ip route add 10.0.0.0/8 via 10.81.234.1
Supervision avec Munin
Voir
- /etc/munin/plugin-conf.d/munin-node
[openvpn] user root env.statusfile /var/log/openvpn-status.log
- /etc/openvpn/server.conf
status /var/log/openvpn.status status-version 1
Note OpenVPN to LAN gateway
https://community.openvpn.net/openvpn/wiki/RoutedLans http://blog.remibergsma.com/2013/01/13/howto-connect-to-hosts-on-a-remote-network-using-openvpn-and-some-routing/ http://15minutesoffame.be/nico/blog2/?article16/creer-un-serveur-openvpn
http://askubuntu.com/questions/462533/route-all-traffic-through-openvpn http://denisrosenkranz.com/tuto-pleins-de-trucs-pour-openvpn/
http://serverfault.com/questions/648118/openvpn-not-default-gateway-for-all-traffic/648689
VPN
- ccd/jibe
ifconfig-push 10.9.0.12 10.9.0.13 push "route 10.8.0.0 255.255.0.0"
iptables -t nat -A POSTROUTING -s 10.9.0.0/24 -o eth0 -j MASQUERADE echo 1 > /proc/sys/net/ipv4/ip_forward
Sortir tout le trafique via le VPN
Sur le serveur
- /etc/openvpn/server.conf
push "redirect-gateway"
OpenVPN sur TCP443
https://doc.pfsense.org/index.php/Sharing_a_Port_with_OpenVPN_and_a_Web_Server
port-share x.x.x.x 443
Exemple de conf
- login.conf
username password
- plop.ovpn
client dev tun3 proto tcp remote 176.126.237.217 80 remote euro217.vpnbook.com 80 resolv-retry infinite nobind persist-key persist-tun #auth-user-pass auth-user-pass login.conf comp-lzo verb 3 cipher AES-128-CBC fast-io pull route-delay 2 redirect-gateway # auth SHA1 ;http-proxy-retry ;http-proxy [proxy server] [proxy port] <ca> -----BEGIN CERTIFICATE----- MIIDyzCCAzSgAwIBAgIJAKRtpjsIvek1MA0GCSqGSIb3DQEBBQUAMIGgMQswCQYD VQQGEwJDSDEPMA0GA1UECBMGWnVyaWNoMQ8wDQYDVQQHEwZadXJpY2gxFDASBgNV BAoTC3ZwbmJvb2suY29tMQswCQYDVQQLEwJJVDEUMBIGA1UEAxMLdnBuYm9vay5j b20xFDASBgNVBCkTC3ZwbmJvb2suY29tMSAwHgYJKoZIhvcNAQkBFhFhZG1pbkB2 cG5ib29rLmNvbTAeFw0xMzA0MjQwNDA3NDhaFw0yMzA0MjIwNDA3NDhaMIGgMQsw CQYDVQQGEwJDSDEPMA0GA1UECBMGWnVyaWNoMQ8wDQYDVQQHEwZadXJpY2gxFDAS BgNVBAoTC3ZwbmJvb2suY29tMQswCQYDVQQLEwJJVDEUMBIGA1UEAxMLdnBuYm9v ay5jb20xFDASBgNVBCkTC3ZwbmJvb2suY29tMSAwHgYJKoZIhvcNAQkBFhFhZG1p bkB2cG5ib29rLmNvbTCBnzANBgkqhkiG9w0BAQEFAAOBjQAwgYkCgYEAyNwZEYs6 WN+j1zXYLEwiQMShc1mHmY9f9cx18hF/rENG+TBgaS5RVx9zU+7a9X1P3r2OyLXi WzqvEMmZIEhij8MtCxbZGEEUHktkbZqLAryIo8ubUigqke25+QyVLDIBuqIXjpw3 hJQMXIgMic1u7TGsvgEUahU/5qbLIGPNDlUCAwEAAaOCAQkwggEFMB0GA1UdDgQW BBRZ4KGhnll1W+K/KJVFl/C2+KM+JjCB1QYDVR0jBIHNMIHKgBRZ4KGhnll1W+K/ KJVFl/C2+KM+JqGBpqSBozCBoDELMAkGA1UEBhMCQ0gxDzANBgNVBAgTBlp1cmlj aDEPMA0GA1UEBxMGWnVyaWNoMRQwEgYDVQQKEwt2cG5ib29rLmNvbTELMAkGA1UE CxMCSVQxFDASBgNVBAMTC3ZwbmJvb2suY29tMRQwEgYDVQQpEwt2cG5ib29rLmNv bTEgMB4GCSqGSIb3DQEJARYRYWRtaW5AdnBuYm9vay5jb22CCQCkbaY7CL3pNTAM BgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBBQUAA4GBAKaoCEWk2pitKjbhChjl1rLj 6FwAZ74bcX/YwXM4X4st6k2+Fgve3xzwUWTXinBIyz/WDapQmX8DHk1N3Y5FuRkv wOgathAN44PrxLAI8kkxkngxby1xrG7LtMmpATxY7fYLOQ9yHge7RRZKDieJcX3j +ogTneOl2w6P0xP6lyI6 -----END CERTIFICATE----- </ca> <cert> -----BEGIN CERTIFICATE----- MIID6DCCA1GgAwIBAgIBATANBgkqhkiG9w0BAQUFADCBoDELMAkGA1UEBhMCQ0gx DzANBgNVBAgTBlp1cmljaDEPMA0GA1UEBxMGWnVyaWNoMRQwEgYDVQQKEwt2cG5i b29rLmNvbTELMAkGA1UECxMCSVQxFDASBgNVBAMTC3ZwbmJvb2suY29tMRQwEgYD VQQpEwt2cG5ib29rLmNvbTEgMB4GCSqGSIb3DQEJARYRYWRtaW5AdnBuYm9vay5j b20wHhcNMTMwNTA2MDMyMTIxWhcNMjMwNTA0MDMyMTIxWjB4MQswCQYDVQQGEwJD SDEPMA0GA1UECBMGWnVyaWNoMQ8wDQYDVQQHEwZadXJpY2gxFDASBgNVBAoTC3Zw bmJvb2suY29tMQ8wDQYDVQQDEwZjbGllbnQxIDAeBgkqhkiG9w0BCQEWEWFkbWlu QHZwbmJvb2suY29tMIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCkTM/8E+JH CjskqMIwgYDrNCBTWZLa+qKkJjZ/rliJomTfVYwKwv1AHYYU6RHpCxS1qFp3BEKL vQlASuzycSv1FGnNiLmg94fqzzWdmjs1XWosnLqbOwxx2Ye/1WoakSHia0pItoZk xK7/fllm42+Qujri/ERGga5Cb/TfiP6pUQIDAQABo4IBVzCCAVMwCQYDVR0TBAIw ADAtBglghkgBhvhCAQ0EIBYeRWFzeS1SU0EgR2VuZXJhdGVkIENlcnRpZmljYXRl MB0GA1UdDgQWBBTDr4BCNSdOEh+Lx6+4RRK11x8XcDCB1QYDVR0jBIHNMIHKgBRZ 4KGhnll1W+K/KJVFl/C2+KM+JqGBpqSBozCBoDELMAkGA1UEBhMCQ0gxDzANBgNV BAgTBlp1cmljaDEPMA0GA1UEBxMGWnVyaWNoMRQwEgYDVQQKEwt2cG5ib29rLmNv bTELMAkGA1UECxMCSVQxFDASBgNVBAMTC3ZwbmJvb2suY29tMRQwEgYDVQQpEwt2 cG5ib29rLmNvbTEgMB4GCSqGSIb3DQEJARYRYWRtaW5AdnBuYm9vay5jb22CCQCk baY7CL3pNTATBgNVHSUEDDAKBggrBgEFBQcDAjALBgNVHQ8EBAMCB4AwDQYJKoZI hvcNAQEFBQADgYEAoDgD8mpVPnHUh7RhQziwhp8APC8K3jToZ0Dv4MYXQnzyXziH QbewJZABCcOKYS0VRB/6zYX/9dIBogA/ieLgLrXESIeOp1SfP3xt+gGXSiJaohyA /NLsTi/Am8OP211IFLyDLvPqZuqlh/+/GOLcMCeCrMj4RYxWstNxtguGQFc= -----END CERTIFICATE----- </cert> <key> -----BEGIN RSA PRIVATE KEY----- MIICXAIBAAKBgQCkTM/8E+JHCjskqMIwgYDrNCBTWZLa+qKkJjZ/rliJomTfVYwK wv1AHYYU6RHpCxS1qFp3BEKLvQlASuzycSv1FGnNiLmg94fqzzWdmjs1XWosnLqb Owxx2Ye/1WoakSHia0pItoZkxK7/fllm42+Qujri/ERGga5Cb/TfiP6pUQIDAQAB AoGANX508WQf9nVUUFlJ8LUZnnr4U2sEr5uPPNbcQ7ImTZm8MiMOV6qo/ikesMw5 8qCS+5p26e1PJWRFENPUVhOW9c07z+nRMyHBQzFnNAFD7TiayjNk1gz1oIXarceR edNGFDdWCwXh+nJJ6whbQn9ioyTg9aqScrcATmHQxTit0GECQQDR5FmwC7g0eGwZ VHgSc/bZzo0q3VjNGakrA2zSXWUWrE0ybBm2wJNBYKAeskzWxoc6/gJa8mKEU+Vv ugGb+J/tAkEAyGSEmWROUf4WX5DLl6nkjShdyv4LAQpByhiwLjmiZL7F4/irY4fo ct2Ii5uMzwERRvHjJ7yzJJic8gkEca2adQJABxjZj4JV8DBCN3kLtlQFfMfnLhPd 9NFxTusGuvY9fM7GrXXKSMuqLwO9ZkxRHNIJsIz2N20Kt76+e1CmzUdS4QJAVvbQ WKUgHBMRcI2s3PecuOmQspxG+D+UR3kpVBYs9F2aEZIEBuCfLuIW9Mcfd2I2NjyY 4NDSSYp1adAh/pdhVQJBANDrlnodYDu6A+a4YO9otjd+296/T8JpePI/KNxk7N0A gm7SAhk379I6hr5NXdBbvTedlb1ULrhWV8lpwZ9HW2k= -----END RSA PRIVATE KEY----- </key>
- id.conf
username password
Conf PIA Private Internet Access
- new_zealand.ovpn
client dev tun proto udp remote nz.privacy.network 1198 resolv-retry infinite nobind persist-key persist-tun cipher aes-128-cbc auth sha1 tls-client remote-cert-tls server auth-user-pass compress verb 1 reneg-sec 0 <crl-verify> -----BEGIN X509 CRL----- MIICWDCCAUAwDQYJKoZIhvcNAQENBQAwgegxCzAJBgNVBAYTAlVTMQswCQYDVQQI EwJDQTETMBEGA1UEBxMKTG9zQW5nZWxlczEgMB4GA1UEChMXUHJpdmF0ZSBJbnRl cm5ldCBBY2Nlc3MxIDAeBgNVBAsTF1ByaXZhdGUgSW50ZXJuZXQgQWNjZXNzMSAw HgYDVQQDExdQcml2YXRlIEludGVybmV0IEFjY2VzczEgMB4GA1UEKRMXUHJpdmF0 ZSBJbnRlcm5ldCBBY2Nlc3MxLzAtBgkqhkiG9w0BCQEWIHNlY3VyZUBwcml2YXRl aW50ZXJuZXRhY2Nlc3MuY29tFw0xNjA3MDgxOTAwNDZaFw0zNjA3MDMxOTAwNDZa MCYwEQIBARcMMTYwNzA4MTkwMDQ2MBECAQYXDDE2MDcwODE5MDA0NjANBgkqhkiG 9w0BAQ0FAAOCAQEAQZo9X97ci8EcPYu/uK2HB152OZbeZCINmYyluLDOdcSvg6B5 jI+ffKN3laDvczsG6CxmY3jNyc79XVpEYUnq4rT3FfveW1+Ralf+Vf38HdpwB8EW B4hZlQ205+21CALLvZvR8HcPxC9KEnev1mU46wkTiov0EKc+EdRxkj5yMgv0V2Re ze7AP+NQ9ykvDScH4eYCsmufNpIjBLhpLE2cuZZXBLcPhuRzVoU3l7A9lvzG9mjA 5YijHJGHNjlWFqyrn1CfYS6koa4TGEPngBoAziWRbDGdhEgJABHrpoaFYaL61zqy MR6jC0K2ps9qyZAN74LEBedEfK7tBOzWMwr58A== -----END X509 CRL----- </crl-verify> <ca> -----BEGIN CERTIFICATE----- MIIFqzCCBJOgAwIBAgIJAKZ7D5Yv87qDMA0GCSqGSIb3DQEBDQUAMIHoMQswCQYD VQQGEwJVUzELMAkGA1UECBMCQ0ExEzARBgNVBAcTCkxvc0FuZ2VsZXMxIDAeBgNV BAoTF1ByaXZhdGUgSW50ZXJuZXQgQWNjZXNzMSAwHgYDVQQLExdQcml2YXRlIElu dGVybmV0IEFjY2VzczEgMB4GA1UEAxMXUHJpdmF0ZSBJbnRlcm5ldCBBY2Nlc3Mx IDAeBgNVBCkTF1ByaXZhdGUgSW50ZXJuZXQgQWNjZXNzMS8wLQYJKoZIhvcNAQkB FiBzZWN1cmVAcHJpdmF0ZWludGVybmV0YWNjZXNzLmNvbTAeFw0xNDA0MTcxNzM1 MThaFw0zNDA0MTIxNzM1MThaMIHoMQswCQYDVQQGEwJVUzELMAkGA1UECBMCQ0Ex EzARBgNVBAcTCkxvc0FuZ2VsZXMxIDAeBgNVBAoTF1ByaXZhdGUgSW50ZXJuZXQg QWNjZXNzMSAwHgYDVQQLExdQcml2YXRlIEludGVybmV0IEFjY2VzczEgMB4GA1UE AxMXUHJpdmF0ZSBJbnRlcm5ldCBBY2Nlc3MxIDAeBgNVBCkTF1ByaXZhdGUgSW50 ZXJuZXQgQWNjZXNzMS8wLQYJKoZIhvcNAQkBFiBzZWN1cmVAcHJpdmF0ZWludGVy bmV0YWNjZXNzLmNvbTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAPXD L1L9tX6DGf36liA7UBTy5I869z0UVo3lImfOs/GSiFKPtInlesP65577nd7UNzzX lH/P/CnFPdBWlLp5ze3HRBCc/Avgr5CdMRkEsySL5GHBZsx6w2cayQ2EcRhVTwWp cdldeNO+pPr9rIgPrtXqT4SWViTQRBeGM8CDxAyTopTsobjSiYZCF9Ta1gunl0G/ 8Vfp+SXfYCC+ZzWvP+L1pFhPRqzQQ8k+wMZIovObK1s+nlwPaLyayzw9a8sUnvWB /5rGPdIYnQWPgoNlLN9HpSmsAcw2z8DXI9pIxbr74cb3/HSfuYGOLkRqrOk6h4RC OfuWoTrZup1uEOn+fw8CAwEAAaOCAVQwggFQMB0GA1UdDgQWBBQv63nQ/pJAt5tL y8VJcbHe22ZOsjCCAR8GA1UdIwSCARYwggESgBQv63nQ/pJAt5tLy8VJcbHe22ZO sqGB7qSB6zCB6DELMAkGA1UEBhMCVVMxCzAJBgNVBAgTAkNBMRMwEQYDVQQHEwpM b3NBbmdlbGVzMSAwHgYDVQQKExdQcml2YXRlIEludGVybmV0IEFjY2VzczEgMB4G A1UECxMXUHJpdmF0ZSBJbnRlcm5ldCBBY2Nlc3MxIDAeBgNVBAMTF1ByaXZhdGUg SW50ZXJuZXQgQWNjZXNzMSAwHgYDVQQpExdQcml2YXRlIEludGVybmV0IEFjY2Vz czEvMC0GCSqGSIb3DQEJARYgc2VjdXJlQHByaXZhdGVpbnRlcm5ldGFjY2Vzcy5j b22CCQCmew+WL/O6gzAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBDQUAA4IBAQAn a5PgrtxfwTumD4+3/SYvwoD66cB8IcK//h1mCzAduU8KgUXocLx7QgJWo9lnZ8xU ryXvWab2usg4fqk7FPi00bED4f4qVQFVfGfPZIH9QQ7/48bPM9RyfzImZWUCenK3 7pdw4Bvgoys2rHLHbGen7f28knT2j/cbMxd78tQc20TIObGjo8+ISTRclSTRBtyC GohseKYpTS9himFERpUgNtefvYHbn70mIOzfOJFTVqfrptf9jXa9N8Mpy3ayfodz 1wiqdteqFXkTYoSDctgKMiZ6GdocK9nMroQipIQtpnwd4yBDWIyC6Bvlkrq5TQUt YDQ8z9v+DMO6iwyIDRiU -----END CERTIFICATE----- </ca> disable-occ
tech/notes_openvpn.1742825205.txt.gz · Dernière modification : de 127.0.0.1