Имеется VPS (на базе KVM) у немецкого хостера Contabo. Пытаюсь там поднять OpenVPN, чтобы можно было ходить в интернет из всяких "стрёмных" мест.
Само openvpn-соединение происходит нормально. Пинги по vpn-адресам (10.8.0.0) ходят туда-сюда, так же клиент может пинговать внешний IP сервера. Но вот пинговать любой IP из интернета (8.8.8.8) клиент не может (сервер, разумеется сам может).
Трейс с клиента довольно ожидаем:
C:\Windows\System32>tracert ya.ru
Трассировка маршрута к ya.ru [213.180.193.3]
с максимальным числом прыжков 30:
1 44 ms 44 ms 44 ms 10.8.0.1
2 * * * Превышен интервал ожидания для запроса.
3 * * * Превышен интервал ожидания для запроса.
Пробовал всякие разные комбинации команд iptables из мануалов с просторов интернета, но результат одинаковый - интернета на клиенте нет.
Конфиги.
server:
port 1194
proto udp
dev tap
ca /etc/openvpn/keys/ca.crt
cert /etc/openvpn/keys/server.crt
key /etc/openvpn/keys/server.key
dh /etc/openvpn/keys/dh1024.pem
server 10.8.0.0 255.255.255.0
client-config-dir ccd
ifconfig-pool-persist ipp.txt
cipher BF-CBC
keepalive 10 120
comp-lzo
max-clients 10
user nobody
group nogroup
persist-key
persist-tun
status openvpn-status.log
log /var/log/openvpn.log
verb 3
mute 20
push "redirect-gateway def1"
push "dhcp-option DNS 8.8.8.8"
push "route-gateway 10.8.0.1"
push "route-method exe"
push "route-delay 2"
route 192.168.1.0 255.255.255.0
push "route 10.8.0.0 255.255.255.0"
+ccd:
iroute 192.168.1.0 255.255.255.0
client:
client
dev tap
proto udp
remote server_ip 1194
resolv-retry infinite
ca "c:/PROGRAM files/openvpn/ca.crt"
cert "c:/PROGRAM files/openvpn/client.crt"
key "c:/PROGRAM files/openvpn/client.key"
cipher BF-CBC
remote-cert-tls server
comp-lzo
persist-key
persist-tun
status openvpn-status.log
log "c:/PROGRAM files/openvpn/openvpn.log"
verb 3
mute 20
nobind
ip_forward:
/etc/openvpn/ccd# sysctl net.ipv4.ip_forward
net.ipv4.ip_forward = 1
iptables-save:
*nat
:PREROUTING ACCEPT [222:12657]
:INPUT ACCEPT [220:12460]
:OUTPUT ACCEPT [72:4320]
:POSTROUTING ACCEPT [72:4320]
:NAT_POSTROUTING_CHAIN - [0:0]
:NAT_PREROUTING_CHAIN - [0:0]
:POST_NAT_POSTROUTING_CHAIN - [0:0]
:POST_NAT_PREROUTING_CHAIN - [0:0]
-A PREROUTING -j NAT_PREROUTING_CHAIN
-A PREROUTING -j POST_NAT_PREROUTING_CHAIN
-A POSTROUTING -j NAT_POSTROUTING_CHAIN
-A POSTROUTING -j POST_NAT_POSTROUTING_CHAIN
-A POSTROUTING -s 10.8.0.0/24 -j SNAT --to-source SERVER_IP
COMMIT
...
:fail2ban-ssh - [0:0]
-A INPUT -p tcp -m multiport --dports 22 -j fail2ban-ssh
-A INPUT -j BASE_INPUT_CHAIN
-A INPUT -j INPUT_CHAIN
-A INPUT -j HOST_BLOCK_SRC
-A INPUT -j SPOOF_CHK
-A INPUT -i eth0 -j VALID_CHK
-A INPUT -i eth0 ! -p icmp -m state --state NEW -j EXT_INPUT_CHAIN
-A INPUT -i eth0 -p icmp -m state --state NEW -m limit --limit 60/sec --limit-burst 100 -j EXT_INPUT_CHAIN
-A INPUT -i eth0 -p icmp -m state --state NEW -j EXT_ICMP_FLOOD_CHAIN
-A INPUT -i eth0:0 -j VALID_CHK
-A INPUT -i eth0:0 ! -p icmp -m state --state NEW -j EXT_INPUT_CHAIN
-A INPUT -i eth0:0 -p icmp -m state --state NEW -m limit --limit 60/sec --limit-burst 100 -j EXT_INPUT_CHAIN
-A INPUT -i eth0:0 -p icmp -m state --state NEW -j EXT_ICMP_FLOOD_CHAIN
-A INPUT -i tun0 -j VALID_CHK
-A INPUT -i tun0 ! -p icmp -m state --state NEW -j EXT_INPUT_CHAIN
-A INPUT -i tun0 -p icmp -m state --state NEW -m limit --limit 60/sec --limit-burst 100 -j EXT_INPUT_CHAIN
-A INPUT -i tun0 -p icmp -m state --state NEW -j EXT_ICMP_FLOOD_CHAIN
-A INPUT -i tap0 -j VALID_CHK
-A INPUT -i tap0 ! -p icmp -m state --state NEW -j EXT_INPUT_CHAIN
-A INPUT -i tap0 -p icmp -m state --state NEW -m limit --limit 60/sec --limit-burst 100 -j EXT_INPUT_CHAIN
-A INPUT -i tap0 -p icmp -m state --state NEW -j EXT_ICMP_FLOOD_CHAIN
-A INPUT -j POST_INPUT_CHAIN
-A INPUT -m limit --limit 1/sec -j LOG --log-prefix "AIF:Dropped INPUT packet: " --log-level 6
-A INPUT -j DROP
-A FORWARD -j BASE_FORWARD_CHAIN
-A FORWARD -o eth0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -o eth0:0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -o tun0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -o tap0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A FORWARD -j FORWARD_CHAIN
-A FORWARD -j HOST_BLOCK_SRC
-A FORWARD -j HOST_BLOCK_DST
-A FORWARD -i eth0 -j EXT_FORWARD_IN_CHAIN
-A FORWARD -o eth0 -j EXT_FORWARD_OUT_CHAIN
-A FORWARD -i eth0:0 -j EXT_FORWARD_IN_CHAIN
-A FORWARD -o eth0:0 -j EXT_FORWARD_OUT_CHAIN
-A FORWARD -i tun0 -j EXT_FORWARD_IN_CHAIN
-A FORWARD -o tun0 -j EXT_FORWARD_OUT_CHAIN
-A FORWARD -i tap0 -j EXT_FORWARD_IN_CHAIN
-A FORWARD -o tap0 -j EXT_FORWARD_OUT_CHAIN
-A FORWARD -j SPOOF_CHK
-A FORWARD -j POST_FORWARD_CHAIN
-A FORWARD -m limit --limit 1/min --limit-burst 3 -j LOG --log-prefix "AIF:Dropped FORWARD packet: " --log-level 6
-A FORWARD -j DROP
-A OUTPUT -j BASE_OUTPUT_CHAIN
-A OUTPUT -o eth0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A OUTPUT -o eth0:0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A OUTPUT -o tun0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A OUTPUT -o tap0 -p tcp -m tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
-A OUTPUT -j OUTPUT_CHAIN
-A OUTPUT -j HOST_BLOCK_DST
-A OUTPUT -f -m limit --limit 3/min -j LOG --log-prefix "AIF:Fragment packet: " --log-level 6
-A OUTPUT -f -j DROP
-A OUTPUT -o eth0 -j EXT_OUTPUT_CHAIN
-A OUTPUT -o eth0:0 -j EXT_OUTPUT_CHAIN
-A OUTPUT -o tun0 -j EXT_OUTPUT_CHAIN
-A OUTPUT -o tap0 -j EXT_OUTPUT_CHAIN
-A OUTPUT -j POST_OUTPUT_CHAIN
-A OUTPUT -j ACCEPT
-A BASE_FORWARD_CHAIN -m state --state ESTABLISHED -j ACCEPT
-A BASE_FORWARD_CHAIN -p tcp -m state --state RELATED -m tcp --dport 1024:65535 -j ACCEPT
-A BASE_FORWARD_CHAIN -p udp -m state --state RELATED -m udp --dport 1024:65535 -j ACCEPT
-A BASE_FORWARD_CHAIN -p icmp -m state --state RELATED -j ACCEPT
-A BASE_FORWARD_CHAIN -i lo -j ACCEPT
-A BASE_INPUT_CHAIN -m state --state ESTABLISHED -j ACCEPT
-A BASE_INPUT_CHAIN -p tcp -m state --state RELATED -m tcp --dport 1024:65535 -j ACCEPT
-A BASE_INPUT_CHAIN -p udp -m state --state RELATED -m udp --dport 1024:65535 -j ACCEPT
-A BASE_INPUT_CHAIN -p icmp -m state --state RELATED -j ACCEPT
-A BASE_INPUT_CHAIN -i lo -j ACCEPT
-A BASE_OUTPUT_CHAIN -m state --state ESTABLISHED -j ACCEPT
-A BASE_OUTPUT_CHAIN -o lo -j ACCEPT
-A EXT_BROADCAST_CHAIN -p tcp -m tcp --dport 0:1023 -m limit --limit 6/min --limit-burst 2 -j LOG --log-prefix "AIF:PRIV TCP broadcast: " --log-level 6
-A EXT_BROADCAST_CHAIN -p udp -m udp --dport 0:1023 -m limit --limit 6/min --limit-burst 2 -j LOG --log-prefix "AIF:PRIV UDP broadcast: " --log-level 6
-A EXT_BROADCAST_CHAIN -p tcp -m tcp --dport 1024:65535 -m limit --limit 6/min --limit-burst 2 -j LOG --log-prefix "AIF:UNPRIV TCP broadcast: " --log-level 6
-A EXT_BROADCAST_CHAIN -p udp -m udp --dport 1024 -m limit --limit 6/min --limit-burst 2 -j LOG --log-prefix "AIF:UNPRIV UDP broadcast: " --log-level 6
-A EXT_BROADCAST_CHAIN -j DROP
-A EXT_FORWARD_IN_CHAIN -j VALID_CHK
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 3 -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP-unreachable flood: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 3 -j POST_INPUT_DROP_CHAIN
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 11 -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP-time-exceeded fld: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 11 -j POST_INPUT_DROP_CHAIN
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 12 -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP-param-problem fld: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 12 -j POST_INPUT_DROP_CHAIN
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 8 -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP-request(ping) fld: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 8 -j POST_INPUT_DROP_CHAIN
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 0 -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP-reply(pong) flood: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 0 -j POST_INPUT_DROP_CHAIN
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 4 -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP-source-quench fld: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m icmp --icmp-type 4 -j POST_INPUT_DROP_CHAIN
-A EXT_ICMP_FLOOD_CHAIN -p icmp -m limit --limit 12/hour --limit-burst 1 -j LOG --log-prefix "AIF:ICMP(other) flood: " --log-level 6
-A EXT_ICMP_FLOOD_CHAIN -p icmp -j POST_INPUT_DROP_CHAIN
-A EXT_INPUT_CHAIN -p tcp -m tcp --dport 0 -m limit --limit 6/hour --limit-burst 1 -j LOG --log-prefix "AIF:Port 0 OS fingerprint: " --log-level 6
-A EXT_INPUT_CHAIN -p udp -m udp --dport 0 -m limit --limit 6/hour --limit-burst 1 -j LOG --log-prefix "AIF:Port 0 OS fingerprint: " --log-level 6
-A EXT_INPUT_CHAIN -p tcp -m tcp --dport 0 -j POST_INPUT_DROP_CHAIN
-A EXT_INPUT_CHAIN -p udp -m udp --dport 0 -j POST_INPUT_DROP_CHAIN
-A EXT_INPUT_CHAIN -p tcp -m tcp --sport 0 -m limit --limit 6/hour -j LOG --log-prefix "AIF:TCP source port 0: " --log-level 6
-A EXT_INPUT_CHAIN -p udp -m udp --sport 0 -m limit --limit 6/hour -j LOG --log-prefix "AIF:UDP source port 0: " --log-level 6
...
Простой