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HAproxy Transparent Proxy doesn't work


HAProxy cannot bind socket for proxy on a remote machineHost doesn't send ACK-SYN packets for transparent proxyTomcat 6 session replication does not work with HAProxyUsing 2 Transparent HAProxy for load balancingHAproxy for load balancing vsFTPd serversTransparent Proxy Issues w/ HAProxy Centos 7HAProxy TCP Transparent Mode Remote Servershaproxy ACL - how to route traffic based on destination port or addressTransparent HAProxy, clients cannot connectTransparent HAproxy on ubuntu (amazon EC2)






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0















I have had configured transparent proxy mode in HAproxy with my configure shown below:



global
maxconn 5000
stats socket /var/run/haproxy.stat mode 600 level admin
log 127.0.0.1 local2
tune.ssl.default-dh-param 2048
nogetaddrinfo
stats bind-process 1
nbproc 1
user root
group root

defaults
mode tcp
#option forwardfor
#option http-server-close
timeout http-request 30s
timeout connect 30s
timeout server 60s
timeout client 60s

listen stats
mode http
bind-process 1
bind 192.168.56.103:81
stats enable
stats uri /
stats realm HAProxy Statistics
stats auth admin:admin


frontend port80
bind-process 1
#bind *:80 transparent
bind 192.168.56.103:80 transparent
maxconn 5000
mode tcp
#option http-server-close
#option forwardfor except 127.0.0.1
default_backend backend_port80


backend backend_port80
mode tcp
#bind-process all
log global
balance roundrobin
#option forwardfor
source 0.0.0.0 usesrc clientip
server test1 192.168.56.105:80 check
server test2 192.168.56.110:80 check


And here is my kernel config by sysctl -p



net.ipv4.ip_forward = 1
net.ipv4.conf.all.forwarding = 1
net.ipv4.conf.all.accept_redirects = 1
net.ipv4.conf.all.send_redirects = 1
net.ipv4.ip_nonlocal_bind = 1


And here is iptables and routing



 iptables -A POSTROUTING -t nat -j MASQUERADE
iptables -t mangle -N DIVERT
iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT
iptables -t mangle -A DIVERT -j MARK --set-mark 1
iptables -t mangle -A DIVERT -j ACCEPT
ip rule add fwmark 1 lookup 100
ip route add local 0.0.0.0/0 dev lo table 100


I also enabled xt_TPROXY in Centos 7.



xt_TPROXY 17327 0
nf_defrag_ipv6 35104 1 xt_TPROXY
nf_defrag_ipv4 12729 1 xt_TPROXY


My backend server is webserver by apache2.4, I couldn't see IP client in the log. I did't know why transparent proxy didn't work. I also set up my HAproxy be to backend's default-gateway but still doesn't work










share|improve this question
























  • Without knowing what "didn't work" means, we can't know either.

    – womble
    Jun 4 at 3:53











  • What do u mean? I cant see IP client, i only see IP of HAproxy server. although I enabled transparent ip client mode.

    – Giang Lâm Hữu Phước
    Jun 4 at 4:08

















0















I have had configured transparent proxy mode in HAproxy with my configure shown below:



global
maxconn 5000
stats socket /var/run/haproxy.stat mode 600 level admin
log 127.0.0.1 local2
tune.ssl.default-dh-param 2048
nogetaddrinfo
stats bind-process 1
nbproc 1
user root
group root

defaults
mode tcp
#option forwardfor
#option http-server-close
timeout http-request 30s
timeout connect 30s
timeout server 60s
timeout client 60s

listen stats
mode http
bind-process 1
bind 192.168.56.103:81
stats enable
stats uri /
stats realm HAProxy Statistics
stats auth admin:admin


frontend port80
bind-process 1
#bind *:80 transparent
bind 192.168.56.103:80 transparent
maxconn 5000
mode tcp
#option http-server-close
#option forwardfor except 127.0.0.1
default_backend backend_port80


backend backend_port80
mode tcp
#bind-process all
log global
balance roundrobin
#option forwardfor
source 0.0.0.0 usesrc clientip
server test1 192.168.56.105:80 check
server test2 192.168.56.110:80 check


And here is my kernel config by sysctl -p



net.ipv4.ip_forward = 1
net.ipv4.conf.all.forwarding = 1
net.ipv4.conf.all.accept_redirects = 1
net.ipv4.conf.all.send_redirects = 1
net.ipv4.ip_nonlocal_bind = 1


And here is iptables and routing



 iptables -A POSTROUTING -t nat -j MASQUERADE
iptables -t mangle -N DIVERT
iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT
iptables -t mangle -A DIVERT -j MARK --set-mark 1
iptables -t mangle -A DIVERT -j ACCEPT
ip rule add fwmark 1 lookup 100
ip route add local 0.0.0.0/0 dev lo table 100


I also enabled xt_TPROXY in Centos 7.



xt_TPROXY 17327 0
nf_defrag_ipv6 35104 1 xt_TPROXY
nf_defrag_ipv4 12729 1 xt_TPROXY


My backend server is webserver by apache2.4, I couldn't see IP client in the log. I did't know why transparent proxy didn't work. I also set up my HAproxy be to backend's default-gateway but still doesn't work










share|improve this question
























  • Without knowing what "didn't work" means, we can't know either.

    – womble
    Jun 4 at 3:53











  • What do u mean? I cant see IP client, i only see IP of HAproxy server. although I enabled transparent ip client mode.

    – Giang Lâm Hữu Phước
    Jun 4 at 4:08













0












0








0








I have had configured transparent proxy mode in HAproxy with my configure shown below:



global
maxconn 5000
stats socket /var/run/haproxy.stat mode 600 level admin
log 127.0.0.1 local2
tune.ssl.default-dh-param 2048
nogetaddrinfo
stats bind-process 1
nbproc 1
user root
group root

defaults
mode tcp
#option forwardfor
#option http-server-close
timeout http-request 30s
timeout connect 30s
timeout server 60s
timeout client 60s

listen stats
mode http
bind-process 1
bind 192.168.56.103:81
stats enable
stats uri /
stats realm HAProxy Statistics
stats auth admin:admin


frontend port80
bind-process 1
#bind *:80 transparent
bind 192.168.56.103:80 transparent
maxconn 5000
mode tcp
#option http-server-close
#option forwardfor except 127.0.0.1
default_backend backend_port80


backend backend_port80
mode tcp
#bind-process all
log global
balance roundrobin
#option forwardfor
source 0.0.0.0 usesrc clientip
server test1 192.168.56.105:80 check
server test2 192.168.56.110:80 check


And here is my kernel config by sysctl -p



net.ipv4.ip_forward = 1
net.ipv4.conf.all.forwarding = 1
net.ipv4.conf.all.accept_redirects = 1
net.ipv4.conf.all.send_redirects = 1
net.ipv4.ip_nonlocal_bind = 1


And here is iptables and routing



 iptables -A POSTROUTING -t nat -j MASQUERADE
iptables -t mangle -N DIVERT
iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT
iptables -t mangle -A DIVERT -j MARK --set-mark 1
iptables -t mangle -A DIVERT -j ACCEPT
ip rule add fwmark 1 lookup 100
ip route add local 0.0.0.0/0 dev lo table 100


I also enabled xt_TPROXY in Centos 7.



xt_TPROXY 17327 0
nf_defrag_ipv6 35104 1 xt_TPROXY
nf_defrag_ipv4 12729 1 xt_TPROXY


My backend server is webserver by apache2.4, I couldn't see IP client in the log. I did't know why transparent proxy didn't work. I also set up my HAproxy be to backend's default-gateway but still doesn't work










share|improve this question
















I have had configured transparent proxy mode in HAproxy with my configure shown below:



global
maxconn 5000
stats socket /var/run/haproxy.stat mode 600 level admin
log 127.0.0.1 local2
tune.ssl.default-dh-param 2048
nogetaddrinfo
stats bind-process 1
nbproc 1
user root
group root

defaults
mode tcp
#option forwardfor
#option http-server-close
timeout http-request 30s
timeout connect 30s
timeout server 60s
timeout client 60s

listen stats
mode http
bind-process 1
bind 192.168.56.103:81
stats enable
stats uri /
stats realm HAProxy Statistics
stats auth admin:admin


frontend port80
bind-process 1
#bind *:80 transparent
bind 192.168.56.103:80 transparent
maxconn 5000
mode tcp
#option http-server-close
#option forwardfor except 127.0.0.1
default_backend backend_port80


backend backend_port80
mode tcp
#bind-process all
log global
balance roundrobin
#option forwardfor
source 0.0.0.0 usesrc clientip
server test1 192.168.56.105:80 check
server test2 192.168.56.110:80 check


And here is my kernel config by sysctl -p



net.ipv4.ip_forward = 1
net.ipv4.conf.all.forwarding = 1
net.ipv4.conf.all.accept_redirects = 1
net.ipv4.conf.all.send_redirects = 1
net.ipv4.ip_nonlocal_bind = 1


And here is iptables and routing



 iptables -A POSTROUTING -t nat -j MASQUERADE
iptables -t mangle -N DIVERT
iptables -t mangle -A PREROUTING -p tcp -m socket -j DIVERT
iptables -t mangle -A DIVERT -j MARK --set-mark 1
iptables -t mangle -A DIVERT -j ACCEPT
ip rule add fwmark 1 lookup 100
ip route add local 0.0.0.0/0 dev lo table 100


I also enabled xt_TPROXY in Centos 7.



xt_TPROXY 17327 0
nf_defrag_ipv6 35104 1 xt_TPROXY
nf_defrag_ipv4 12729 1 xt_TPROXY


My backend server is webserver by apache2.4, I couldn't see IP client in the log. I did't know why transparent proxy didn't work. I also set up my HAproxy be to backend's default-gateway but still doesn't work







haproxy






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Jun 4 at 7:32







Giang Lâm Hữu Phước

















asked Jun 3 at 15:06









Giang Lâm Hữu PhướcGiang Lâm Hữu Phước

11




11












  • Without knowing what "didn't work" means, we can't know either.

    – womble
    Jun 4 at 3:53











  • What do u mean? I cant see IP client, i only see IP of HAproxy server. although I enabled transparent ip client mode.

    – Giang Lâm Hữu Phước
    Jun 4 at 4:08

















  • Without knowing what "didn't work" means, we can't know either.

    – womble
    Jun 4 at 3:53











  • What do u mean? I cant see IP client, i only see IP of HAproxy server. although I enabled transparent ip client mode.

    – Giang Lâm Hữu Phước
    Jun 4 at 4:08
















Without knowing what "didn't work" means, we can't know either.

– womble
Jun 4 at 3:53





Without knowing what "didn't work" means, we can't know either.

– womble
Jun 4 at 3:53













What do u mean? I cant see IP client, i only see IP of HAproxy server. although I enabled transparent ip client mode.

– Giang Lâm Hữu Phước
Jun 4 at 4:08





What do u mean? I cant see IP client, i only see IP of HAproxy server. although I enabled transparent ip client mode.

– Giang Lâm Hữu Phước
Jun 4 at 4:08










1 Answer
1






active

oldest

votes


















0














I think you are missing the most important line:



source 0.0.0.0 usesrc clientip


i.e. tell HAProxy to replace the source IP.
As described here:
https://www.loadbalancer.org/blog/configure-haproxy-with-tproxy-kernel-for-full-transparent-proxy/






share|improve this answer























  • I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

    – Giang Lâm Hữu Phước
    Jun 4 at 7:12












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1 Answer
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1 Answer
1






active

oldest

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active

oldest

votes






active

oldest

votes









0














I think you are missing the most important line:



source 0.0.0.0 usesrc clientip


i.e. tell HAProxy to replace the source IP.
As described here:
https://www.loadbalancer.org/blog/configure-haproxy-with-tproxy-kernel-for-full-transparent-proxy/






share|improve this answer























  • I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

    – Giang Lâm Hữu Phước
    Jun 4 at 7:12
















0














I think you are missing the most important line:



source 0.0.0.0 usesrc clientip


i.e. tell HAProxy to replace the source IP.
As described here:
https://www.loadbalancer.org/blog/configure-haproxy-with-tproxy-kernel-for-full-transparent-proxy/






share|improve this answer























  • I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

    – Giang Lâm Hữu Phước
    Jun 4 at 7:12














0












0








0







I think you are missing the most important line:



source 0.0.0.0 usesrc clientip


i.e. tell HAProxy to replace the source IP.
As described here:
https://www.loadbalancer.org/blog/configure-haproxy-with-tproxy-kernel-for-full-transparent-proxy/






share|improve this answer













I think you are missing the most important line:



source 0.0.0.0 usesrc clientip


i.e. tell HAProxy to replace the source IP.
As described here:
https://www.loadbalancer.org/blog/configure-haproxy-with-tproxy-kernel-for-full-transparent-proxy/







share|improve this answer












share|improve this answer



share|improve this answer










answered Jun 4 at 6:48









Malcolm turnbullMalcolm turnbull

57626




57626












  • I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

    – Giang Lâm Hữu Phước
    Jun 4 at 7:12


















  • I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

    – Giang Lâm Hữu Phước
    Jun 4 at 7:12

















I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

– Giang Lâm Hữu Phước
Jun 4 at 7:12






I added source 0.0.0.0 usesrc clientip in backend backend_port80 in my haproxy.cnf

– Giang Lâm Hữu Phước
Jun 4 at 7:12


















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