How to reach the server by external ip when connected to it via VPN (pptpd, CentOS)?

Question

linux

Hello,
I have a VPS server running a web server with virtual hosts (name based).
On it, according to numerous tutorials, a pptpd server was raised. Everything works, but now it is not possible to reach the server at the external address either via ssh or in other ways, but if you can use the internal ip address for ssh, then this will not work for virtual hosts.
I would be grateful if you tell me where to look and what words to google?
At the request "unable to access server by external ip during vpn connection" I did not find any useful information for myself, but "pptp routes" is about something else.
[[email protected] ~]# ip r

192.168.1.10 dev ppp0  proto kernel  scope link  src 192.168.1.1 
109.120.100.0/24 dev venet0  proto kernel  scope link  src 109.120.100.27 
169.254.0.0/16 dev venet0  scope link  metric 1002 
default dev venet0  scope link

[[email protected] ~]# ip a

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
    link/void 
    inet 127.0.0.1/32 scope host venet0
    inet 109.120.100.27/24 brd 109.120.100.255 scope global venet0:0
31: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1496 qdisc pfifo_fast state UNKNOWN qlen 3
    link/ppp 
    inet 192.168.1.1 peer 192.168.1.10/32 scope global ppp0

[[email protected] ~]# iptables-save

# Generated by iptables-save v1.4.7 on Fri Aug  8 23:44:15 2014
*nat
:PREROUTING ACCEPT [6112:472404]
:POSTROUTING ACCEPT [11:672]
:OUTPUT ACCEPT [1126:81339]
-A POSTROUTING -o venet0 -j MASQUERADE 
COMMIT
# Completed on Fri Aug  8 23:44:15 2014
# Generated by iptables-save v1.4.7 on Fri Aug  8 23:44:15 2014
*mangle
:PREROUTING ACCEPT [213612:37124715]
:INPUT ACCEPT [146674:15347003]
:FORWARD ACCEPT [66820:21762079]
:OUTPUT ACCEPT [154566:54487863]
:POSTROUTING ACCEPT [221175:76217108]
COMMIT
# Completed on Fri Aug  8 23:44:15 2014
# Generated by iptables-save v1.4.7 on Fri Aug  8 23:44:15 2014
*filter
:INPUT ACCEPT [146674:15347003]
:FORWARD ACCEPT [66820:21762079]
:OUTPUT ACCEPT [36205:17494985]
:VZ_FORWARD - [0:0]
:VZ_INPUT - [0:0]
:VZ_OUTPUT - [0:0]
-A INPUT -j VZ_INPUT 
-A FORWARD -j VZ_FORWARD 
-A FORWARD -i ppp -o venet0:0 -j ACCEPT 
-A FORWARD -i venet0:0 -o ppp -j ACCEPT 
-A OUTPUT -j VZ_OUTPUT 
-A VZ_OUTPUT -p tcp -m tcp --sport 80 -j ACCEPT 
-A VZ_OUTPUT -p tcp -m tcp --sport 22 -j ACCEPT 
-A VZ_OUTPUT -p tcp -m tcp --sport 25 -j ACCEPT 
-A VZ_OUTPUT -p tcp -m tcp --sport 110 -j ACCEPT 
-A VZ_OUTPUT -p tcp -m tcp --sport 53 -j ACCEPT 
-A VZ_OUTPUT -p udp -m udp --sport 53 -j ACCEPT 
-A VZ_OUTPUT -p tcp -j ACCEPT 
-A VZ_OUTPUT -p udp -j ACCEPT 
-A VZ_OUTPUT -p tcp -m tcp --sport 8880 -j ACCEPT 
-A VZ_OUTPUT -p tcp -m tcp --sport 8443 -j ACCEPT 
-A VZ_OUTPUT -s 127.0.0.1/32 -d 127.0.0.1/32 -p tcp -j ACCEPT 
-A VZ_OUTPUT -s 127.0.0.1/32 -d 127.0.0.1/32 -p udp -j ACCEPT 
COMMIT
# Completed on Fri Aug  8 23:44:15 2014

Answer 1

Show the output of the commands:

ip r
ip a
iptables-save

Answer 2

I think here you need to look at the routes of your computer, not the server, your default starts to look in vpn when connected.

Answer 3

Output from the client to the studio
or
if the client is Linux.