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I have to connect remotely from client on CentOS to VPN server, hosted on Windows.

What have been done:

  1. Installed packages yum install ppp pptp

  2. Contents of /etc/ppp/peers/harkiv_vpn

    # pty "pptp xxx.xxx.xxx.xxx --nolaunchpppd" # using IP address
pty "pptp vpn.campus.harkiv.ua --nolaunchpppd"
lock
noauth
nobsdcomp
nodeflate
nodefaultroute
usepeerdns
name user_name
remotename harkiv_vpn
ipparam harkiv_vpn
refuse-pap
refuse-eap
refuse-chap
refuse-mschap
require-mppe
nomppe-stateful

  3. Contents of /etc/ppp/chap-secrets

    # Secrets for authentication using CHAP
# client server secret IP addresses

user_name harkiv_vpn "user_password_in_dblquotes" *

  4. Created script start_vpn1.sh

    systemctl stop firewalld            # stop the firewall
pppd call harkiv_vpn                # start VPN connection
# pppd call megarvpn debug nodetach # for starting VPN manually

  5. Created script stop_vpn.sh

    pkill pptp                # stop VPN connection
systemctl start firewalld # start the firewall
systemctl restart network # restarting service recreates the file resolv.conf

After all that vpn connection starts, but I still can't access remote resources. What have I missed?

  • 1
    Warning: PPTP is obsolete and insecure. It does not provide privacy or confidentiality and should not be used if you need these. – Michael Hampton Oct 16 '18 at 19:41

1 Answers1

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After running script start_vpn1.sh, the VPN connection is started, but the gateway in it is taken from the current network connection, not from a remote VPN server. To correct this:

  1. Contents of /etc/resolv.conf

    # Generated by NetworkManager
search harkiv.local
nameserver zzz.zzz.zzz.zzz # Remote VPN server gateway <- add this line
nameserver xxx.xxx.xxx.xxx # DNS1 of network connection
nameserver yyy.yyy.yyy.yyy # DNS2 of network connection

  2. Create script start_vpn2.sh

    cp resolv.conf /etc/
route add -net 10.0.0.0 netmask 255.0.0.0 gw zzz.zzz.zzz.zzz