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Mysql server on separate Node/VPS, How can I connect to it?

Discussion in 'MariaDB & General MySQL news & discussions' started by rdan, Jun 16, 2015.

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  1. Jun 16, 2015 #1
    rdan

    rdan Well-Known Member

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    On Linode, I got this:
    On my Nginx/PHP-FPM another Linode, I use 192.168.123.12 as mysql server, But can't connect :/
     
  2. Jun 16, 2015 #2
    Steve Tozer

    Steve Tozer Member

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    You checked the firewall for allow rules (Obvious but thought I would check) Is the server allowed access to the mysql database not just localhost when you granted permission?
     
  3. Jun 16, 2015 #3
    rdan

    rdan Well-Known Member

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    CSF already white list both VPS.
     
  4. Jun 16, 2015 #4
    rdan

    rdan Well-Known Member

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    When I created the user on MYSQL server Node, I run this:
    123.12.23.45 should be the public IP of the MYSQL server right?
     
  5. Jun 16, 2015 #5
    Steve Tozer

    Steve Tozer Member

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    Should be the public IP of the server thats connecting to it
     
  6. Jun 16, 2015 #6
    rdan

    rdan Well-Known Member

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    So:
     
  7. Jun 16, 2015 #7
    rdan

    rdan Well-Known Member

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    I don't need a mysql server running on the Nginx/php node right?
     
  8. Jun 16, 2015 #8
    Steve Tozer

    Steve Tozer Member

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    I would log into the MySQL server

    Code:
    GRANT ALL PRIVILEGES ON databasename.* TO "thedbuser"@"nginxserverip" IDENTIFIED BY "password";
    Code:
    FLUSH PRIVILEGES;
    On the nginx server mysql can be shut down
     
  9. Jun 16, 2015 #9
    rdan

    rdan Well-Known Member

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    I can connect now, Thanks!
    but how to use the Private/Local IP instead of the public?
     
  10. Jun 16, 2015 #10
    Steve Tozer

    Steve Tozer Member

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    :)
    Aslong as there is connectivity between them firewall allow for the private IP's and MySQL is listening on 0.0.0.0. You can just grant access same as above using the Private IP
     
  11. Jun 16, 2015 #11
    rdan

    rdan Well-Known Member

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    I can't even ping the private IP of Mysql server on Nginx server.
    Why is that?
    I already whitelist it on CSF.
     
  12. Jun 16, 2015 #12
    Steve Tozer

    Steve Tozer Member

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    Hmm is the IP added to the VPS's can you see the IP when you run

    Code:
    ifconfig
     
  13. Jun 16, 2015 #13
    rdan

    rdan Well-Known Member

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    I thought it will be auto added when installing an image.
    I don't see it :/
     
  14. Jun 16, 2015 #14
    Steve Tozer

    Steve Tozer Member

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    Think they need to be added manually

    Edit / Create
    Code:
    /etc/sysconfig/network-scripts/ifcfg-eth0:1
    Add the content below but changing the relevant info from the linode manager

    Code:
    # Configuration for eth0:1
DEVICE=eth0:1
BOOTPROTO=none

# This line ensures that the interface will be brought up during boot.
ONBOOT=yes

# eth0:1
# This is a private IP address. Private IPs do not have a gateway (they are not publicly routable).
# All you need to specify is the address and netmask
IPADDR=192.168.133.234
NETMASK=255.255.128.0
    Restart networking

    Code:
    service network restart
    Sorry if its a bit of an dummy guide :eek:
     
  15. Jun 16, 2015 #15
    rdan

    rdan Well-Known Member

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    This will not set it auto?
    [​IMG]
     
  16. Jun 16, 2015 #16
    Steve Tozer

    Steve Tozer Member

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    That may do it :), Sorry never used any of Linode's services :cry:
     
  17. Jun 16, 2015 #17
    rdan

    rdan Well-Known Member

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    Thanks!
    I see it now on ifconfig
    Code:
    # ifconfig
eth0      Link encap:Ethernet  HWaddr F2:3C:91:98:E1:3B 
         ....
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:494 errors:0 dropped:0 overruns:0 frame:0
          TX packets:430 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:48804 (47.6 KiB)  TX bytes:356831 (348.4 KiB)

eth0:1    Link encap:Ethernet  HWaddr F2:3C:91:98:E1:3B 
          inet addr:192.168.146.26  Bcast:192.168.255.255  Mask:255.255.128.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

lo        Link encap:Local Loopback 
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:6 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:504 (504.0 b)  TX bytes:504 (504.0 b)
    But still I can't ping it on Nginx server :/
     
  18. Jun 16, 2015 #18
    Steve Tozer

    Steve Tozer Member

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    Have you configured the Private iP also on the nginx sever
     
  19. Jun 16, 2015 #19
    rdan

    rdan Well-Known Member

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    That! Fixed it :D
    Thanks a lot!
     
  20. Jun 16, 2015 #20
    Steve Tozer

    Steve Tozer Member

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    Great stuff :D Glad ya got it working (y)
     
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