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IPv6 call at IPv4 server

Discussion in 'Bug Reports' started by wmtech, Mar 11, 2024.

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  1. Mar 11, 2024 #1
    wmtech

    wmtech Active Member

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    • CentOS Version: CentOS 7.9 64bit
    • Centmin Mod Version Installed: 124.00stable
    • Nginx Version Installed: 1.25.4
    • PHP Version Installed: 8.2.16
    • When was last time updated Centmin Mod code base ? : current
    • Persistent Config:
      Code (Text):
      DISABLE_IPVSIX='y'
FORCE_IPVFOUR='y'

    Updating PHP with option 5 fails with that error:

    Code:
    Downloading PHP 8.2 from https://git.php.net/repository/php-src.git
Cloning into 'php-'...
fatal: unable to access 'https://git.php.net/repository/php-src.git/': Failed to connect to 2a02:cb41::5: Network is unreachable
    It seems the script tries to connect to an ipv6 address when the server has no ipv6 network configured and ipv6 is also disabled serverwide and in custom_config.

    Looks like a bug to me. :)
     
  2. Mar 12, 2024 #2
    eva2000

    eva2000 Administrator Staff Member

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    hmmm, where did you set the variables
    Code (Text):
    DISABLE_IPVSIX='y'
FORCE_IPVFOUR='y'

    in the persistent config file /etc/centminmod/custom_config.inc?

    what does this command return
    Code (Text):
    grep -w 'net.ipv6.conf.all.disable_ipv6' /etc/sysctl.conf

    and
    Code (Text):
    grep -w 'net.ipv6.conf.default.disable_ipv6' /etc/sysctl.conf

    and this command
    Code (Text):
    sysctl net.ipv6.conf.all.disable_ipv6

    and
    Code (Text):
    sysctl net.ipv6.conf.default.disable_ipv6
     
  3. Mar 12, 2024 #3
    wmtech

    wmtech Active Member

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    Yes.

    All of those sysctl settings are active at the server and included in /etc/sysctl.conf.
     
  4. Mar 12, 2024 #4
    eva2000

    eva2000 Administrator Staff Member

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    value of 1 or 0 ?
     
  5. Mar 12, 2024 #5
    wmtech

    wmtech Active Member

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    All "1".
     
  6. Mar 13, 2024 #6
    eva2000

    eva2000 Administrator Staff Member

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    strange then IPv6 should work. Only thing I can think of is git.php.net themselves are blocking your server's requests?
    Code (Text):
    Failed to connect to 2a02:cb41::5: Network is unreachable


    tried it and maybe git.php.net security too tight?
    Code (Text):
    ping -4 -c4 git.php.net
PING php-git2.php.net (208.43.231.11) 56(84) bytes of data.
--- php-git2.php.net ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3051ms

ping -6 -c4 git.php.net
PING git.php.net(php-git2.php.net (2a02:cb41::5)) 56 data bytes
--- git.php.net ping statistics ---
4 packets transmitted, 0 received, 100% packet loss, time 3072ms


    hmmm

    but only routine that uses git.php.net is if you try to install PHP 8.4.x alpha/pre-beta/master branch see search for 124.00stable branch via sourcegraph

    from
    Code (Text):
    Cloning into 'php-'

    it suggests you didn't enter proper php version at the upgrade prompt
     
  7. Mar 13, 2024 #7
    wmtech

    wmtech Active Member

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    Hm. I just tried to install PHP 8.1.27 at that server and it worked well. This error just comes up, if I try to install PHP 8.2.16.

    PHP 8.2.16 is a proper PHP version however. It looks like the script thinks that this version does not exist and calls git.php.net?

    I might try 8.2.15 and see if that fails too...

    But the script should not call any IPv6 address if IPv6 is disabled at that server. This will never work as expected. ;-)
     
  8. Mar 14, 2024 #8
    eva2000

    eva2000 Administrator Staff Member

    53,209
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    Nginx 1.27.x
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    looks like there's 1 bug DISABLE_IPVSIX='y' should disable IPv6 on system and another bug for git.php.net not resolving for experimental latest PHP versions i.e. at the time 124.00stable max supported PHP 8.1, so PHP 8.2 was experimental and called from git.php.net. On 130.00beta01 max supported PHP 8.3, so PHP 8.4 is experimental and doesn't actually call from git.php.net (which has issues).

    For PHP Centmin Mod 124.00stable supported up to PHP 8.1 Centmin Mod LEMP Stack Install Nginx on CentOS
    details on switching to 130.00beta01 at https://community.centminmod.com/threads/centmin-mod-124-00stable-130-00beta01-releases.22673/
     
    Last edited: Mar 14, 2024
  9. Mar 15, 2024 #9
    eva2000

    eva2000 Administrator Staff Member

    53,209
    12,113
    113
    May 24, 2014
    Brisbane, Australia
    Ratings:
    +18,649
    Local Time:
    8:53 AM
    Nginx 1.27.x
    MariaDB 10.x/11.4+
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