Featured CentOS 7.x How to help test .08 CentOS 7 Betas with Github code ?

test server is basically same as non-test server. Set up 1 and then do same steps to setup another

I doubt updating Centmin Mod was the cause of high cpu loads given what you explained. See my reply at My service got suspended due CMM updates | Centmin Mod Community

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Virtualbox Oracle VM VirtualBox is free to download and use and you install it on your own local PC. Think of it has having VPS guest servers you can create and destroy on your own local pc. You can install any linux os in isolation as guest servers. Example of CentOS 7.0 install on Virtualbox CentOS 7.x - CentOS 7.0 Install on VirtualBOX Guest Server | Centmin Mod Community Virtualbox uses snapshots to save guest server states as backups, so you can revert to a previous state so if you mess up, just revert the snapshot.

example from my CentOS 7 testing

 

the answer is in the log

Code:

[WARNING] Sorry, cleartext sessions are not accepted on this server.

pure-ftpd setup i made requires Explicit TLS/SSL enabled with PASV enabled. What FTP client you using ? try filezilla as per images and instructions posted at Centmin Mod .08 beta + pure-ftpd virtual FTP user support | Centmin Mod Community (at bottom of first post there's also a list under Compatible FTP clients for SSL/TLS for compatible FTP clients as not all FTP clients are compatible)

Using Filezilla FTP Client with FTP Explicit TLS/SSL



Transfer mode = Passive

 

That info is useful it might be related to lines 731-742 of centmin.sh for centos 7.x - with less than 2GB of memory, centmin.sh attempts to create a 2GB disk based /tmp disk. But CentOS 7 after centmin mod install occupies ~7.5GB of disk space. So that's 9.5GB total. You have 10GB KVM so probably run out of disk space. Try creating KVM instances with minimum 16GB disk space and a see.

Lines 708-718 of centmin.sh, allows for >8GB memory detection which instead of 2GB disk based /tmp, creates tmpfs ram disk based /tmp so that is why when you raise to 10GB memory, you do not have problems

 

problem is VM disk free space not host system disk free space. Have you actually tried with 16GB disk sized VM yet ?

I updated .08 beta 02 CentOS 7 Beta Branch - update centmin.sh /tmp creation routine for .08 beta | Centmin Mod Community with also a 1GB memory detection routine for a 1GB /tmp on disk as being smallest size instead of 2GB /tmp on disk for <2GB memory detection. That would give 7.5+1 = ~8.5GB used disk space in theory instead of 9.5GB.

you can also try these on 1GB VM the following commands manually and post the output and errors you get at each step/cmd

Code:

       rm -rf /tmp
       dd if=/dev/zero of=/home/usertmp_donotdelete bs=1024 count=1000000
       echo Y | mkfs.ext4 /home/usertmp_donotdelete
       mkdir -p /tmp
       mount -t ext4 -o loop,rw,noexec,nosuid /home/usertmp_donotdelete /tmp
       chmod 1777 /tmp
       echo "/home/usertmp_donotdelete /tmp ext4 loop,rw,noexec,nosuid 0 0" >> /etc/fstab
       rm -rf /var/tmp
       ln -s /tmp /var/tmp 

could be related to mount with -o loop

also output from these 2 commands

Code:

losetup -f
losetup -a

also what kernel you using ?

Code:

uname -r

also check these 2 commands

Code:

yum -y install virt-what
virt-what

 

good to wrap output in CODE tags in future

fixed the typo and updated .08 beta 02 update centmin.sh fix misplaced curly bracket for .08 beta · centminmod/centminmod@637e629 · GitHub misplaced curly brace from previous update update /tmp creation routine in centmin.sh correct log path · centminmod/centminmod@2c1502b · GitHub

 

what version of PHP ? if it's PHP 7, those listed PHP extensions, igbinary, geoip, imagick, memcache and memcached are not yet supported in PHP 7.x - see PHP-FPM - PHP 5.7 (PHPNG) support testing for Centmin Mod betas | Page 3 | Centmin Mod Community

if it's a PHP major version upgrade or downgrade, you should of auto detected previously installed PHP extensions, if not just recompile then via centmin.sh menu options 10 for igbinary, memcache, memcached.

 

if site is html based, then you need to edit staticfiles.conf or create a separate staticfiles_ssl.conf if you have non-ssl sites sharing same server and comment out staticfiles.conf and use staticfiles_ssl.conf include in your ssl vhost conf file

and add to html context location the HSTS header

Code:

add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";

so

Code:

    location ~* \.(html|htm|txt)$ {
        add_header Strict-Transport-Security "max-age=31536000; includeSubdomains";
        add_header Cache-Control "public, must-revalidate, proxy-revalidate";
        access_log off;
        expires 1d;
        break;
        }

 

Public key pinning is left to end user to do SSL - Public Key Pinning HPKP | Centmin Mod Community as it's experimental and according to Mozilla isn't recommended for production sites yet