copy pyenv installation onto other nodes

the step Im working on copying pyenv installation.

seems it’s simple, after setting env. it failed.

the problem is :

 

well after checking, it was the problem that ~/.pyenv/libexec was not in the $PATH.

comparing the src and dest env.:

the problem is that pyenv is now a binary, not sym.link instead.

FIX:
1. using zip -y or –symlinks option on backup.
2. or after unzip, remove pyenv binary under ~/.pyenv/bin/, install sym-link.

avahi-daemon[532]: SO_REUSEPORT failed: Protocol not available

scenario:

hit message error on os messages:

service avahi failed to start.

the problem is that SO_REUSEPORT is involved in linux kernel 3.9, while EK7 uses linux 3.10+.   but oracle uek kernel not yet.

w/r:

Reference:

Bug 484212 – net-dns/avahi-0.6.31-r2 with kernel <3.9 – avahi-daemon[3239]: SO_REUSEPORT failed: Protocol not available

Socket options SO_REUSEADDR and SO_REUSEPORT, how do they differ? Do they mean the same across all major operating systems?

WARNING : /lib64/libgudev-1.0.so.0: undefined symbol: g_type_class_adjust_private_offset

This is a scenario on xfce desktop crash after update some packages.

Error details:

 

Fix:

About libgudev, it’s a latest update on package: systemd/libgudev

 

check  oracle yum website:

glib2-2.36.3-5.el7.x86_64.rpm 14-May-2014 00:58 2.1 M
glib2-2.40.0-4.el7.x86_64.rpm 26-Dec-2014 03:17 2.2 M
glib2-2.42.2-5.el7.x86_64.rpm 21-Nov-2015 16:00 2.2 M

My glib2 package version is outdated .

Fix:
1. download the latest glib2-2.42.2
2. switch the terminal or recovery mode.
3. update glib2 package.
4. reboot to graphic mode.

firefox 39+ cannot access SSLv3 sites

Well, as described in
firefox_39_completely_breaks_older_sslv3_pages

I cannot access sslv3 sites on error: SSL_ERROR_UNSUPPORTED_VERSION

alternative… using Firefox38… …………

firefox-38.3.0-2.el7.centos.x86_64

set about:config to :