To exclude packages permanently edit the yum.conf file:
<sxh bash>
vim /etc/yum.conf
</sxh>
Add "exclude=package*" E.g:
<sxh bash>
[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exclude=php* kernel*  
</sxh>
\\
\\
\\
Temporary Solution:
<sxh bash>
yum update --exclude=PACKAGENAME*
</sxh>