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How to know if iPhone is new or refurbised or replacement iphone.


It is very simple to check if your iphone is new or refurbised. Follow the next step.

1. Go to setting

1. Click General. 

2. Click About. 



If the model first letter start with M then = New

If the mode first letter start wifh F = refurbished  then its is a refurbised device.


Refurbished are repair device or replacement iphone.


Tips: you can check the physical iphone and check your serial number at apple website.

Admin Admin Author

Installing Oracle XE on CENTOS 7.5



Setup CENTOS 7.5 on cloud and install basic tools.

yum install nano -y

yum install unzip -y

yum install bc -y

yum install wget -y


Oracle XE required SWAP files for setup


First you need to check current swap file.

swapon -s

Next check available space.


# Create 2GB swap file

dd if=/dev/zero of=/swapfile bs=1024 count=2048kmkswap /swapfileswapon /swapfile


echo "/swapfile swap swap defaults 0 0" >> /etc/fstab

hown root:root /swapfile chmod 0600 /swapfileset


Next Download 

Oracle XE express

rpm -ivh oracle-xe-11.2.0-1.0.x86_64.rpm

Next run the configuration script#

/etc/init.d/oracle-xe configure



To prevent TNS error during OCI_CONNECT.

sebool -P httpd_can_network_connect 1 

Admin Admin Author