How to fix Amazon S3-RequestTimeTooSkewed?

If you have configured a Amazon S3 backup server under cPanl backup configuration to upload backup files at some point come you may across an error -"RequestTimeTooSkewed".

Firstly , you need to know that Amazon S3 uses NTP system clock . The error means that our server time and that of Amazon clocks are out of sync.

For this you will need to install NTP on your server -
apt-get install ntp
OR
yum install ntp

Then , configure NTP to use Amazon server - nano /etc/ntp.conf
Add hash to default server and add below to the /etc/ntp.conf file.

server 0.amazon.pool.ntp.org iburst
server 1.amazon.pool.ntp.org iburst
server 2.amazon.pool.ntp.org iburst
server 3.amazon.pool.ntp.org iburst

Restart NTP service on the server -

service ntpd restart
OR
/bin/systemctl start ntpd.service

In case the service ntpd service doesn't start and gives an error then you will need to check - /var/log/messages
Error: cap_set_proc() failed to drop root privileges: Operation not permitted
This means container does not have sys_time enabled . You will need to login to the node to make further changes -
Login to Node:
#vzctl stop
#vzctl set 101 --capability sys_time:on --save (Replace 101 with container ID)
#vzctl start

Lastly check connection to Amazon server -

telnet s3.amazonaws.com 80
Trying 205.251.242.241...
Connected to s3.amazonaws.com.
Escape character is '^]'.
GET / HTTP/1.0

You should be able to backup data to Amazon S3 server now.

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