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
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
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
#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.
