One important part of using SSL is to keep track of expiration dates on certificates. Most client software will rightfully refuse to connect to a server that presents an expired certificate, resulting in interrupted services. For CentOS and other RHEL based distributions, the crypto-utils package contains a very useful utility called certwatch, which can be used to detect whether a certificate will expire in the near future. Read More
Tag: cron
How To Use Cron To Automate Tasks
Installation
Almost all distros have a form of cron installed by default. However, if you’re using a system that doesn’t have it installed, you can install it with the following commands:
For Ubuntu/Debian:
apt-get update
apt-get install cron
For Cent OS/Red Hat Linux:
yum update
yum install vixie-cron crontabs
You’ll need to make sure it runs in the background too:
chkconfig crond on
service crond start