25 Hardening Security Tips for Linux Servers
Everybody says that Linux is secure by default and agreed to some extend (It’s debatable topics). However, Linux has in-built security model in place by default. Need to tune it up and customize as per your need which may help to make more secure system. Linux is harder to manage but offers more flexibility and configuration options. Securing a system in a production from the hands of hackers and crackers is a challenging task for a System Administrator. This is our first article related to “How to Secure Linux box” or “Hardening a Linux Box“. 1. Configure the BIOS to disable booting from CD/DVD, External Devices, Floppy Drive in BIOS. Set GRUB Password to Protect Linux Servers 2. It’s important to have different partitions to obtain higher data security in case if any disaster happens. / /boot /usr /var /home /tmp /opt 3. Do you really want all sort of services installed?. # /sbin/chkconfig --list |grep '3:on' # chkconfig serviceName off # yum -y remove package-name 4. # netstat -tulpn 5.
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