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Secure passwords Passwords are the primary method that Red Hat Enterprise Linux 7 uses to verify a user’s identity. This is why password security is so important for protection of the user, the workstation, and the network. By default RHEL uses shadow passwords which eliminate this type of attack by storing the password hashes in […] [gview file=”http://rmohan.com/wp-content/uploads/2015/09/Solaris_Build2.pdf”] Recently when I am using arrays in a script I got the error message as “Shell script arrays Syntax error: “(” unexpected”. $ sh arrays.sh #In arrays.sh script I defined some arrays trying to extract values form it The out put I got after running the script is below Shell script arrays Syntax error: “(” […] Protect your system from internal & external security vulnerabilities Introduction Solaris security broadly falls under two groups – one is where the system is accessible using local area network/vlan and it has to be secured against unauthorized access. Second is system is accessible over the Internet to a number of persons and it has to […] 1. Purpose of OS Hardening Computers and network elements connected to networks are vulnerable to attacks. The following is a list of commonly known types of attacks: 1. Viruses, worms, backdoors and trojans?2. Wire tapping and sniffing?3. Password cracking?4. Exploits of known vulnerabilities such as software buffer overflow 5. Denial of services (DOS) Some of […] |
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