Lesson 10

Date: 4/2/2014
Basics of Linux Security
Linux for Engineering and IT Applications


Package upgrades and md5 checksum verification

  • Run upgrades on regular bases and every time a new vulnerability discovered in installed packages: 
    
apt-get update
apt-get upgrade


  • Verify md5 checksum of downloaded software: 
    
md5sum some_file.tgz

  • Install dlocate and verify md5 checksum of the files installed with a package: 
    
apt-get install dlocate
dlocate -md5sum tcpd
dlocate -md5check tcpd

  • Install GNU Privacy Guard (GPG) to check software signature and verifying if files are genuine: 
     
gpg --verify ssh-3.2.9.1.tar.gz.sig-gpg ssh-3.2.9.1.tar.gz


    • Take me to the Course Website