Category: Security

How to Setup Chroot SFTP in Linux (Allow Only SFTP, not SSH)

May 25, 2016 by Linux Guru

Filed under Linux, Security

Last modified June 14, 2016

If you want to setup an account on your system that will be used only to transfer files (and not to ssh to the system), you should setup SFTP Chroot Jail. 1. Create a New Group Create a group called sftpusers. Only users who belong to this group will be automatically restricted to the SFTP chroot environment on this system. # groupadd sftpusers 2. Create …

Configure vsftpd to Use SSL/TLS

January 13, 2016 by Linux Guru

Filed under Security, Unix

Last modified July 15, 2016

Configure vsftpd to Use SSL/TLS FTP (file transfer protocol) is a way to transfer files between local and remote servers. Although very popular and ubiquitous, the use of this method of file transfer has fallen out of favor due to the lack of security inherent in its design. A very capable alternative is SFTP, as mentioned above. This protocol implements file sharing over SSH. If …

Securing Wireless Network

January 7, 2016 by Linux Guru

Filed under Security

Last modified July 15, 2016

Securing Wireless Network Some of the things can do to protect wireless network: 1] Secure wireless router or access point administration interface: Most routers and access points have an administrator password that is required to sign into the device and modify the configuration settings. By default these devices use weakly typed password such as the manufacturer’s name (e.g Linksys) or ‘password’, so better change the …

Choose UTM (Unified Threat Management) for your Network

December 28, 2015 by Linux Guru

Filed under Security

Last modified June 15, 2016

Choose UTM (Unified Threat Management) for your Network Following are some question when you evaluates UTM and choose one from many UTM boxes. 1] How Does the UTM Solution Perform? 2] Which Security Technologies Are Included? ✓ Firewall ✓ Application control ✓ IPsec and SSL VPN ✓ IPS (Intrusion prevention systems) ✓ Web content filtering ✓ Anti-spam ✓ Data loss/leakage protection ✓ Anti-virus and anti-spyware …