linux security book

Linux workstation security check list Target readers This document is intended for users who use Linux workstations to access and manage system administrators in the project infrastructure team. If your team's system administrator is a remote engineer, you can use this document to help them ensure that their workstation meets the most basic

. restrict the number of programs with the SUID permission flag. Programs with this permission flag run as root, which is a potential security vulnerability. Of course, some programs must have this flag, like the passwd program. 3. BIOS security. Set the BIOS password and modify the boot sequence to disable system startup from a floppy disk. 4. User Password. User passwords are the most basic starting point

Article Title: Ten Tips to ensure Linux security. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Linux has many advantages in terms of

Basic techniques of Linux security management Chinese information position http://www.cnxxz.net Author: greenice Linux as an open source of the free operating system, with its highly efficient implicit quality, more and more users are welcome, and in the world continues to spread. It is believed that Linux will get big

eth0-m multiport-p UDP--dports 53,113,135,137,139,445-j DROP53,113,135,137,139,445 of messages dropped to UDP (primarily DNS, authentication, remote calls, files, and Printer sharing services) to the ETH0 network port# iptables-a input-i eth0-p UDP--dport 1026-j DROPPacket discards for 1026 ports that are accessing UDP on the Eth0 network port (10,261 as the next idle port, preventing port scanning)# iptables-a input-i eth0-m multiport-p tcp--dports 1433,4899-j DROPPacket discards for 1433 (SQL

Although Linux is a multi-user system like Windows NT/2000, there are many important differences between them. For many administrators who are used to Windows, there are many new challenges to ensure the security and reliability of the Linux operating system. This article focuses on Linux system

Article title: The Crazy Penguin series looks at the future of Linux security. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Don't think that your

Article Title: comprehensively improves the security performance of Linux servers. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. As we all know,

Brief Introduction to Linux security configuration steps-Linux Enterprise Application-Linux server application information. The following is a detailed description. I. Disk partitioning 1. If the system is newly installed, consider the security of Disk Partitions: 1) the ro

Article Title: Network Security Policies for Small and Medium-sized heterogeneous Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. At present, many small and medium users are

#more/var/log/secure grep refused to check it out. 2. Limit the number of programs with SUID permission flags, the program with that permission flag running as root is a potential security vulnerability, of course, some programs must have the logo, like the passwd program. 3.BIOS security. Setting the BIOS password and modifying the boot order prevents booting the system from the floppy disk. 4. User pa

Linux Security Basics: network configuration commands and linux basic configuration commands 1. ifconfig view and configure network interface information(1) set an IP addressIfconfig eth0 192.168.0.1(2) temporarily disable or enable the NICIfconfig eth0 downIfconfig eth0 up(3) set the subnet maskIfconfig eth0 netmask 255.255.255.0(4) view the status of the first

Although Linux is a multi-user system like the Windows nt/2000 system, there are a number of important differences between them. For many administrators accustomed to Windows systems, there are many new challenges to ensuring that Linux operating systems are secure and reliable. This article will focus on the Linux system sec