selinux

network attacks, such as firewalls, network traffic analysis tools, and intrusion detection tools. After virtualization, multiple service applications are run on the same physical host. If a virtual machine is cracked, attackers only need to destroy the system management program to destroy all services. If the system administrator program has a vulnerability, attackers can take over all virtual machines hosted on the host, or even write malicious code to the Virtual Machine images that the host

Linux under the SELinux detailed1.SElinux Full Name:security-enhanced Linux, flexible mandatory access control (MAC) system, and embedded in the Linux kernel, only the collection of minimal access, 2. View the file context: Ls-z[Email protected] ~]# ls-z-RW-------. Root root system_u:object_r:admin_home_t:s0 anaconda-ks.cfg-rw-r--r--. Root root system_u:object_r:admin_home_t:s0 Install.log-rw-r--r--. Root r

The SELinux parameter was modified today when a software was installed. Modify the SELinux parameter value to disable. Causes the Linux system to fail to boot. The following error occurred Kernel Panic-not syncing:attempted to kill init!After the group to ask friends and their own operation and internet search, finally found a solution.When the Linux boot interface appears, press F2 to enter the following i

files. such as because the administrator gives the file a broader permission, so that the normal user to the key files have Modify permissions, and so on.(2) Rules for permission monitoring of specific processes and specific file resources: Mandatory/delegated access control,MAC(Mandatory access controls)The same user gets different permissions when they use different processes. According to the permissions of the process to determine the permissions, the rights control body from the user into

Http://www.bitscn.com/os/linux/200904/158771.html Secure Linux Container Implementation Guide Lightweight containers are also known as Virtual Private Servers (VPS) or jails, They are tools that are often used to restrict untrusted applications or users. However, the recently constructed lightweight containers do not provide adequate security assurances. Once these containers are enhanced with SELinux or Smack policies, you can implement a more secure

Tags: enforce bar ISP command RMI IMG Outstanding ABS Linux SystemSELinux (security-enhanced Linux) is the United States National Security Agency (NSA) implementation of mandatory access control, is the most outstanding new security subsystem in the history of Linux.Turn off SELinuxTemporary entry into force:Order temporary Effect: Setenforce 0 (temporary effective can be directly with setenforce 0) 1 enable 0 alarm, do not enablePermanent entry into force:# Back up before

user programs and their background programs can still run normally and maintain their security system structure.To put it simply, no program configuration error can cause the entire system to crash.Install the SELinux kernel, tool, Program/toolkit, and documents of SELinux. You can download them on the Linux website for enhanced security. You must have an existing Linux system to compile your new kernel, i

Troubleshooting instance caused by SELinux This was the first time we encountered such an error. We had no clue about the troubleshooting process and had been entangled in the child setpgid. We can also see some cases when setting selinux in the google process, so I want to start from this aspect. The reason is that selinux is enabled, but it is strange that afte

1. What is SELinuxSELinux, kernel-level enhanced firewallElinux provides a flexible, mandatory access control (MAC) system embedded in the Linux kernel. SELinux defines the access and transformation permissions for each user, process, application, and file in the system, and then it uses a security policy to control the interaction between these entities (users, processes, applications, and files), and the security policy specifies how to check strict

To view the SELinux status:1./usr/sbin/sestatus-v # #如果SELinux Status parameter is enabled is on, SELinux Status:enabled2, Getenforce # #也可以用这个命令检查To turn off SELinux:1, temporarily shut down (do not restart the machine):Setenforce 0 # #设置SELinux become permissive mode Seten

# # # #二. Unit Tenth # # # ## # # # #selinux的初级管理 ###################1. What when SELinuxSELinux, kernel-level enhanced firewall2. How to manage SELinux levelsSELinux turned on or off)Vim/etc/sysconfig/selinuxselinux=disabled # #关闭状态Selinux=enforcing # #强制状态Selinux=permissive # #警告状态Getenforce # #查看状态When

How do I perform quartus II in an environment where SELinux is installed? (SOC) (Quartus II) (Linux) (RedHat)When you install Linux in general, you also install SELinux at the same time, which will cause the Quartus II Linux board to not function normally, how to resolve it?Introduction Use Environment: Windows XP SP3 (Host os) + Reahat 5.4 (guest OS) + VirtualBox 4.1.4 + Quartus II 11.0How to install the L

Content:Introduction and use of SELinux1. SELinux IntroductionSelinux:secure Enhanced Linux is the NSA "nsa=the National security agency" and SCC (secure Computing Corporation) developed a security module for a mandatory access control for Linux. Released in 2000 under the GNU GPL, integrated into the kernel after the Linux kernel version 2.62. SELinux and common Linux differences :Dac:discretionary access

Reprinted: http://www.ppkj.net/tag/selinux/ I opened SELinux and the firewall, but I did not expect the problem of vsftp. FTP logon error: 500 Oops: cannot change directory. Let's take a look at the Causes and Countermeasures for this problem. First, analyze the cause of the conflict:1. to lock the user in the home directory, open chroot_local_user in vsftpd. conf.In this way, the FTP logon user's "/" is

the files are modified, depressed for a whole day. Checking all the Apache configuration files, all feel fine, but where is the problem?Finally inadvertently found that Linux has selinux such a thing, it is to ensure that HTTP-based server security is born. Therefore, as long as the prohibition of selinux, the problem can be solved. The method to disable SELinux

Disable selinux in CentOS7 Selinux must be disabled when Cobbler and Puppet are installed. However, after CentOS7 is downloaded and installed, SElinux is enabled by default, As follows:[Csharp] view plaincopy [Root @ rdo ~] # Sestatus SELinuxstatus: enabled SELinuxfsmount:/sys/fs/selinux SELinuxrootdirectory:/etc/

1. What is a program (process) 1.1 programs and programs (Process program): Subroutines and parent programs, FORK-AND-EXEC, System services 1.2 multi-worker environment for Linux 2. Work Management (Job control) 2.1 What is Job Management 2.2 job control management: , [Ctrl]-z, Jobs, FG, BG, kill 2.3 offline management issues: Nohup 3 . Program Management 3.1 program observation: PS (ps-l, PS aux, zombie), Top, Pstree 3.2 Program management: Signal, kill, Killall 3.3 in the order of o

SELinuxI. SELinux mode of operationModify File/etc/selinux/configSet selinux=disabled DisableSet Selinux=permissive Loose modeSet selinux=enforcing Enforcement ModeTwo. View the current operating mode[Email protected] ~]# GetenforceEnforcingThree. Temporarily modify the oper

Turning off SELinux should be replaced with user input variables, but that's fine.==========================================#！ Bin/bashClearecho "--------------------"Echo-e "\033[34mthis file controls the state of SELinux on the system.\033[0m"Echo-e "\033[33m selinux\033[0m = can take one of these three values:"ECHO-E "\033[4me\033[0mnforcing-