nessus linux

, such as: DD, cpio, tar, dump, etc.7 Other 7.1 using firewallsFirewall is an important aspect of network security, we will have another topic to elaborate on the firewall, including the principle of the firewall, Linux 2.2 kernel under the IPChains implementation, Linux 2.4 kernel NetFilter implementation, commercial firewall product applications.7.2 Using third-party security toolsLinux has a lot of good

;/etc/issueCp-f/etc/issue/etc/issue.netEcho >>/etc/issue2) for Apache configuration file, find Servertokens and serversignature two directive, modify its default properties as follows, use no echo version number:Servertokens PRODServersignature OFFVi. iptables Firewall Rules:Iptables-a input-p--dport 22-j ACCEPTIptables-a input-i eth0-p TCP--dport 80-j ACCEPTIptables-a input-m State--state established,related-j ACCEPTIptables-a input-j DROPThe above rule will block TCP active pick-up from the in

hydra, nessus, and nmap.Hey! Most tools can only run on Linux!Now Linux is not a problem. After all, it is free and I can run it on my own system. But who wants to spend the last weekend installing and configuring the system? At least I don't want. What if I want to test the machines used at work? Do I need to be authorized to install

Tags: System ops LinuxBasic knowledge of computer playing:CPU (operator, Controller), memory, I/O (input device, output device)程序运行模式： 用户空间：user space,us （可执行普通指令） 内核空间：system space （可执行特权指令）POS：Postable Operating System 可移植操作系统 POSIX 可移植操作系统规范运行程序格式：Windows：EXE，库文件dll（dynamic link library 动态链接库）Linux：ELF，库文件so（shared object 共享对象）程序：指令+数据 指令：只读 数据：读写程序：算法+数据结构库调用，系统调用：允许被调用的程序；malloc() 申请内存空间；free() 释放内存空间；编程语言 汇编语言：微码编程（系统级程序员） 系统中某些于硬件相关的特有代码、驱动程序开发； 高级语言：C、C++

Linux services)It is important for Linux users. Disabling unnecessary services can make Linux run more efficiently, but not all Linux services can be disabled. After installing centos Linux today, we found that many services were started when

The best Linux security tool-general Linux technology-Linux technology and application information. See the following for details. As a Linux administrator, it is very important to defend against viruses, spyware, and rootkit. The following lists 10 Linux security tools

In Linux, apart from binary software distribution, there are also software packages in the form of source code. Let's talk about the installation and uninstallation of these software: I. Installation and uninstallation of binary distribution software packagesThe binary distribution of Linux software refers to the release form of a compiled binary software package. Its advantage is that it is easy to install

, configuration and advanced applications;5, Nagios Introduction, Advanced and high-level applications;6, integrate cacti, ntop and Nagios to build enterprise-level open source monitoring platform;7. Introduction of other monitoring toolsSeven, HTTP proxy accelerator and application server:1, the introduction of Nginx, advanced, tuning and LNMP implementation; Nginx implement Web reverse proxy, using Nginx to implement Web load balancing application;2. Tomcat architecture, installation configura

Linux-(2) Basic file operations in Linux, linux-linux In linux, everything is files, directories are files, and hardware is files. Therefore, basic file operations are especially important. 1. List the contents of the directory: Ls Parameters: -A: displays all files (includ

Logout Exit SystemGedit Text Editor ToolsUname–r View kernel version information, uname–a more detailsCat/proc/cpuinfo viewing CPUsCat/proc/meminfo Viewing memoryHostname Viewing host namesIfconfig eth0 view eth0 IP AddressAlias ls= ' ls–ll ' setting aliasesTo view the path of the current terminal: TTYView current Shell:echo $SHELLAll Shell:cat/etc/shells under the current systemView CentOS System hostname Format: Echo $PS 1Distinguish internal or external commands: Type CDWhich find the locatio

;/tmp/dropip For I in $ (CAT/TMP/DROPIP) Do /sbin/iptables-i input-s $i-j DROP /sbin/iptables-d input-s 122.228.193.245-j DROP echo "$i kill at ' Date '" >>/var/log/ddos Done [Email protected] ddos]# Protection against ARP attacks Binding to Ip+mac on a hardware device To the computer room to do two-way binding (pay) Protection against CC attacks Limit the number of connections per unit of time: Protection for Windows Server (1), install [Symantec Terminal Prote

. As we all know,linux system everything is a file, so each process has its file descriptor, The Nginx process writes its own file descriptor to the Nginx.pid, and we need to tell Nginx to reopen a new log file (the configuration details of the log file can be seen here, simply by letting the log record what. So we need this directive:kill -USR1 `cat ${pid_path}`This instruction means: first cat to Nginx PID, is an integer, and then send the signal

Intrusion Prevention SystemHoneypot: Honeypot #诱捕Nessus,nmap Sniffer (scan) tool2, IptablesIptables/netfilter: Network layer firewall, support for connection tracking (stateful detection)Software program for a firewall based on software formIptables, formerly known as Ipfirewall (Kernel 1.x ERA), is a simple access control tool that is ported from FreeBSD to work in the kernel to detect packets. But the ipfirewall work is extremely limited (it requir

Downloadwget http://.....tar.gzExtractTAR-ZXVF xxx.tar.gzcd XXX./configure--prefix=/usr/local/xxx--with-x=/usr/local/xCompileMakeInstallationMake installNginx Start/usr/local/nginx/sbin/nginx Stop/usr/local/nginx/sbin/nginx-s Stop Focus/usr/local/nginx/sbin/nginx-s Reload httpd start, shut down, restart/usr/local/http/bin/apachectl-k [Start | stop ...]Find processPs-ef|grep xxx The above describes the Linux installation software memorandum, i

Becoming a Senior Programmer proficient in Linux programming has always been the goal of many friends. According to statistics from chinacache, the monthly salary of Linux programmers in Beijing is 1.8 times that of Windows programmers, 2.6 times that of Java programmers, and 2.9 times that of Windows programmers. At the same time, the data shows that with the increase of work experience, the income gap bet