snort cookbook

Article Title: the IDS intrusion detection tool in 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. This article briefly introduces several Linux IDS intrusion detection tools, such as psad, Apparmor, and SELinuxu. First, let's take a look at the principles and practices of the intrusion detection system. If you only have one computer, it is entirely po

Article Title: Introduction to four major IDS intrusion detection tools on the Linux platform. 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. If you only have one computer, it is entirely possible for you to spend a lot of time carefully reviewing system vulnerabilities and problems. Maybe you don't really want this, but it does. However, in the real world,

This article briefly introduces several Linux IDS intrusion detection tools, such as psad, Apparmor, and SELinuxu. First, let's take a look at the principles and practices of the intrusion detection system. If you only have one computer, it is entirely possible for you to spend a lot of time carefully reviewing system vulnerabilities and problems. Maybe you don't really want this, but it does. However, in the real world, we need some good tools to help us monitor the system, and warn us about wh

needFive, Linux physical securityPhysical security protection of the serverSet the password to grub, even if the attacker is physically in contact with the operating systemLocking the terminal with VlockVi. information collection of cyber securityNetwork host Survival TestPingNmapTelnetNetwork host survivability Test protectionInstall the firewall to screen out the ping test.Installs snort time to detect system status.Find Network topologyZone Transf

accurate data 2294.2.2 Classification of network security Events 230The difference between 4.2.3 Alarm and ticket 2344.2.4 Using Ticket 2354.2.5 joined the Knowledge Base 2364.2.6 Security Event Extraction 2374.2.7 Ossim's Correlation engine 238Cross-correlation of 4.2.8 events 2394.3 Alarm aggregation 240Example of 4.3.1 alarm sample 2404.3.2 Event Aggregation 2414.3.3 Event Aggregation Example 242Representation of 4.3.4 Event aggregation in Ossim 243Redundant alarms in 4.3.5 Siem 2444.3.6 Mer

to the/etc/modules. conf file. Now let's set up a NIC interface without ip addresses. Edit file/etc/sysconfig/network-scripts/ifcfg-eth0 Vim/etc/sysconfig/network-scripts/ifcfg-eth0DEVICE = eth0USERCTL = noONBOOT = yesBOOTPROTO =BROADCAST =NETWORK =NETMASK =IPADDR = After archiving, use ifconfig to activate our eth0 interface. 　　Stealth Here we use the snort program. If you do not have this program on your computer, you can download

store one or all rules, which are command files, the System reads the ipchains configuration file and stores it as a file. You can add the-V parameter to list detailed actions.Example:Ipchains-save-V> filenameResult:To restore ipchains rules, run the following command:Use Webmin to manage ipchainsAfter reading the above instructions, readers may feel very difficult. In fact, we can also manage ipchains firewalling in third party modules of Webmin, as shown in:There are five security levels: Dis

track them. Maybe a ticket system is the most suitable. In this case, the IDS system creates a ticket, and a member of the security group is responsible for receiving calls and alarms. If the ticket is not updated within four hours, use a pager to call a manager. I have seen such a ticket system. Q: Is IPSes dangerous because it may block normal communication? A: IPSes has caused more problems than solved in history. However, the use of today's technology rarely blocks normal communication by m

bidirectional, there is a problem of mutual conversion between VO and PO. This will cause programming troubles. We always need to retrieve data using the getter method, the setter method is used to assign values to attributes of the other party. In many cases, attributes are cumbersome, and the Dozer tool can simplify this problem. Dozer (http://dozer.sourceforge.net/) is a JavaBean ing tool that can realize mutual assignment between object property values. Dozer supports simple type ing, compo

1. Ubuntu installation MySQLHow to install:$ sudo apt-get install Mysql-server$ sudo apt-get install mysql-client$ sudo apt-get install Libmysqlclient-dev#python DB API$ sudo apt-get install Python-mysqldbChecksudo netstat-tap | grep MySQLRunMysql-u root-pSimple commands:mysql> show databases;mysql> use MySQL #use database MySQLMysql> Show tables;TIPs:1. Always ends an argument with a '; '2. Not case-sensitive except TABLE and DATABASE names2. Learn a little simple command "MYSQL

://soundcloud.com/user608300139/zjgmlvjx6driHttp://soundcloud.com/user608300139/b-11Http://soundcloud.com/user608300139/6wk0uqja0rfuHttp://soundcloud.com/user608300139/njivueiuyt56Http://soundcloud.com/user608300139/b-12Http://soundcloud.com/user608300139/7nunbcanhqjeHttp://soundcloud.com/user608300139/b-13Http://soundcloud.com/user608300139/jdf3txix1qsnHttp://soundcloud.com/user608300139/b-14http://soundcloud.com/user608300139/eu0qoxzcpe1fHttp://soundcloud.com/user608300139/22-1Http://soundclou

hundreds of protocols and media types; has a command-line version named Tethereal that resembles Tcpdump (a Network Protocol analysis tool under Linux). I have to say that ethereal has been plagued by a number of remotely exploitable vulnerabilities, so always upgrade it and use it sparingly in insecure networks or hostile networks, such as a security conferencing network. -------------------------------------------------------------------------------- #3

rule match all. Only one option name is currently supported: Event Meaning: Generating alarm events Format: Event msg Allowed parameter values: MSG is a string passed to the log Rule instance: Signature S2b-356-5 { Ip-proto = = TCP Dst-port = 21 Event "FTP passwd retrieval Attempt" Tcp-state Established,originator Payload/.*[rr][ee][tt][rr]/ Payload/[/x20/x09/x0b//.] *passwd[/x20/x09/x0b]*$/ Requires-reverse-signature! Ftp_server_error } This rule matches whether the client request se

reject JavaScript code. This article discusses SQL injection and CSS attack vulnerability detection technologies. There have been a lot of discussions on these two WEB-based attacks, such as how to launch attacks, their impact, and how to better compile and design programs to prevent these attacks. However, there is not enough discussion about how to detect these attacks. We use the popular open-source IDS Snort [ref 3] to construct a regular express

output results, you can clearly see the results of Telnet! Sure enough, Telnet data is in the 80-Port packet! Security problems brought by Httptunnel Write here, we can imagine, if the administrator completely trust the firewall, then in a network with such a hidden trouble, what will happen? We can see that over the years, the reliance on firewalls has been included in the top 10 security issue of Sans. That being the case, a natural question arises: can this httptunnel behavior be found?

Require_once ("Ossim_db.inc");Class Event {var $id;var $timestamp;var $sensor;var $interface;var $type;var $plugin _id;var $plugin _sid;var $protocol;var $src _ip;var $dst _ip;var $src _port;var $dst _port;var $condition;var $value;var $time _interval;var $absolute;var $priority;var $reliability;var $asset _src;var $asset _dst;var $risk _c;var $risk _a;var $asset _src;var $asset _dst;var $snort _sid;var $snort