linux and unix security portable reference

... concise, and to the point xv xvi HackNotes Linux and Unix Security Portable Reference Whether you are brand new to the information security field and need useful starting points and ... Linux and Unix Security Portable Reference rhosts SSH’s authorized_keys Trojans Rootkits ... Hping2 VNC Server Keypebble VNC Viewer xi xii HackNotes Linux and Unix Security ... HackNotes Linux and Unix Security Portable Reference Chapter 12 The Sharp Zaurus PDA device runs an embedded version of the Linux operating system This chapter shows you the various security

Ngày tải lên: 25/03/2014, 11:22

... disk space and CPU resources needed for mail queuing and processing In addition, it’s simpler to configure a centralized set of mail relays to handle special mail- routing tables and aliases ... installation of Apache on Red Hat Enterprise Linux 5.2 is version 2.2.3 Utilizing the Red Hat package means you won’t have to manually build and redeploy when security and bug- fix releases for Apache become ... cfengine master (goldmaster), and also create a new directory under the tasks hierarchy intended for postfix: Trang 3We define variables for the renpq]h and i]ej*_b files, and copy them individu-ally

Ngày tải lên: 13/08/2014, 04:21

... software has bugs; and all manner of issues crop up that cause hosts and applications to fail System and service monitoring is automation’s com-panion tool, used to notify us when systems and applications ... Applications and hosts are added; applications change and need to be monitored differently; hosts fail permanently; and critical thresholds change You need to know your monitoring systems inside and out, ... a good understanding of the software and technologies you’re deploying Nagios is different in that it will definitely Nagios, and we provide a working configuration to get it up and running quickly

Ngày tải lên: 13/08/2014, 04:21

... attractive for security reasons, it imposes more overhead on remote hosts than the NRPE program does In addition, a site’s security policy may expressly forbid lightweight, flexible, and fast Step ... You Can Rest Easy At this ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀ and will grow and scale along with our new infrastructure As your site requires more and more monitoring, you might benefit from the a test ... +qon+lgc+j]ceko)lhqcejo+he^ata_ directory for all the paths and allow access from our etchlamp system as shown: At this point, we have the NRPE programs built and ready for distribution from the cfengine master,

Ngày tải lên: 13/08/2014, 04:21

... 2 Improving System Security Early in this book, we established that managing the contents and permission of files is the core of UNIX/Linux system administration UNIX/Linux security is also almost ... familiar operations when using cfengine to increase the security of our UNIX and Linux hosts At various points in this book, we’ve taken security into account when configuring our systems or when ... however, is recommend the book Practical UNIX & Internet Security by Simson Garfinkel, Alan Schwartz, and Gene Spafford (O’Reilly Media Inc., 2003) Security Enhancement with cfengine Cfengine

Ngày tải lên: 13/08/2014, 04:21

... expres-repetition operators (and others support XwXy instead) The acnal command can also be found on many systems If you find yourself limited by the standard cnal command and the differences between ... the lnp`e]c command and piped the output into the cnal com-฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀lnp`e]c and cnal commands enabled us to find the oqj0r systems that are running the Niagara T1 processor and then to set ... simple It executes a cnal command against the output of the lnp`e]c command on line 4, and if a match is found, three things happen: 1 On line 6, the lnp`e]c command is run again—this time to

Ngày tải lên: 13/08/2014, 04:21

... +ap_+ikp`, and the disk is partitioned according to our custom settings In addition, the lo command shows that the Apache server is Overall, FAI is a pleasure to work with The directory names and scripts ... intuitive and easy to work with, and the packages put useful starting configuration files into place In addition, the b]e)`k_ package includes sam-ple configurations for the `d_l` and pbpl`฀ ... of the configuration such as the software group to install and the disk partition (slice) layout The format is easy to understand, and because we’re taking advantage of the sample configuration

Ngày tải lên: 14/08/2014, 02:20

... 2 Improving System Security Early in this book, we established that managing the contents and permission of files is the core of UNIX/Linux system administration UNIX/Linux security is also almost ... familiar operations when using cfengine to increase the security of our UNIX and Linux hosts At various points in this book, we’ve taken security into account when configuring our systems or when ... however, is recommend the book Practical UNIX & Internet Security by Simson Garfinkel, Alan Schwartz, and Gene Spafford (O’Reilly Media Inc., 2003) Security Enhancement with cfengine Cfengine

Ngày tải lên: 14/08/2014, 02:21

... expres-repetition operators (and others support XwXy instead) The acnal command can also be found on many systems If you find yourself limited by the standard cnal command and the differences between ... the lnp`e]c command and piped the output into the cnal com-฀ ฀ ฀ ฀ ฀ ฀ ฀ ฀lnp`e]c and cnal commands enabled us to find the oqj0r systems that are running the Niagara T1 processor and then to set ... simple It executes a cnal command against the output of the lnp`e]c command on line 4, and if a match is found, three things happen: 1 On line 6, the lnp`e]c command is run again—this time to

Ngày tải lên: 14/08/2014, 02:21

... History of Unix, Linux, and Open Source / Free Software 4 2.1.1 Unix 4 2.1.2 Free Software Foundation 4 2.1.3 Linux 5 2.1.4 Open Source / Free Software 5 2.1.5 Comparing Linux and Unix 5 2.2 Security ... Group owns the Unix trademark, and it defines Unix as ``the Secure Programming for Linux and Unix HOWTO Trang 12worldwide Single UNIX Specification''.Linux is not derived from Unix source code, ... to random input) 2.1.5 Comparing Linux and Unix This book uses the term ``Unixưlike'' to describe systems intentionally like Unix In particular, the term ``Unixưlike'' includes all major Unix

Ngày tải lên: 07/04/2017, 16:35

... Commands RC Windows Enumeration Commands and Tools RC Common DOS Commands RC UNIX System and Network Commands RC Specific UNIX Enumeration Commands ... file and directory trees UNIX System and Network Commands The following is a list of the most common commands found on most UNIX and Linux distributions For more information on a particular command, ... xi xii HackNotes Network Security Portable Reference Part I Network Security Principles and Methodologies ■ ■ Security Principles and Components Asset and Risk Based INFOSEC...

Ngày tải lên: 25/03/2014, 11:22

... clear, concise, and to the point xv xvi HackNotes Web Security Portable Reference Whether you are brand new to the information security field and need useful starting points and essential facts ... Series Commands and Code Listings Throughout the book, user input for commands has been highlighted as bold, for example: [bash]# whoami root In addition, common Linux and Unix commands and parameters ... HACKNOTES ™ Web Security Portable Reference This page intentionally left blank HACKNOTES ™ Web Security Portable Reference MIKE SHEMA McGraw-Hill/Osborne New York...

Ngày tải lên: 25/03/2014, 11:22

... created a brand-new series of portable reference books for security professionals These are quick-study books kept to an acceptable number of pages and meant to be a truly portable reference The ... writing clear, concise, and to the point xi xii HackNotes Windows Security Portable Reference Whether you are new to the information security field and need useful starting points and essential facts ... NOT AND && Logical modifier AND OR || Logical modifier OR Reference Center WinPcap/libpcap Filter Reference Filter RC 30 Reference Center nslookup Command Reference Command Description server =...

Ngày tải lên: 25/03/2014, 11:22

... created a brand-new series of portable reference books for security professionals These are quick-study books kept to an acceptable number of pages and meant to be a truly portable reference The ... writing clear, concise, and to the point xi xii HackNotes Windows Security Portable Reference Whether you are new to the information security field and need useful starting points and essential facts ... Cyber-Terrorism and award-winning senior writer for Computerworld “HackNotes Windows Security Portable Reference covers very interesting and pertinent topics, especially ones such as common ports and services,...

Ngày tải lên: 07/08/2014, 17:20

... (TCP/63, UDP/63) that can be queried by command-line clients The whois protocol defines a communication standard for querying system and network information, and can be used to determine what organization ... hacker-friendly The TCP Handshake: A Brief Review Every TCP connection must first be established with a three-way handshake between the client host and the server This handshake sets the initial ... open Command Prompt window and firing: E:\hacknotes>nmap -sS -p 22,25,80,443 192.168.100.0/24 In this section, we’ll cover the command-line port scanners ScanLine by Foundstone, Inc and the Win32...

Ngày tải lên: 07/08/2014, 17:20

... queries and zone transfers, telnet, and SMTP C:\Snort\bin>snort -v icmp or (udp and port 53) or (tcp and (port 25 or 53)) As you can see, we can create complex filters using the logical operators AND ... for the decision making and verification Security Operators: Users and User Contexts Any access control decision is based on at least two elements, a who and a what The who and what may be interchangeable, ... default This can be changed using the Local Security Policy and the Domain Security Policies in Windows XP and 2003 by enabling the option Network security: Do not store LAN manager hash value...

Ngày tải lên: 07/08/2014, 17:20

... authentication and access control These responsibilities are handled by two primary security providers, a user mode component (the Local Security Authority ) and a kernel mode component (the Security Reference ... 2000 and 2003 Server Hacking Techniques & Defenses On Windows 2003 and XP, this setting is available under Security Settings | Local Policies | Security Options and goes by the name Network security: ... file handle if the security token matched for Read access only) After the process receives its handle, it will no longer have to check with the SRM for access, but if the handle is closed and then...

Ngày tải lên: 07/08/2014, 17:20

... subject, including the HackNotes Web hacking reference (Hacknotes Web Security Portable Reference by Mike Shema [McGraw-Hill/Osborne, 2003]) The Big Nasties: Command Execution In this section, we’ll ... including the excellent security web sites http://www.securiteam.com and http://packetstormsecurity.nl When you find the Perl script, simply copy and paste the script into a text file and save it with ... use in authoring and managing web content WebDAV stands for Web-based Distributed Authoring and Versioning, and is supported in IIS v5.0 by default In March 2003, Microsoft issued security bulletin...

Ngày tải lên: 07/08/2014, 17:20

... groups Creating a Group Expand Local Users and Groups and select the Groups container Right-click in the right-hand pane and select New Group Enter the group name and a description of the group’s ... secure and powerful Group Policies, exposing many more system properties and applying settings more logically and with better security All the security settings discussed in the previous chapters and ... remotely as an RPC service, and steps should be taken to ensure proper security You can review and manage WMI security from Computer Management: 134 Part III: Windows Hardening and can be disabled with...

Ngày tải lên: 07/08/2014, 17:20