Index

A

• access control list (ACL)
  • implementing / Implementing access control list (ACL), How to do it…, There's more…
• acct
  • used, for monitoring user activity / Monitoring user activity using acct, Getting started, How to do it?, How it works...
  • reference link / Getting started
• Adepto / How to do it?

B

• bandwidthd / How to do it...
• bash vulnerability, through Shellshock
  • exploring / Understanding the bash vulnerability through Shellshock, How to do it…

C

• Certificate Signing Request(CSR) / How to do it...
• Change Mode (chmod) command
  • used, for changing file permissions / Changing the file permissions using the chmod command, How to do it…
• Channel Connection (SSH) / How to do it…
• checksum
  • used, for conducting integrity checks of installation medium / Conducting integrity checks of the installation medium using checksum, How to do it…, See also

D

• Denial of Service (DoS) / Blocking spoofed addresses
• Destination Unreachable ICMP packets / How to do it..., How it works...
• Digital Evidence and Forensic Toolkit (DEFT)
  • about / DEFT – Digital Evidence and Forensic Toolkit
  • download link / Getting ready
  • using / How to do it..., How it works...
• directory details
  • viewing, with ls command / Getting ready, How to do it…, How it works…
• disengage Network Manager / How to do it...

E

• eavesdropping
  • about / Eavesdropping
  • service vulnerabilities / Service vulnerabilities
  • Denial of Service (DoS) attack / Denial of Service (DoS) attack
• EchoICMP packets / How it works...

F

• file
  • handling, with move (mv) command / File handling using the mv command (moving and renaming), How it works…, There's more…
• file details
  • viewing, with ls command / Getting ready, How to do it…, How it works…
• file permissions
  • changing, with Change Mode (chmod) command / Changing the file permissions using the chmod command, How to do it…, There's more...
• files
  • copying remotely / Copying files remotely, How to do it..., How it works...
• firewall
  • configuring, IP tables used / Using Iptables to configure a firewall, How to do it...

G

• Git tool / Getting ready
• glance
  • used, for system monitoring / Using glances for system monitoring, How to do it…
• GtkHash
  • about / See also
  • reference link / See also

H

• Helix
  • about / Helix
  • reference link / Getting ready
  • using / How to do it?, How it works...
• hosts
  • scanning, with Nmap / Scanning hosts with Nmap, How to do it…, How it works…
• Host Unreachable ICMP packet / How to do it...

I

• incoming traffic
  • blocking / Blocking incoming traffic, How to do it..., How it works...
• integrity checks, of installation medium
  • conducting, checksum used / Conducting integrity checks of the installation medium using checksum, How to do it…
• Intrusion Detection System (IDS) / Tripwire
• Iptables / Getting Ready
• IP tables
  • used, for configuring firewall / Using Iptables to configure a firewall, How to do it...

K

• Kali 2.0
  • download link / Getting ready
• Kali Linux
  • about / Kali Linux
  • using / How to do it..., How it works...
• Kerberos server
  • setting up, Ubuntu used / Setting up a Kerberos server with Ubuntu, How to do it..., How it works...
• kernel
  • using, requisites / Requirements for building and using a kernel
  • building, requisites / Requirements for building and using a kernel
  • configuring / Configuring and building a kernel, How to do it…, How it works…
  • building / Configuring and building a kernel, How to do it…, How it works…
  • installing / Installing and booting from a kernel, How to do it…, How it works…
  • booting from / Installing and booting from a kernel, How to do it…, How it works…
  • debugging / Testing and debugging a kernel
  • testing / Testing and debugging a kernel
• kernel, on boot
  • debugging / Debugging a kernel on boot, How to do it…
• kernel source
  • about / Retrieving a kernel source
  • retrieving / Retrieving a kernel source, How to do it…, How it works…
• key-based authentication into SSH
  • used, for restricting remote access / Restricting remote access with key-based login into SSH, How to do it...

L

• LDAP server
  • installing, on Ubuntu / Install and configure a basic LDAP server on Ubuntu, How to do it…, How it works…
  • configuring, on Ubuntu / Install and configure a basic LDAP server on Ubuntu, How to do it…
• Linux
  • security policy / The security policy of Linux
  • patches, applying on / Applying patches on the Linux systems
• Linux kernel
  • URL / How to do it…
  • download, URL / How to do it…
• Linux Unified Key Setup (LUKS) disk encryption
  • about / Using the LUKS disk encryption
  • functionalities / Using the LUKS disk encryption
  • using / How to do it…, How it works…
• Logcheck
  • used, for viewing log files / Viewing and managing log files using Logcheck, How to do it…, How it works…
  • used, for managing log files / Viewing and managing log files using Logcheck, How to do it…, How it works…
  • about / Viewing and managing log files using Logcheck
• log files
  • viewing, Logcheck used / Viewing and managing log files using Logcheck, How to do it…, How it works…
  • managing, Logcheck used / Viewing and managing log files using Logcheck, How to do it…, How it works…
• login authentication
  • PAM, using / Login authentication using a USB device and PAM, How to do it…, There's more...
  • USB device, using / Login authentication using a USB device and PAM, How to do it…, How it works..., There's more...
• login capabilities, of users
  • limiting / Limiting the login capabilities of users, How to do it..., How it works...
• Logs
  • monitoring, with MultiTail / Monitoring logs using MultiTail, How to do it…, How it works…
• ls command
  • used, for viewing file details / Viewing file and directory details using the ls command, How to do it…, How it works…
  • used, for viewing directory details / Viewing file and directory details using the ls command, How to do it…, How it works…
• lsof command
  • using / Using system tools – lsof, How to do it…, How it works
  • about / Using system tools – lsof
• Lubuntu / DEFT – Digital Evidence and Forensic Toolkit
• Lynis
  • using / Using Lynis, How to do it…, How it works
  • about / Using Lynis
  • download link / Getting ready

M

• Metasploitable
  • about / Gaining a root on a vulnerable Linux system
  • reference link / Getting ready
• move (mv) command
  • used, for file handling / File handling using the mv command (moving and renaming), How it works…, There's more…
• MultiTail
  • used, for monitoring Logs / Monitoring logs using MultiTail, Getting ready, How to do it…, How it works…

N

• Netcat
  • URL / There's more…
• Netconsole
  • used, for console configuration for debugging / Configuring a console for debugging using Netconsole, Getting ready, How to do it…, There's more…
• network
  • monitoring, Nmap used / Monitoring a network using Nmap, How to do it…, How it works…
• Network Security Toolkit (NST)
  • about / NST – Network Security Toolkit
  • reference link / Getting ready
  • using / How to do it..., How it works...
• Nmap
  • used, for scanning hosts / Scanning hosts with Nmap, How to do it…, How it works…
  • installation link / Getting ready
  • reference link / See also
  • used, for monitoring network / Monitoring a network using Nmap, How to do it…, How it works…

O

• Octal representation / There's more...
• OpenSSH / How to do it…
• OpenSSL Server
  • about / OpenSSL Server
  • using / Getting Ready, How to do it..., How it works...

P

• PAM
  • used, for login authentication / Login authentication using a USB device and PAM, How to do it…, How it works..., There's more...
• password protection
  • configuring / Configuring password protection, How to do it…
  • creation policy / How to do it…
  • policy, steps / How to do it…
  • change policy / How to do it…
• patches
  • applying, on Linux system / Applying patches on the Linux systems, How to do it..., How it works...
• patch management system
  • about / The patch management system, How to do it…, How it works…
• pfSense
  • about / pfSense
  • download link / Getting ready
  • using / How to do it..., How it works...
• Port Sentry
  • about / PortSentry
  • usage, implementing / Getting Ready, How to do it?, How it works...

R

• remote access
  • restricting, with key-based authentication into SSH / Restricting remote access with key-based login into SSH, How to do it...
• remote server/host access
  • gaining, SSH used / Getting ready, How to do it…, How it works…
• root account / Getting Ready

S

• Secure File Transfer Protocol (SFTP) / How it works...
• Secure Sockets Layer(SSL) / OpenSSL Server
• security controls
  • about / Security controls
• security issues, Shellshock
  • exploiting, through SSH / Shellshock's security issues, How to do it…, How it works…
• security policy, Linux
  • about / The security policy of Linux
  • developing / Developing a security policy
• server security
  • configuring / Configuring server security, How to do it…, How it works…
  • general policy / How to do it…
  • configuration policy / How to do it…
  • monitoring policy / How to do it…
• Set Group ID up on execution (SGID) / Linux sXID
• Set owner User ID (SUID) / Linux sXID
• Shorewall
  • about / Shorewall
  • using / Getting ready, How to do it...
  • working / How it works...
• Software Development Cycle (SDC) / Testing and debugging a kernel
• spoofed addresses
  • blocking / Blocking spoofed addresses, How to do it..., How it works...
• Squid proxy
  • about / Using Squid proxy
  • using / Using Squid proxy, Getting Ready
  • installing / How to do it...
  • configuring / How to do it...
  • working / How it works...
• SSH
  • used, for remote server/host access / Remote server/host access using SSH, How to do it…
• SSH root login
  • enabling / Disabling or enabling SSH root login, Getting ready, How to do it…, How it works…
  • disabling / Disabling or enabling SSH root login, How to do it…, There's more…
• stat command
  • using / Using system tools – stat, How to do it…, How it works
• strace
  • about / Using system tools – strace
  • using / Getting ready, How to do it…, How it works
• sudo access
  • configuring / Making use of sudoers – configuring sudo access, How to do it…, How it works…
• sudoers
  • using / Making use of sudoers – configuring sudo access, How to do it…
  • vulnerability assessment / Vulnerability assessment
• sXid
  • about / Linux sXID
  • using / Getting Ready, How to do it...
• system monitoring
  • glance, using / Using glances for system monitoring, How to do it…
• system tools
  • Whowatch, using / Using system tools – Whowatch
  • stat command, using / Using system tools – stat
  • strace / Using system tools – strace
  • Lynis / Using Lynis

T

• TCP/IP network
  • managing / Managing the TCP/IP network, How to do it..., How it works...
• TCP wrapper
  • configuring / Configuring and using the TCP Wrapper, How to do it?, How it works...
  • using / Configuring and using the TCP Wrapper, Getting Ready, How to do it?, How it works...
• Time Exceeded ICMP packets / How to do it..., How it works...
• Transport Layer Security(TLS) / OpenSSL Server
• Tripwire
  • about / Tripwire
  • installing / How to do it...
  • configuring / How to do it...

U

• Ubuntu
  • LDAP server, installing / Install and configure a basic LDAP server on Ubuntu, How to do it…, How it works…
  • LDAP server, configuring / Install and configure a basic LDAP server on Ubuntu, How to do it…, How it works…
  • installation link / Getting ready
  • used, for setting up Kerberos server / Setting up a Kerberos server with Ubuntu, How to do it...
• UbuntuHashes
  • reference link / How to do it…
• USB boot media
  • creating / Creating a USB boot media, How it works…
• USB device
  • used, for login authentication / Login authentication using a USB device and PAM, How to do it…, How it works..., There's more...
• user activity
  • monitoring, acct used / Monitoring user activity using acct, Getting started, How to do it?, How it works...
• user authorization controls
  • defining / Defining user authorization controls, How to do it..., How it works...
• users
  • authentication / User authentication and logging, How to do it..., How it works...
  • logging / User authentication and logging, How to do it..., How it works...
  • login capabilities, limiting / Limiting the login capabilities of users, How to do it..., How it works...

V

• vulnerable Linux system
  • root, gaining / Gaining a root on a vulnerable Linux system, How to do it…, How it works
  • common exploits and attacks / There's more…
  • null passwords / Null or default passwords
  • default passwords / Null or default passwords
  • IP spoofing / IP spoofing
  • eavesdropping / Eavesdropping

W

• Whowatch
  • about / Using system tools – Whowatch
  • using / Using system tools – Whowatch, How to do it…, How it works