#Learn Linux PAM Administration | Explore Tumblr posts and blogs

pparn · 3 years ago

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Learn Linux from scratch, and then learn how to get jobs in the field

Linux is 30 years old now, but is still so cool it went to Mars. So if you've always wished you could work in tech but didn't know where to start, you should definitely check out The 2022 Complete Linux Programming Certification Bundle because it lays out an entire career path from complete beginner to security expert. Best of all, there are even courses to help you actually get a job once you have the skills.

Total novices can start with "Linux Crash Course for Beginners (2022)" to learn how Linux works, how to use the command line efficiently, the basic Linux system administration and more. Then you can move right into networking in "Linux Network Administration" and become a Linux power user.

After you've got the fundamentals down, or if you already have Linux basics and want to move into security, "Guide to Security for Linux Systems" can teach you security measures for the Linux environment. This course can also help you pass the Redhat Certified Engineer exam (EX300), which should really make your resume stand out.

Courses on Pluggable Authentication Modules are rare, so "Linux PAM Administration" is truly valuable. It explains the importance of PAM, shows you live examples, demonstrates how to configure it and more. ซื้อฟรีสปิน

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adult-social-networks · 5 years ago

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Linux Diagnostics And Troubleshooting

Linux Diagnostics And Troubleshooting. This course is aimed at senior system administrators who wish to learn more about troubleshooting.

Overview

The Red Hat Enterprise Linux Diagnostics and Troubleshooting course (RH342) provides system administrators with the tools and techniques they need to successfully diagnose, and fix, a variety of potential issues. Students will work through hands-on problems in various subsystems to diagnose and fix common issues.

Audience

The Red Hat Enterprise Linux Diagnostics and Troubleshooting course is aimed at senior system administrators who wish to learn more about troubleshooting.

Prerequisites

Have earned a Red Hat Certified System Administrator (RHCSA) or have similar experienceIt is recommend that students have earned a Red Hat Certified Engineer (RHCE) or have similar experience Skill level: Intermediate Level Students: 398 Languages: EnglishCaptions: No Lectures: 81 Video: 10 hours

Introduction

What is troubleshooting?Troubleshooting a login issueCollecting InformationSystem JournalTroubleshoot a web server issue using the log filesUsing Red Hat ResourcesCollecting Information with SOSREPORTPractice Lab SessionTroubleshoot a FTP Connectivity Issue

Monitoring Systems

System Monitoring with CockpitPerformance Co-Pilot or pcpCentralized log server using rsyslogPractice Lab SessionIntrusion detection software to monitor changesAdvanced Intrusion Detection Environment (AIDE)Practice Lab SessionSystem Auditing with auditd

Identifying Hardware Issues

Identify various harwdare and their problemsHardware Error Reporting using mcelog and rasdaemonMemory Testing using memtest86+ packageManging Kernel ModulesLoading and unloading modulesManaging module optionsTroubleshooting to disable MSI-X interrupt handling in the driver

Troubleshooting Storage Issues

Overview of Linux Storage StackVirtual File SystemFilesystems & Device ManagerDevice Mapper MultipathRecovering from File System CorruptionChecking & Repairing ext3/ext4 fs using e2fsckChecking & Repairing xfs fs using xfs_repairRecovering LVM IssuesPractice Lab Session - using vgcfgrestoreMigrating a Volume Group from one system to anotherRecovering Metadata in LVMPractice Lab SessionConfiguration of Iscsi target & InitiatorPractice Lab Session on iscsi target & initiator - 1Practice Lab Session on iscsi target & initiator - 2 Troubleshooting RPM Issues Resolve package management dependency issuesIdentify & fix dependency issueRecover a corrupted RPM DatabaseWorking with transaction history using Yum commandReverting & repeating transaction using yum commandPractice Lab Session Troubleshooting a Network Issues Check Network ConnectivityScanning Network Ports using nmapCommunicating with a remote service using nc commandMonitoring Network traffic using iptraf-ngTroubleshooting a network issue (One network interface is not working properly)Troubleshooting tips related with device names of ethernet interfaceDisable consistent network device namingOverview NetworkManagerPractice Lab SessionCapturing Packets with tcpdumpPractice Lab Sessions Troubleshooting a Boot Issues Linux Boot processBooting of RHEL 7 with systemdOverview of Grub2Grub2 featuresBooting into Grub MenuProtect Grub by appying a passwordLab on Basic System Recovery (Initramfs file missing/Corrupted)Lab on Basic System Recovery (Grub related issues like grub is missing)Lab on Basic System Recovery (Master Boot Record missing/corrupted)Rescue Modue in RHEL 7Practice Lab SessionReset the root passwd using installation diskReset the root passwd using rd.break Troubleshooting a Security Issues Troubleshooting a SELinux IssueChanging SELinux contexttroubleshooting ftp connectivity issue using booleansSELinux Audit Logs & TroubleshootingOverview of PAM SecurityConcepts of PAMPAM Modules & ConfigurationsPAM Module GroupsControl Flags in PAMPAM Moduleslast lecture What you’ll learn Linux Diagnostics And TroubleshootingTo fix common issues on a Red Hat Enterprise Linux machine, using tools provided by the distribution.What is troubleshooting?Troubleshooting a login issueTroubleshoot a web server issue using the log filesTroubleshoot a FTP Connectivity IssueSystem Monitoring with CockpitCentralized log server using rsyslogAdvanced Intrusion Detection Environment (AIDE)System Auditing with auditdIdentify various harwdare and their problemsHardware Error Reporting using mcelog and rasdaemonManging Kernel ModulesTroubleshooting to disable MSI-X interrupt handling in the driverTroubleshooting Storage IssuesOverview about Filesystems, Device Manager & Device Mapper MultipathRecovering from File System CorruptionMigrating a Volume Group from one system to anotherConfiguration of Iscsi target & InitiatorTroubleshooting RPM IssuesRecover a corrupted RPM DatabaseWorking with transaction history using Yum commandTroubleshooting a Network IssuesScanning Network Ports using nmapnc & iptraf-ng commandsTroubleshooting a network issue (One network interface is not working properly)Troubleshooting a Boot IssuesLab on Basic System RecoveryReset the root passwd using installation disk or rd breakTroubleshooting a Security IssuesTroubleshooting a SELinux IssueSELinux Audit Logs & TroubleshootingOverview of PAM Security & Concepts of PAMVarious practice lab session Are there any course requirements or prerequisites? PC or Laptop with internet ConnectionA RHCSA/RHCE certification, or equivalent knowledge is required to successfully sit this course. Who this course is for: Linux Diagnostics and Troubleshooting course is aimed at senior system administrators who wish to learn more about troubleshooting. Read the full article

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thelinuxtimes-blog · 6 years ago

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New User Creation / Add new user

Create a new user in Linux

Table of Contents: Adding new user Changing Password User Login Switch User Granting Admin Privileges User Aliases Reloading Aliases Testing Conclusion >Adding new user:Creating new user with the name "testuser" shown as below. # useradd testuser

> Changing Password:Creating password for newly created user ( ie., testuser )# passwd testuserChanging password for user testuser. New UNIX password: # set passwordRetype new UNIX password: # confirmpasswd: all authentication tokens updated successfully.

> User Login:Login with newly created user ( ie., testuser ). localhost login: testuser # Enter user-name .password: # Enter testuser password ( Password will not be display ) Then press Enter.

> Switch user:We can switch between users by using 'su' command. the below example is switch to root user.su - l $ su -l root # switch user to root , if we did not type any username then it will take root user by default . ie., we can login to root by using 'su - ' as well.Password: # Enter root password# # we have logged into root user. the '#' indicates that we are now using root user.

>Granting Administrative Privileges:Assigning administrative privileges to a user to execute root commands without switching to root user. ( ie., testuser ) # usermod -G wheel testuserEdit '/etc/pam.d/su' file. the file looks like as below.# vi /etc/pam.d/su#%PAM-1.0 auth sufficient pam_rootok.so # Uncomment the following line to implicitly trust users in the "wheel" group. #auth sufficient pam_wheel.so trust use_uid # Uncomment the following line to require a user to be in the "wheel" group. #auth required pam_wheel.so use_uid auth substack system-auth auth include postlogin account sufficient pam_succeed_if.so uid = 0 use_uid quiet account include system-auth password include system-auth session include system-auth session include postlogin session optional pam_xauth.so

Un Comment the below lines from the file."auth sufficient pam_wheel.so trust use_uid" "auth required pam_wheel.so use_uid"The file will be looks like below.# vi /etc/pam.d/su#%PAM-1.0 auth sufficient pam_rootok.so # Uncomment the following line to implicitly trust users in the "wheel" group. auth sufficient pam_wheel.so trust use_uid # Uncomment the following line to require a user to be in the "wheel" group. auth required pam_wheel.so use_uid auth substack system-auth auth include postlogin account sufficient pam_succeed_if.so uid = 0 use_uid quiet account include system-auth password include system-auth session include system-auth session include postlogin session optional pam_xauth.so

> User aliases: Creating an alias for the root user and forwarding all root user emails another user. ( ie., testuser ) # vi /etc/aliasesuncomment the last line and enter the username as shown below.root: testuser

> Reloading aliases: # newaliases

> Testing:Try to login to root user from testuser. in general, it should ask for the password. but testuser having root privileges so that we can login without entering any password like a root user.$ su -l root #

> Conclusion:We have learned user creation, password creation, User login, Switching user using 'su' command, Assigning administrative privileges to a normal user in this article and tested successfully.Any questions please make a comment.Thankyou Read the full article

#Adduser #CreateUser #Creation #Linux #LinuxUser #NewUser

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angeeroachus · 7 years ago

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[Udemy] The Complete Ubuntu Linux Server Administration Course

Master the Ubuntu Linux Server from scratch from Beginners to Expert On Windows / Mac os / Linux ! What Will I Learn? Learn to setup your own Ubuntu Linux Server ! Learn to Execute Basic Linux commands on Ubuntu Server . Learn How to Perform Users and group Management in Ubuntu Server . Learn How to perform FILE MANAGEMENT in Ubuntu Server . Learn How to perform DISK MANAGEMENT in Ubuntu Server . Understanding & Implementing RAID Array . Learn to play with PAM Modules . Learn How to perform Network Management in Ubuntu Server . Learn to Setup own "Web server " in Ubuntu Server . Learn to Setup own "DNS Server " in Ubuntu Server . Securing & Hardening Ubuntu Server . Learn to Plan Disaster Recovery & Management . Requirements Learning Desire . A Computer with Windows / Mac os / Linux System ! Description ? Welcome to " The Complete Ubuntu Linux Server Administration Course ! " ? Master the Latest & Fastest Growing Ubuntu Linux Server and Become a Cash Earning System Administrator . Linux is an Operating system which was developed in early 1990s by Linus Torvald at University of Helsinki in Finland . Then it was further joined & modified by group of thousands of computer geeks all around the world .Currently there are lots of Linux Distributions are available in the market like Redhat , Centos , Debian etc . But now Ubuntu server is becoming more popular in these day's because it is easy to use & free . Following are the main sections of the course which contains different tutorials in detail. This course consists of 13 different sections and over 9.5 Hours of HD videos in time lenght . MAIN SECTIONS OF THE COURSE : - ? Introduction . ? Basics of Linux commands & File Structure . ? File Management . ? Process Management . ? User & Group Management . ? Disk Management . ? Network Management . ? Setting up your own Web Server . ? Setting up your own Mail Server . ? Setting up your own DNS server . ? Securing your Server . ? Miscellaneous useful stuff . Who is the target audience? School / College student . Linux Hobbyist . IT Professionals . Anybody who wants to become a Linux System Administrator . Anybody who wants to become a Linux Network Administrator . Anybody who wants to learn How to create own File / Web / Mail Servers . source https://ttorial.com/complete-ubuntu-linux-server-administration-course

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ianasennus · 7 years ago

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[Udemy] The Complete Ubuntu Linux Server Administration Course

Master the Ubuntu Linux Server from scratch from Beginners to Expert On Windows / Mac os / Linux ! What Will I Learn? Learn to setup your own Ubuntu Linux Server ! Learn to Execute Basic Linux commands on Ubuntu Server . Learn How to Perform Users and group Management in Ubuntu Server . Learn How to perform FILE MANAGEMENT in Ubuntu Server . Learn How to perform DISK MANAGEMENT in Ubuntu Server . Understanding & Implementing RAID Array . Learn to play with PAM Modules . Learn How to perform Network Management in Ubuntu Server . Learn to Setup own “Web server ” in Ubuntu Server . Learn to Setup own “DNS Server ” in Ubuntu Server . Securing & Hardening Ubuntu Server . Learn to Plan Disaster Recovery & Management . Requirements Learning Desire . A Computer with Windows / Mac os / Linux System ! Description ? Welcome to “ The Complete Ubuntu Linux Server Administration Course ! " ? Master the Latest & Fastest Growing Ubuntu Linux Server and Become a Cash Earning System Administrator . Linux is an Operating system which was developed in early 1990s by Linus Torvald at University of Helsinki in Finland . Then it was further joined & modified by group of thousands of computer geeks all around the world .Currently there are lots of Linux Distributions are available in the market like Redhat , Centos , Debian etc . But now Ubuntu server is becoming more popular in these day’s because it is easy to use & free . Following are the main sections of the course which contains different tutorials in detail. This course consists of 13 different sections and over 9.5 Hours of HD videos in time lenght . MAIN SECTIONS OF THE COURSE : - ? Introduction . ? Basics of Linux commands & File Structure . ? File Management . ? Process Management . ? User & Group Management . ? Disk Management . ? Network Management . ? Setting up your own Web Server . ? Setting up your own Mail Server . ? Setting up your own DNS server . ? Securing your Server . ? Miscellaneous useful stuff . Who is the target audience? School / College student . Linux Hobbyist . IT Professionals . Anybody who wants to become a Linux System Administrator . Anybody who wants to become a Linux Network Administrator . Anybody who wants to learn How to create own File / Web / Mail Servers . source https://ttorial.com/complete-ubuntu-linux-server-administration-course

source https://ttorialcom.tumblr.com/post/175788825928

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ttorialcom · 7 years ago

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[Udemy] The Complete Ubuntu Linux Server Administration Course

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easyshiksha · 4 years ago

Link

This Linux PAM Administration course will introduce the PAM (Pluggable Authentication Modules) in Linux. We are going to reassess the background and inner workings of PAM and so additionally show examples on a live system on a way to piece PAM.

#Linux PAM Administration #Learn Linux PAM Administration #online courses

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adult-social-networks · 5 years ago

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Linux Diagnostics And Troubleshooting

Linux Diagnostics And Troubleshooting. This course is aimed at senior system administrators who wish to learn more about troubleshooting.

Overview

Audience

The Red Hat Enterprise Linux Diagnostics and Troubleshooting course is aimed at senior system administrators who wish to learn more about troubleshooting.

Prerequisites

Introduction

Monitoring Systems

Identifying Hardware Issues

Troubleshooting Storage Issues

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