Managing Linux & Windows Linux Administration tools, Linux Terminal shell utilizing Vim or Nano editor: Accessing Linux servers as either Server administrators or Regular users is always a security concern but also presents questions related to directory management. Under the assumption that regular users have good intentions it presents that idea familiarity to Linux distro directory structure accessing and management. Note: Regular user accounts are restricted from performing sensitive tasks, such as viewing the contents of the /root directory. This prevents the accidental use of commands with massive consequences. It also makes it more difficult for intruders to compromise a system. However, sometimes you need to run an administrative command. Sudo or Super User Do grants you privileges to run sensitive tasks. Lab specifications: Identify differences between Root SU and Regular User, elevate privileges for current logged in user, create users, add new server administrators to SU Group, Youve been charged with adding new users to the system 3 New Linux Server Administrators Perform any and all Server maintenance and monitoring o Verify Server Administrators below to Sudo Groups o Verify Sudo Access - Take Screenshot! 3 New Regular Users access their own directory content, also utilize applications available to them Verify the Number of accounts on server! - Take Screenshot! o Getent passwd | ????? Update Linux DNS Resolver configuration file Hint: nano /etc/???? Remember to Permanently Overwrite NetworkManager.conf file or change NetworkManager.conf file in order to Save your New DNS entries Open-SSH Available for Server Administrators o Open Settings, select Apps, then select Optional Features. Scan the list to see if the OpenSSH Client is already installed. If not, at the top of the page, select Add a feature, then: Find OpenSSH Client, then select Install o Verify SSH Service is running on all Servers & Dmacc computer if possible! Open a SSH session From Dmacc computer user either/both Powershell SSH to remote administer your Linux Server.. Take Screenshot of connection and all Commands outputs! o Verify a particular user above exist o Add 1 Regular user to the SU Group giving them Server Administrative access Hint - sudo usermod aG ????? o Verify the SU access Hint: groups ????? o Verify number of Linux user accounts o Exit session Logout :) Linux Web-Based Admin tools: Webadmin -curl -o setup-repos.sh https://raw.get.githubusercontent.com/webmin/webmin/master/setup-repos.sh sh setup-repos.sh Windows Administration tools, Command Prompt, Powershell, OpenSSH, & Windows Admin Center. Command prompt: o Change directory to the Servers root C:\ directory o Make new directory e.g o review current directory content o Change Directory to the new Directory o Use the echo cmd to create a new Text file in Your new directory e.g (Travis.txt) Edit text file - Make entry I am gaining server administrative skills! enter down a couple of rows Make entry Server + course is providing me with all the tools necessary to broaden my server administrative SKILLS! - Save File! o Change Directory back to root! C:\ o Make 2nd new directory on the root C:\ View the contents of the directory - Take Screenshot o use the robocopy tool with the move switch! in order to move first New directories files to the 2nd New directory - Take Screenshot of Commands o Using the Type Cmd to see all content in txt o Using the Find Cmd to locate all number lines within the .txt file that contain the word skills - Take Screenshot of Command output! Powershell Administration: 1. From Desktop Experience Server add your other 2 servers Server Core and Debian to the trusted host list. Remember your still on the Workgroup Network NOT A Domain! In other words there is NO DNS Resolution taken place! Hint: Server Name or IP??? 2. Enable powershell WinRm 3. Set Firewall to allow incoming Connection 4. List Server services with formatting list 5. List Server Processes with formatting list 6. List FileShares 7. List Disks 8. List Partitions Windows Admin Center Download Windows Admin Center, https://www.microsoft.com/enus/evalcenter/download-windows-admin-center Notice: See Installation Scenarios at https://aka.ms/windowsadmincenter-install 1. Your Windows Desktop Experience and Server Core a. Review Connections.