Security
I am a hacker, I know the default port number to remotely log access a system using putty or mobaxterm. It is ...
what is 22
provides information about commands
what is man
True or false. A superuser can edit the cronjob of all users of the system.
What is Not true. Only /root
Type of account that can do the following: Installing and updating system
Managing user accounts and permissions
Configuring configuration files
privildege account
when trying to read a file on /var/www/html we get a "permision denied" or "403 Forbidden". How do i make the file redeable as a non user of the system.
What is chmod 644
I guard the gates of your RHEL8 system, inspecting incoming and outgoing traffic for suspicious activity
what is firewalld
use this command to unlock every single account that has been locked
what is #failock --reset
this is used by the superuser to see all cronjobs created by any user of the system
what is /var/spool/cron
my group number is always 10 who am I?
What is Wheel group
a system log file that stores infromation and events related to the overall system activity. It acts as a central repository for important information about the system's operation
What is /var/log/messages
this is the first line of defence before the firewall
what is SE Linux
we use this flag when ignore case sensitivity on the command line
what is -i
interprete the following cronjob:
0,30 21-23 * * FRI
What is every 30 minutes from 9 PM to 11 PM on Fridays
5 components of each user account
What are -
1. username and ID
2.password
3.groupname and group ID
4. home directory
5.shell
this log contains all failed authentication attempts, unauthorized events, information about security service status, configuration changes, and potential security incidents
What is /var/log/secure
An initializing process that can be interuped in order to change /root password
What is bootstrapping
Single command used to know what's wrong on the system
What is pwck (also known as powercheck)
I am creating a job to run at 10:00 am using the "at command". After writing the instructions, how do close out the job on my keyboard?
What is CTRL+D
Who am I: blueberry:x:48:48:blueberry:/usr/share/httpd:/sbin/nologin
What is service account
common reasons for getting this error are: network issues, incorrection details like wrong port number or IP address, server downtime
What is connection not found
I am system engineer hired to generate self-signed certs for an application. When generating the key which flag will I use in the command below to add an extra layer of security:
openssl genrsa -out achu.key 2048
What is -des3
There are two manins to executive a bash script. This method is preferred because for security purposes
What is bash script.sh
Interprete the following cronjob: 59 23 * * sat rsync -Axy upudate rsyncadmin@10.1.10.5:/home/rsyncadmin
What is - every sat a 11:59p synchronize the contents of the /home/rsyncadmin directory on the remote server (10.1.10.5) with the corresponding local directory (likely also /home/rsyncadmin on your local machine) using the preserving all options and assume "yes" to any prompts during the transfer and might be named for "updating" the destination with changes from the source.
Under no circumstances should this file that has information on priviledge accounds be edited using the vi tool
What is /etc/sudoers. If needed use visudoer
How to triage this error "command not found"
1. check to see if spelling is correct.
2. check location of command using `which "command"`
3. install appropriate package (research)