RedHat Related Exams
RH202 Exam
Add a job on Cron schedule to display Hello World on every two Seconds in terminal 8.
Answer and Explanation:
1.cat >schedule
*/2 * * * * /bin/echo “Hello World” >/dev/tty8
Cron helps to schedule on recurring events. Pattern of Cron is:
MinuteHourDay of MonthMonth Day of WeekCommands
0-590-231-311-120-7 where 0 and 7 means Sunday.
Note * means every. To execute the command on every two minutes */2.
To add the scheduled file on cron job: crontab filename
To List the Cron Shedule: crontab –l
To Edit the Schedule: crontab –e
To Remove the Schedule: crontab –r
Create the user named user1, user2, user3
Answer and Explanation:
We create the user using useradd command and we change the password of user using passwd command. If you want to set the blank password use: passwd -d username.
There are Mail servers, Web Servers, DNS Servers and Log Server. Log Server is already configured. You should configure the mail server, web server and dns server to send the logs to log server.
Answer and Explanation:
According to question, log server is already configured. We have to configure the mail, web and dns server for log redirection.
In mail, web and dns server:
1.vi /etc/syslog.conf
mail.*@logserveraddress
2.service syslog restart
mail is the facility and * means the priority. It sends logs of mail services into log server.