Linux Task One

Part One

#pvcreate /dev/sda2
#gvcreate -s 16M vg1 /dev/sda2
#lvcreate -l 50 -n lv1 vg1
#mkfs.ext4 /dev/vg1/lv1
#mkdir -p /mnt/data
#mount /dev/vg1/lv1 /mnt/data
#echo "/dev/sda2 /mnt/data ext4 defaults 0 1" >> /etc/fstab

Part Two

#useradd --uid 601 --shell /sbin/nologin --password redhat user1
#groupadd TraningGroup
#usermod -aG TraningGroup user1
#useradd user2 --password redhat
#useradd user3 --password redhat
#groupadd admin
#usermod -aG admin user2
#usermod -aG admin user3
#usermod -aG admin user3

Part Three

#ssh-keygen -t rsa -b 4096
#ssh-copy-id [email protected]
#ssh [email protected]

Part Four

#cp /etc/fstab /var/tmp/admin
#setfacl -m u:user1:rwx /var/tmp/admin
#setfacl -m u:user2:--- /var/tmp/admin

Part Five

# vim /etc/selinux/config
SELINUX=enforcing
#

Part Six

#!/bin/bash
sleep 600 &
p_id=`pgrep sleep`
kill $p_id

Part Seven

#sudo yum install tmux -y
#sudo yum install httpd -y
#sudo yum install mysql -y
#mkdir /var/zabbix
#wget https://repo.zabbix.com/zabbix/5.4/rhel/7/x86_64/zabbix-release-5.4-1.el7.noarch.rpm -P /var/zabbix
#createrepo /var/zabbix
#vim /etc/yum.repos.d/zabbix.repo
[zabbix]
name=Zabbix Local Repository
baseurl=file:///var/zabbix/
enabled=1
gpgcheck=0

Part Eight

#sudo firewall-cmd --add-service={http,https} --permanent
#sudo firewall-cmd --zone=public --add-rich-rule="rule family='ipv4' source address='192.168.1.155' port port=22 protocol=tcp reject"
#sudo firewall-cmd --reload

Part Nine

#crontab -e
30 1 * * * w | awk '{ print $3 $1 }' > log.txt

Part Ten

#sudo yum install mariadb
#sudo iptables -A INPUT -p tcp --dport mysql -j ACCEPT
#mysql -u root -p
#create database studentdb;
#grant all privileges on studentdb.* to 'user'@'192.168.204.193';
#flush privileges;
#mysql -h 192.168.204.119 -u user
#use studentdb;
#create table student ( 
	first_name varchar(50) NOT NULL,
	last_name varchar(50) NOT NULL,
	program_enrolled varchar(50) NOT NULL
  );
#insert into student (first_name, last_name, program_enrolled) values ('saleem', 'azaar', 'cse'), ('majid', 'idk', 'ee');
#select * from student;
MariaDB [studentdb]> SELECT * FROM STUDENT;
+-----------+------------+------------------+
| first_name | second_name | program_enrolled |
+-----------+------------+------------------+
| saleem    | azaar      | cse              |
| majid     | idk        | ee               |
+-----------+------------+------------------+
2 rows in set (0.01 sec)
#exit
bye :)