Red Hat Enterprise Linux (RHEL) 6 and RHEL 7 use different service management, networking, firewall, hostname, and system configuration commands.<\/p>\n\n\n\n
This guide provides a practical comparison of commonly used commands in Red Hat 6 and Red Hat 7<\/strong>. It can be useful when managing or troubleshooting servers running different RHEL versions.<\/p>\n\n\n\n Before using the commands in this guide:<\/p>\n\n\n\n Start a service:<\/p>\n\n\n\n Stop a service:<\/p>\n\n\n\n Start a service:<\/p>\n\n\n\n Stop a service:<\/p>\n\n\n\n Enable a service at boot:<\/p>\n\n\n\n Disable a service at boot:<\/p>\n\n\n\n Enable a service at boot:<\/p>\n\n\n\n Disable a service at boot:<\/p>\n\n\n\n After creating or modifying a systemd service file, reload the systemd configuration:<\/p>\n\n\n\n Edit Change the appropriate run-level configuration.<\/p>\n\n\n\n Use:<\/p>\n\n\n\n Replace To view the available target units:<\/p>\n\n\n\n The GRUB configuration file is:<\/p>\n\n\n\n The GRUB configuration file is:<\/p>\n\n\n\n Red Hat 6 commonly uses To view the current rules:<\/p>\n\n\n\n Red Hat 7 commonly uses To view the firewall configuration:<\/p>\n\n\n\n Open the network configuration file:<\/p>\n\n\n\n Add or modify the hostname:<\/p>\n\n\n\n Restart the network service:<\/p>\n\n\n\n To check the current hostname:<\/p>\n\n\n\n To set a new hostname:<\/p>\n\n\n\n Red Hat 6 and Red Hat 7 differ significantly in the way system services, networking, firewall rules, hostnames, and boot configuration are managed.<\/p>\n\n\n\n The most important change is the transition from the traditional SysV init and service commands in RHEL 6<\/strong> to systemd and The major difference is service management. Red Hat 6 uses traditional SysV tools such as Use:<\/p>\n\n\n\n Use:<\/p>\n\n\n\n Use:<\/p>\n\n\n\n Use:<\/p>\n\n\n\n Learn how to install and configure Apache, PHP, and MySQL on a Red Hat 7 server.<\/p>\n\n\n\nPrerequisites<\/h2>\n\n\n\n
\n
Implementation<\/h2>\n\n\n\n
List All Services<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
chkconfig --list<\/pre>\n\n\n\n
ls \/etc\/init.d<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl -at service<\/pre>\n\n\n\n
ls \/etc\/systemd\/system\/*.service<\/pre>\n\n\n\n
Start and Stop a Service<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
service name start<\/pre>\n\n\n\n
service name stop<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl start name.service<\/pre>\n\n\n\n
systemctl stop name.service<\/pre>\n\n\n\n
Enable and Disable a Service<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
chkconfig name on<\/pre>\n\n\n\n
chkconfig name off<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl enable name.service<\/pre>\n\n\n\n
systemctl disable name.service<\/pre>\n\n\n\n
Verify Service Status<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
service name status<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl status name.service<\/pre>\n\n\n\n
Check Whether a Service Is Enabled<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
chkconfig name<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl is-enabled name<\/pre>\n\n\n\n
Create or Reload a New Service<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
chkconfig --add<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl daemon-reload<\/pre>\n\n\n\n
View the Run Level<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
runlevel<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl get-default<\/pre>\n\n\n\n
Shutdown the System<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
shutdown<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl shutdown<\/pre>\n\n\n\n
Power Off the System<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
poweroff<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl poweroff<\/pre>\n\n\n\n
Reboot the Machine<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
reboot<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl reboot<\/pre>\n\n\n\n
Get the Run Level<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
cat \/etc\/inittab<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl get-default<\/pre>\n\n\n\n
Set the Run Level<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
\/etc\/inittab<\/code>:<\/p>\n\n\n\nvi \/etc\/inittab<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
systemctl set-default name.target<\/pre>\n\n\n\n
name.target<\/code> with the required target.<\/p>\n\n\n\nsystemctl list-units --type target --all<\/pre>\n\n\n\n
GRUB Loader Configuration<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
\/boot\/grub\/grub.conf<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
\/etc\/default\/grub<\/pre>\n\n\n\n
Configure the Firewall<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
iptables<\/code>.<\/p>\n\n\n\niptables -nL<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
firewalld<\/code>.<\/p>\n\n\n\nfirewall-cmd --list-all<\/pre>\n\n\n\n
Set the Hostname<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
vi \/etc\/sysconfig\/network<\/pre>\n\n\n\n
HOSTNAME=hostname.domain.tld<\/pre>\n\n\n\n
service network restart<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
hostnamectl status<\/pre>\n\n\n\n
hostnamectl set-hostname hostname.domain.tld<\/pre>\n\n\n\n
View Network Interfaces<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
ifconfig<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
ip addr<\/pre>\n\n\n\n
View Ports and Network Sockets<\/h3>\n\n\n\n
Red Hat 6<\/h4>\n\n\n\n
netstat -plan<\/pre>\n\n\n\n
Red Hat 7<\/h4>\n\n\n\n
ss -tlp<\/pre>\n\n\n\n
Quick Command Comparison<\/h2>\n\n\n\n
Task<\/th> Red Hat 6<\/th> Red Hat 7<\/th><\/tr><\/thead> List services<\/td> chkconfig --list<\/code><\/td>systemctl -at service<\/code><\/td><\/tr>Start service<\/td> service name start<\/code><\/td>systemctl start name.service<\/code><\/td><\/tr>Stop service<\/td> service name stop<\/code><\/td>systemctl stop name.service<\/code><\/td><\/tr>Enable service<\/td> chkconfig name on<\/code><\/td>systemctl enable name.service<\/code><\/td><\/tr>Disable service<\/td> chkconfig name off<\/code><\/td>systemctl disable name.service<\/code><\/td><\/tr>Service status<\/td> service name status<\/code><\/td>systemctl status name.service<\/code><\/td><\/tr>Check enabled<\/td> chkconfig name<\/code><\/td>systemctl is-enabled name<\/code><\/td><\/tr>Reload service configuration<\/td> chkconfig --add<\/code><\/td>systemctl daemon-reload<\/code><\/td><\/tr>Check run level<\/td> runlevel<\/code><\/td>systemctl get-default<\/code><\/td><\/tr>Power off<\/td> poweroff<\/code><\/td>systemctl poweroff<\/code><\/td><\/tr>Reboot<\/td> reboot<\/code><\/td>systemctl reboot<\/code><\/td><\/tr>Firewall<\/td> iptables<\/code><\/td>firewalld<\/code><\/td><\/tr>Hostname<\/td> \/etc\/sysconfig\/network<\/code><\/td>hostnamectl<\/code><\/td><\/tr>Network interfaces<\/td> ifconfig<\/code><\/td>ip addr<\/code><\/td><\/tr>Network sockets<\/td> netstat -plan<\/code><\/td>ss -tlp<\/code><\/td><\/tr>GRUB configuration<\/td> \/boot\/grub\/grub.conf<\/code><\/td>\/etc\/default\/grub<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nConclusion<\/h2>\n\n\n\n
systemctl<\/code> in RHEL 7<\/strong>. Knowing these command differences makes it easier to administer and troubleshoot servers across both versions.<\/p>\n\n\n\nFAQs<\/h2>\n\n\n\n
1. What is the main difference between Red Hat 6 and Red Hat 7 commands?<\/h3>\n\n\n\n
service<\/code> and chkconfig<\/code>, while Red Hat 7 uses systemctl<\/code> and systemd.<\/p>\n\n\n\n2. How do I restart a service in Red Hat 6?<\/h3>\n\n\n\n
service name restart<\/pre>\n\n\n\n
3. How do I restart a service in Red Hat 7?<\/h3>\n\n\n\n
systemctl restart name.service<\/pre>\n\n\n\n
4. How can I check the network interfaces in Red Hat 7?<\/h3>\n\n\n\n
ip addr<\/pre>\n\n\n\n
5. What command is used to check open listening ports in Red Hat 7?<\/h3>\n\n\n\n
ss -tlp<\/pre>\n\n\n\n
Related Articles<\/h2>\n\n\n\n
Install Apache2, PHP 7, and MySQL on Red Hat 7 Server<\/h3>\n\n\n\n