- Details
- admin
- Redhat / CentOS
Loaded plugins: product-id, subscription-manager This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register. There are no enabled repos. Run "yum repolist all" to see the repos you have. You can enable repos with yum-config-manager --enable
- Details
- admin
- Redhat / CentOS
ifconfig
command to display system IP address has become obsolete. Currently, to view an IP address on your RHEL 7 system enter the following linux command: # ip addr show OR # ip a s 2: enp0s3: mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:15:38:b7 brd ff:ff:ff:ff:ff:ff inet 10.1.1.110/8 brd 10.255.255.255 scope global enp0s3 valid_lft forever preferred_lft forever inet6 fe80::a00:27ff:fe15:38b7/64 scope link valid_lft forever preferred_lft forever
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- admin
- Redhat / CentOS
systemctl
command is used on RedHat 7 linux to manage services system wide. It allows administrators to manage ssh service to start, restart, stop or enable autoload after system startup. In install ssh service on your RHEL 7 linux run a following linux command: # yum install opensshBy defalt SSH service or to be more precise
sshd
( daemon ) is disabled. Once the opensshd package installed, you can check the status of SSHD service by using the below command: # systemctl status sshd sshd.service - OpenSSH server daemon Loaded: loaded (/usr/lib/systemd/system/sshd.service; disabled) Active: inactive (dead)To start ssh daemon (sshd) on RHEL 7 run:
systemctl start sshd
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- admin
- Redhat / CentOS
ip
command: # ip addr show 2: enp0s3:mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 08:00:27:15:38:b7 brd ff:ff:ff:ff:ff:ff valid_lft forever preferred_lft forever inet6 fe80::a00:27ff:fe15:38b7/64 scope link valid_lft forever preferred_lft forever
- Details
- admin
- Redhat / CentOS
Introduction
Logrotate is a utility designed for administrators who manage servers producing a high volume of log files to help them save some disk space as well as to avoid a potential risk making a system unresponsive due to the lack of disk space. Normally, a solution to avoid this kind of problem is to setup a separate partition or logical volume for a /var mount point. However, logrotate may also be a viable solution to this problem especially if it is too late to move all logs under different partition. In this article we will talk about usage and configuration of logrotate on RedHat / CentOS Linux server.
What is Logrotate
Logrotate provides an ability for a system administrator to systematically rotate and archive any log files produced by the system and thus reducing a operating system's disk space requirement. By default logrotate is invoked once a day using a cron scheduler from location /etc/cron.daily/
# ls /etc/cron.daily/
cups logrotate makewhatis.cron mlocate.cron prelink readahead.cron rhsmd tmpwatch