Single sign-on (SSO) for KDE and the MATE Desktop Environment only works when your Linux desktop is using the GDM3 greeter (login screen). You must install KDE and MATE using the commands listed in Table 1-6. Commands to Install Desktop Environments. When using RHEL/CentOS 7.x and ...
[rhel7.1]# cat /var/log/audit/audit.log type=USER_AVC msg=audit(1468920066.358:447): pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='avc: denied { disable } for auid=0 uid=0 gid=0 cmdline="systemctl mask iptables ip6tables ebtables" scontext=unc...
The Insights tool is available for Red Hat Enterprise Linux only. It has no effect on other operating systems. You must enable the following repositories on a registered machine: Red Hat Enterprise Linux 6:rhel-6-server-rpms Red Hat Enterprise Linux 7:rhel-7-server-rp...
RHEL4系统中默认没有安装BIND服务器软件包,而只安装了bind-libs和bind-utils两个域名解析相关的软件包 bind-libs软件包中提供了实现域名解析功能必备的库文件,bind-utils中提供了对DNS服务器的测试工具程序 配置DNS服务器 bind软件包的安装在光盘4 #rpm -ivh bind-9.2.4-2.i386.rpm (如果升级软件包的话可以用...
# ntpdate ‑u ‑b ‑s 1.centos.pool.ntp.org # hwclock ‑‑utc ‑‑systohc # chkconfig ntpd on ; service ntpd start Starting Kickstart The next step is to install all the services needed for a Kickstart installation server (Listing 9) and build a file structure for network...
Install NTP Server to Set Correct System Time in RHEL/CentOS 7 This article will explain how you can install and configure aPXE ServeronRHEL/CentOS 7x64-bit with mirrored local installation repositories, sources provided by CentOS 7 DVD ISO image, with the help ofDNSMASQServer. ...
5. Install NTP Services InHadoop Cluster, all the servers should beTime Synchronisedto avoid clock offset errors. TheRHEL/CentOS 7is havingchronydinbuilt for network clock/time synchronization, but Cloudera recommends to useNTP. We need to installNTPand configure it. Once installed, stop ‘chrony...
More services depending on requirements can be also added, for example: # firewall-cmd --permanent --zone=dmz --add-service={http,https,ldap,ldaps,kerberos,dns,kpasswd,ntp,ftp} # firewall-cmd --reload List all services that are added to the zonedmz: ...
RHEL 7.4 or CentOS 7.4 must be installed on both of these servers. Kernel 3.10.0-693.11.6 must be installed on both of these servers. Network configuration file should contain only the system hostname, n...
InRHEL 7,chronyis the default software that is used forNTPsynchronization: # yum install chrony # systemctl start chronyd # systemctl enable chronyd To make surechronyis actually synchronizing your system’s time with time servers you may want to issue the following command two or three times...