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Edit current kernel version into the grub menu bar, and finally add rd.break parameters linux6 linux16 /vmlinuz-3.10.0-327.el7.x86_64 root=/dev/mapper/rhel-root ro rd.lvm.lv=rhel/root rd.lvm.lv=rhel/swap rhgb quiet rd.break Use ctrl + x to reboot the system to start Remount the ‘root’ file system, and change into the / sysroot mount -oremount,rw /sysroot chroot /sysroot Changing the root password echo […] During boot, press “e” at the grub loader. Scroll down using the arrow keys to the line starting with “linux”. It would look like this. linux16 /vmlinuz-3.10.0…… Remove the following from that line. “rhgb” and “quiet“. Add the following to the end of the line. “init=/bin/sh“. Press ctrl+x to continue the boot process. Once the […] Enable NFS server systemctl enable nfs-lock.service systemctl enable nfs-server.service systemctl start nfs-lock.service systemctl start nfs-server.service cat >/etc/firewalld/services/mountd.xml <<EOD <?xml version=”1.0″ encoding=”utf-8″?> <service> <short>mountd</short> <description>Mount Lock Daemon</description> <port protocol=”tcp” port=”20048″/> <port protocol=”udp” port=”20048″/> </service> EOD cat >/etc/firewalld/services/rpc-bind.xml <<EOD <?xml version=”1.0″ encoding=”utf-8″?> <service> <short>rpc-bind</short> <description>Remote Procedure Call Bind</description> <port protocol=”tcp” port=”111″/> <port protocol=”udp” port=”111″/> </service> EOD restorecon […] yum install gcc-c++ yum install openssl-devel.x86_64 cd /usr/local/src wget http://mirror.nus.edu.sg/apache//httpd/httpd-2.4.18.tar.gz wget http://ftp.ps.pl/pub/apache//apr/apr-1.5.2.tar.gz wget http://ftp.ps.pl/pub/apache//apr/apr-util-1.5.4.tar.gz tar xvfz apr-1.5.1.tar.gz tar xvfz apr-util-1.5.3.tar.gz tar xvfz httpd-2.4.18.tar.gz tar xvf pcre-8.35.tar.bz2 cd /usr/local/src/apr-1.5.1 ./configure –prefix=/usr/local/apr make make install cd /usr/local/src/apr-util-1.5.3 ./configure –prefix=/usr/local/apr-util –with-apr=/usr/local/apr make make install cd /usr/local/src/pcre-8.35 ./configure –prefix=/usr/local make make install cd /usr/local/src/httpd-2.4.18 ./configure –prefix=/usr/local/apache \ –enable-rule=SHARED_CORE \ […] Install MySQL on CentOS 7 Introduction MySQL is a popular open source relational database. The popularity of MySQL means there is an abundance of information online and well documented client libraries available. MySQL supports many common database features such as replication, partitioning, triggers, views, and stored procedures. A plugin storage architecture allows support for multiple […] I like using CentOS on my servers and desktop machine. After I start using, my ssh connections terminate so quickly like using CentOS on my servers and desktop machine. After I start using, my ssh connections terminate so quickly if I do not type anything at terminal in a few minutes, may be seconds. It […] entOS Linux release 7.0.1406 (Core) Verify Centos Version cat /etc/centos-release I’ve discovered bugs in some install packages. One such package is Zimbra. To work around these bugs, IPv6 and associated dependencies need to be disabled. To disable IPv6 in a CentOS 7 installation, perform the following tasks: Task 1 Navigate to and create a file […] Configure DNS Entries on your local DNS server Setup DNS A Record Ensure you have a Reverse lookup zone Setup MX Record Configure Host Settings Login as root user su root Install pre-requisites yum install wget make nc sudo sysstat libtool-ltdl glibc perl-core ntp unzip libaio Set hostname hostname mail.yourdomain.com Edit hostname file nano /etc/hostname […] Centos 6.7 apache2.4.x compile and install and configure virtual hosts, SSL access, user-based access control apache2.4 new features Loadable MPMs At compile time can be made ??of a plurality of removable of MPM. The choice of MPM can also be configured at run time. Event MPM full support Event MPM. This is just test version […] How to install redis server on CentOS 7 / RHEL 7 wget -r –no-parent -A ‘epel-release-*.rpm’ http://dl.fedoraproject.org/pub/epel/7/x86_64/e/ rpm -Uvh dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-*.rpm or yum install epel-release install redis server Now use yum command to install redis server yum install redis Two important redis server configuration file’s path 1. /etc/redis.conf 2. /etc/redis-sentinel.conf To start redis server systemctl start […] |
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