MySQL Enterprise Manager Installation on RHEL/OEL/CentOS 6.X

Assalamu'alaikum ..I want to share my experience about installation MySQL Enterprise Manager on Linux, actually Oracle Enterprise Linux 6.5, ya it is similar with Redhat and CentOS on same version. If you used to Oracle DB, of course you are familiar with Oracle Enterprise Manager cloud control, express, and dbconsole. Ya this MySQL Enterprise Manager… Continue reading MySQL Enterprise Manager Installation on RHEL/OEL/CentOS 6.X

Increase /dev/shm tmpfs on RHEL/CentOS/OEL 7

Assalamu'alaikum Wr. Wb. Oracle database uses /dev/shm for its memory target allocation. So, if space of /dev/shm is running out to allocate memory_target, Oracle will failed to startup and shown ORA-00845: MEMORY_TARGET not supported on this system. By default, CentOS 7.4.1708 as my Oracle DB platform allocate only 1.4GB /dev/shm. So I have to increase… Continue reading Increase /dev/shm tmpfs on RHEL/CentOS/OEL 7

scsi_id Not Shown Any Output on VMWare 12.5.X

It Works

Assalamu'alaikum Wr. Wb. My machine running CentOS Linux release 7.4.1708 (Core) on VMWare Workstation 12.5.3 Ubuntu. When I tried to create Oracle ASM disk with udev, no scsi_id output on everydisk. So, how could I create ASM disk? Let's solve scsi_id first. Okay, I tried for /dev/sda: /usr/lib/udev/scsi_id -g -u -d /dev/sda and no output.… Continue reading scsi_id Not Shown Any Output on VMWare 12.5.X

Change Hostname on CentOS/RHEL/OEL 7

Change hostname by hostnamectl

Assalamu'alaikum Wr. Wb. My machine running CentOS Linux release 7.3.1611 (Core). There are some different between redhat based version under 7 and and above 6, include the commands. In this case, I wanna change the hostname from to At the redhat based version under 7, I can change by /etc/sysconfig/network. So, how about… Continue reading Change Hostname on CentOS/RHEL/OEL 7

Create Hotspot Tethering Ubuntu to Smartphone

Create New Wi-Fi Network

Assalamu'alaikum Wr. Wb. Someday I want to connect my Smartphone to LAN/internet via my laptop. Ubuntu 14.04.5 LTS running on my laptop and connected to Smartfren broadband modem (ppp0) or sometimes LAN cable. But how to connect my smartphone to inside the network? Step one, create Wi-Fi connection via network manager. Click Create New Wi-Fi… Continue reading Create Hotspot Tethering Ubuntu to Smartphone