DTrace is a comprehensive dynamic tracing framework created by Sun Microsystems for troubleshooting kernel and application problems on production systems in real time. Originally developed for Solaris, it has since been released under the free Common Development and Distribution License (CDDL) in OpenSolaris and it’s descendant illumos, and has been ported to several other Unix-like systems.
Category: Operating System
What do you need for Small and Medium-Sized Enterprise businesses in IT department? Directory service, Mail service, Firewall. Anti-Spam, and many other services. You have to pay for each service if you want to have proprietary software such as Microsoft’s products. When we are talking about cost, open-source software will help you to reduce costs. Please consider that open-source software has cost for you but it will lower than closed-source software.
Windows 2008 was born on February 2018 and Microsoft released Windows 2008 R2 on October 2009. I think, Windows 2008 R2 was one of most popular Windows servers in history.
Now, Windows 7, Windows 2008 and Windows 2008 R2 are old men. We have to say goodbye to these guys in this year and next year.
Why We Should Mitigate SSH Based Attack SSH (Secure Shell) is a most popular remote protocol. SSH allows remote login and execute commands. That providing secure way to login and run commands on remote systems in unsecured networks. Telnet replace with SSH cause of offering more security. But SSH has...
VNC is a fast and secure way to managing Linux systems via GUI remotely. VNC needs proper configuration to work without issue. Configure VNC on Linux systems will be difficult and confusing for beginners. Fortunately, Red Hat provides an application to create VNC configuration as a script automatically.
This post is about NTP Software implementations actually, but I have to write some words about NTP. NTP is an angle for financial applications, actually some of services such as banking services are very depended to clock synchronizations protocols. NTP is an ancient thing, it is more than 30 years old and even older than Windows 7 and Windows XP.
Microsoft has announced general availability of Windows Server 2019 on 2 October 2018. Latest version of Windows Server comes with cool features that I want to review those features in this post. It was announced on March 20, 2018, and the first Windows Insider preview version was released on the same day. Windows Server 2019 is built on the strong foundation of Windows Server 2016 and brings numerous innovations on four key themes: Hybrid, Security, Application Platform, and Hyper-Converged Infrastructure (HCI).
As an IT admin, one of the responsibilities you have is to ensure systems continue to run smoothly. That is true for a number of activities and components, such as monitoring if a disk is going to run out of space, determining how much memory and processing a Hyper-V host is consuming so you can plan for new VMs, and many other examples.
Dynamic Software Updating (DSU) Dynamic Software Updating (DSU) is a field of research pertaining to upgrading programs while they are running. DSU is not currently widely used in industry. However, researchers have developed a wide variety of systems and techniques for implementing DSU. These systems are commonly tested on real-world programs. Current operating...
The Unbreakable Enterprise Kernel Release 5 (UEK R5) is a heavily tested and optimized operating system kernel for Oracle Linux 7 Update 5 and later on the x86-64 and 64-bit ARM (aarch64) architectures. It is based on the mainline Linux kernel version 4.14.35. This release also updates drivers and includes bug and security fixes.