Yum – Warning – “Repository packages-microsoft-com-prod is listed more than once in the configuration”

Background There is a bit of an annoying error that I get whenever I issue yum commands against my Linux CentOS host. Error The error reads :- Image Textual Troubleshooting Yum Repository /etc/yum.repos.d Objective Let us look into our /etc/yum.repos.d folder and see which files reference packages-microsoft-com-prod Command Syntax Sample Output Output - Image Output … Continue reading Yum – Warning – “Repository packages-microsoft-com-prod is listed more than once in the configuration”

FileZilla :- Open for write: permission denied – File Transfer Failed

Background Trying to use FileZilla to copy a file I downloaded to my Windows Machine so that I can install same file on Linux. Backwards. But, Linux is just not my fluency. Error Error Image Error Text Troubleshooting List folder permissions Commands Command - ls Syntax Sample Image Explanation Our targeted folder ( /downloads ) … Continue reading FileZilla :- Open for write: permission denied – File Transfer Failed

SQL Server – Linux – Configuring Firewalld

Background Tried to access our recently upgraded SQL Server on Linux, but unable to do so from a different computer. Troubleshooting Introduction Let use see which network ports our Microsoft SQL Server Instance is using. Tools lsof Syntax Sample Output   Explanation SQL Server is listening on a couple of ports services ms-sql-m Ports 56405 … Continue reading SQL Server – Linux – Configuring Firewalld

SQL Server – Upgrade – v2017 to v2019/CTP – Linux

Background Let us upgrade our Microsoft SQL Server v2017 running on Linux. We will be upgrading it to v2019/RC1. Outline Repositories Current Repository List Current Repository files Map Repository Files to Repositories Update Repository Add Repository File for MS SQL Server v2019 Upgrade SQL Server Upgrade SQL Server - Engine Restart SQL Server Service Validate … Continue reading SQL Server – Upgrade – v2017 to v2019/CTP – Linux

NUMA – Get Current Configuration ( On Linux )

Background Reading through database documentation and understanding that some database platforms do not really support NUMA, as well as others. What is NUMA? Wikipedia Link Modern CPUs operate considerably faster than the main memory they use. CPUs increasingly have found themselves "starved for data" and having to stall while waiting for data to arrive from … Continue reading NUMA – Get Current Configuration ( On Linux )

Samba :- Linux & Windows Integration

Background Mid last week as I was returning home received a word. It read :- The Linux Host is not accessible and the Linux Subsystem on our Window 10 desktop is not working either.   Working Through Windows 10 Linux Subsystem Looked at the Windows 10 Subsystem and the issue appears to be newbie issues. … Continue reading Samba :- Linux & Windows Integration

Samba :- Name Resolution – From Linux, Resolve Windows Host

Background Here is how to use Samba to perform name resolution from a Linux Host to MS Windows computers. Lineage Windows WINS Installing & Configuring WINS Link Linux Samba Samba – Host Name Resolution Link Steps Outline Package Installation samba-winbind Network Configuration Names Service Switch /etc/nsswitch.conf Samba etc/smb.conf Firewall Configuration Firewall - firewalld Allow tcp/137 … Continue reading Samba :- Name Resolution – From Linux, Resolve Windows Host