4,112 reputation
613
bio website systemajik.com
location Gatineau, Canada
age 59
visits member for 3 years, 7 months
seen Sep 20 at 22:59
I have over 30 years experience in all phases of software development and delivery. I have administered a variety of midrange servers, and worked with systems from PCs to Mainframes.

Oct
22
answered Seem to be having a problem with RealVNC with centos can't input username
Oct
22
revised Do I need a desktop to run a GUI?
Add additional information.
Oct
22
answered Do I need a desktop to run a GUI?
Oct
19
answered Can a home directory have both .cshrc and .bashrc files?
Oct
14
revised Write access without read access
Clarifications related to comments.
Oct
14
answered Write access without read access
Sep
21
answered Backup a Windows PC to a Linux Machine
Sep
21
answered Unable to do paswordless ssh even after following standard procedure
Sep
17
comment How good is the support for NUT-based UPSs against APC?
I don't have any experience with CyberPower, but it appears that many of them are supported.
Sep
17
answered How good is the support for NUT-based UPSs against APC?
Aug
25
revised General Linux support for IPv6 ready?
Fix typo.
Aug
13
answered How to check if NTPD updates Linux machine's time successfully using shell?
Aug
7
comment What are software and hardware interrupts, and how are they processed?
The process is put on the stack while the driver is invoked and queues the I/O. Yes, the write process continues asynchronously after the call returns to the running process. The queue processing will mostly be handled during hardware interrupts for the device.
Aug
6
comment What are software and hardware interrupts, and how are they processed?
The requesting process will be put on the stack, but the device drive will queue the write. The stack will then be popped and the requesting process can continue.
Aug
6
comment What are software and hardware interrupts, and how are they processed?
Normally, I/O read is called synchronously and the process won't run until the I/O completes. For reads you almost always want this. Writes usually occur asynchronously allowing the process to continue running.
Aug
6
comment What are software and hardware interrupts, and how are they processed?
Either interrupt will cause the state to be pushed on the stack. This allows the system to reload the state when it is done with the interrupt.
Aug
4
answered How do I configure ssh tunneling past a firewall?
Aug
4
revised What are software and hardware interrupts, and how are they processed?
Respond to comment.
Aug
3
answered What are software and hardware interrupts, and how are they processed?
Jul
31
answered use iptables to allow incoming connections to some computer on port XYZ?