Suse

I’ve root ssh access and need to add / delete a few IP address on fly using the IPtables command via local shell script. How do I add or delete an IP address remotely over the SSH session under CentOS / Redhat / RHEL / Debian / Ubuntu Linux?

{ 4 comments }

I‘ve fast RAID-10 disk subsystem with multiple SCSI disks. Apps running under modern Linux kernel don’t write directly to the disk. They write it to the file system cache which is managed by Linux kernel virtual memory manager. Since I’ve high performance RAID controller I need to decrease the number of flushes. How do I tune virtual memory subsystem under Linux operating systems for better performance?

{ 6 comments }

All my local Linux user accounts will be able to log in to my Samba server and access share. How do I restrict access to particular users or network subnet such as 192.168.2.1/24?

{ 7 comments }

I cannot install Apple iTunes software to manage music for my Apple iPod. How do I manage iPod under Ubuntu Linux? What’s the best way to manage my iPod without Apple iTunes software?

{ 16 comments }

How do I restrict access to a given command for instance /opt/apps/start, to authorized users only under Linux / UNIX / BSD operating system?

{ 5 comments }

How do I find out serial number information for my hard disk under Ubuntu Linux Gnome desktop environment?

{ 4 comments }

I need to count one character at a time from input.txt. How do I read one character at a time under Linux / UNIX bash shell script?

{ 6 comments }