[Ubuntu]Vsftpd: refusing to run with writable root inside chroot()

Problem:when try to login ftp ,terminal has prompt an error about Vsftpd: refusing to run with writable root inside chroot()  Root cause: From the vsftpd version 2.3.5 , the ftp share directory cannot be enable the writeable right. Solution: Step1.gedit /etc/vsftpd.conf and add the following                     … Continue reading “[Ubuntu]Vsftpd: refusing to run with writable root inside chroot()”

[CPU]What is the different between Turbo Boost and Burst?

Turbo Boost is a feature of some high-end Intel processors that allows the processor to run at a higher clock speed than advertised as long as the processor is below its TDP limits . Burst, however, is a feature of their somewhat low-end Intel processors (low-cost Pentiums, Celerons, those in the Atom series) that also … Continue reading “[CPU]What is the different between Turbo Boost and Burst?”

[Ubuntu]How to copy and compare a file ?

Copy the file between the SATA SSD/USB key/DVD disk a Prepare a 500MB TXT file in the 2nd SSD, command:    sudo dd if=/dev/zero of=500M.txt bs=1M count=500 b Mount the 2nd SSD to the directory /mnt,  command:  mount /dev/sdb /mnt c Copy the file between the SATA SSD, command: sudo cp /mnt/500M.txt  /home/user/music/500M.txt d Compare … Continue reading “[Ubuntu]How to copy and compare a file ?”