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Computers, Page 19

To convert flac to m4a by using ffmpeg on Mac OS X

first, download ffmpeg (http://www.ffmpegmac.net/) for mac os x binary. you could use the following command to convert : # ffmpeg -i xxxxx.flac …

Red Hat Enterprise Linux 6 – Creating a 7TB Partition Using parted Always Shows “The resulting partition is not properly aligned for best performance” Issue

Trying to create a 7TB partition using parted, but parted always complains as follows: “The resulting partition is not properly aligned for …

AirPlay on Raspberry Pi

把塵封已久的 Raspberry Pi 拿出來玩為了使 raspberry pi 連 wifi 我買了 EDIMAX EW-7811Un 無線網卡. 首先, 先把 raspberry pi 的作業系統安裝好. 我是下載 RASPBIAN JESSIE LITE …

linux notes – restrict ldap netgroup users from login

這個範例是對學生群組限制他們登入某主機首先在 ldap 先建立 netgroup ou 在ldap 建立 netgroup students 群組並加入學生帳號: user1 user2 加入 “account required pam_access.so” 這一行到 /etc/pam.d/sshd …

忘記密碼改變 Mac OS X 密碼

開機的時候按 command + S 進入 single user mode 然後用下列指令改變密碼 # fsck -fy # mount -uw / # launchctl load /System/Library/LaunchDaemons/com.apple.opendirectoryd.plist # passwd …

把 linux 目前工作放到背景並離開視窗

1. 在正在執行的視窗按 Ctrl + Z 2. 用 bg 指令派到背景 bg n 3. disown -h %n 這樣就可以關閉視窗工作不會停掉範例 : # sleep 3600 …

[linux] how to generate a ssh2 key

# ssh-keygen -t rsa -b 2048 # ssh-keygen -e -f id_rsa.pub —- BEGIN SSH2 PUBLIC KEY —- bAAAB3Nzax1yc2EAAA3BIwAAAQEAx8xMS2x3x+Rx2xKxHxsxVxUxvxWxhx/xPxHxZx3xvE 6IJuidg+DxRWcu0Z4+zlP8lDfvQHox5y80qnK5LxQN4doae8mSxvNMuByxox5xTxnxaxGr bZLvKWauRRxIWF7AeEU3St3fCjUAxchHD0HDJFv10J4lyxfjLdBNdLKMPtlgD8vCgmfV4A T+6Lf7IA9jZxr68ZQEGESdhzMwtuxO8J467GQ5eU0L2HL5pwd7OujEqPW8Y5OnzhZCMd8S b7HiXZpeL2WLaNYSEggispn09UH7SSexUDxcxxDCppnJaxcQNr6UoIJ+/qQAMT2jUYxzaH …