Kuo Lab Wiki - computers

adobe_illustrator

Anonymous (anonymous@undisclosed.example.com) — 2023-02-09T09:12:02+00:00

Troubleshooting * Error: “Sorry, your sign-in doesn't match the IP range of your assigned lab. Please contact you IT Administrator” * Solution: Go to /Library/Application Support/Adobe, remove/delete the “OperatingConfigs” directory. For more details and discussion, please see:

apache_server_configuration

Anonymous (anonymous@undisclosed.example.com) — 2022-11-02T08:04:33+00:00

Apache server configuration Packages To install Apache and PHP on Ubuntu: sudo apt install apache2 sudo apt install php libapache2-mod-php Process control and status check sudo systemctl start apache2 sudo systemctl stop apache2 sudo systemctl restart apache2 sudo systemctl status apache2

audio

Anonymous (anonymous@undisclosed.example.com) — 2012-12-23T17:31:01+00:00

Digital audio editing using Audacity Audacity () is an open-source application for recording and editing digital audio files. Manipulate playback speed One useful feature of Audacity is to manipulate the playback speed of an audio file. One can use this to slow down a song in order to learn it (such as what I do for my daughters' violin lessons) or to speed up an audiobook. To do this, open up the MP3 file and select the

backup

Anonymous (anonymous@undisclosed.example.com) — 2012-12-23T17:15:42+00:00

Backup This is how I use rsync and crontab with some simple shell scripts to set up an automatic rotating backup system for my files. Notes References Many thanks to those people who shared their knowledge and experience on the web. * * *

bioinfo_server_configuration

Anonymous (anonymous@undisclosed.example.com) — 2026-01-22T06:57:22+00:00

Bioinfo Server Configuration compiler chkuo@koa[~]$ sudo apt install gcc chkuo@koa[~]$ sudo apt install g++ chkuo@koa[~]$ sudo apt install build-essential openmpi # installation chkuo@koa[~]$ sudo apt install openmpi-bin openmpi-doc libopenmpi-dev # to use mpi # 1. prepare '~/.mpd.conf' in the home directory # This file must has the permission set to 600 # and contains one line: MPD_SECRETWORD= # is a string (for example, your username) # 2. prepare a command sc…

dell_idrac

Anonymous (anonymous@undisclosed.example.com) — 2017-10-18T07:30:38+00:00

Dell iDRAC Using Gmail SMTP * need to turn off 2-step verification, then turn on “allow less secure apps” * SMTP server: smtp.gmail.com * port: 587

dell_openmanage

Anonymous (anonymous@undisclosed.example.com) — 2014-09-15T03:28:09+00:00

Dell OpenManage Ref * : Dell OpenManage Ubuntu Repository Install sudo echo 'deb http://linux.dell.com/repo/community/ubuntu precise openmanage' | sudo tee -a /etc/apt/sources.list.d/linux.dell.com.sources.list sudo gpg --keyserver pool.sks-keyservers.net --recv-key 1285491434D8786F sudo gpg -a --export 1285491434D8786F | sudo apt-key add - sudo apt-get update sudo apt-get install srvadmin-all

dhcp_server_configuration

Anonymous (anonymous@undisclosed.example.com) — 2020-08-15T16:52:56+00:00

DHCP server configuration Installation Download and install the package sudo apt-get install isc-dhcp-server Configuration Specify the interfaces dhcpd should listen to in /etc/default/isc-dhcp-server, for example: INTERFACESv4="eno1np0" Edit

dns_server_configuration

Anonymous (anonymous@undisclosed.example.com) — 2020-08-15T17:53:10+00:00

DNS server configuration Installation Download and install the packages sudo apt install bind9 bind9utils bind9-doc bind9-host dnsutils Configuration DNS Forwarders To setup a caching nameserver, add the IP addresses of the ISP's (e.g., Academia Sinica)

download_scripts

Anonymous (anonymous@undisclosed.example.com) — 2012-12-23T17:28:10+00:00

#!/usr/bin/perl -w my $script_name = 'cp_photo.3.pl'; # Chih-Horng Kuo # copy photo files from in_dir to out_dir, organize file by date # v3 2012/03/01 # style change # add 'mode' option for commonly used in_dir # v2 2007/03/27 # change dir name # v1 2005/09/01 use strict; use warnings; use Getopt::Long; my $in_dir; my $out_dir; my $mode; my $verbose; my $debug; GetOptions( "in_dir=s" => \$in_dir, "out_dir=s" => \$out_dir, "mode=i" => \$mode, "…

firewall_configuration

Anonymous (anonymous@undisclosed.example.com) — 2020-08-15T16:13:09+00:00

Firewall configuration Source NAT First enable IPv4 packet forwarding by editing /etc/sysctl.conf, uncomment (or add) the following line: net.ipv4.ip_forward=1 Apply by sudo sysctl -p Then add the following lines to /etc/rc.local (so the rule is enabled on reboot):

ftp_server_configuration

Anonymous (anonymous@undisclosed.example.com) — 2023-09-27T06:58:57+00:00

FTP server configuration References * *

image_gallery

Anonymous (anonymous@undisclosed.example.com) — 2012-12-23T17:30:03+00:00

Image gallery A set of perl scripts for generating image gallery and html codes. I wrote these to manage my family web site. Photos NOTE: requires ImageMagick. #!/usr/bin/perl -w my $script_name = 'family_photo.12.pl'; # Chih-Horng Kuo # to generate html code for family website photo pages # v12 2009/09/25 # change the layout of individual photo page # v11 2009/09/16 # bug fix (files with the same name in the same month) # style change # update google analytics …

lossless_jpeg

Anonymous (anonymous@undisclosed.example.com) — 2013-04-17T17:08:04+00:00

Lossless JPEG Transformation JPEG, or JPG, is a popular image compression format used by entry-level digital cameras. I often need to transform (e.g., rotate 90-degree) JPEG files downloaded from my camera. However, because JPEG is a 'lossy' compression format, each additional round of decompression and recompression leads to further degradation of image quality. One solution to prevent this problem is to use image manipulation programs that are capable of lossless transformation. Here are some…

mac_basic_setup

Anonymous (anonymous@undisclosed.example.com) — 2020-08-07T04:40:47+00:00

Mac Basic Setup Applications Basic * Firefox: web browser * TextWrangler: text editor * FileZilla: sftp client * OpenOffice * MS Office available from the IPMB IT office (AS site license) Optional * gcc: C compiler, install using the Xcode Tools (under Download Software/Developer Tools

mdadm

Anonymous (anonymous@undisclosed.example.com) — 2011-08-24T07:15:17+00:00

mdadm Usage * Overview: cat /proc/mdstat * To view the status of an array: sudo mdadm --detail /dev/md0 * To mark a device as faulty: sudo mdadm /dev/md0 --set-faulty /dev/sda1 * To remove a failed or spare device: sudo mdadm /dev/md0 --remove /dev/sda1

megaraid_megacli

Anonymous (anonymous@undisclosed.example.com) — 2011-01-06T16:38:50+00:00

MegaRAID MegaCli MegaCli is a command line tool provided by MegaRAID to configure/monitor their hardware RAID controllers. Currently all hard drives on Oak are controlled by a MegaRAID SAS 8708EM2 w/ 256Mb RAM. Installation MegaCli is available as a RPM for RedHat Linux from

server_basic_setup

Anonymous (anonymous@undisclosed.example.com) — 2023-10-27T08:54:59+00:00

Server Basic Setup RAID * high-reliability servers (firewall, DHCP, web, etc) * 4 drives: RAID 1 (* 2), hot spare * 1, cold spare * 1 * computational servers * RAID 10, hot spare * 1 or 2 Operating System * Ubuntu 20.04 LTS 64-bit Server Edition.

ssh_security

Anonymous (anonymous@undisclosed.example.com) — 2023-03-28T06:40:14+00:00

SSH security Limit by user Only allow required users to login. Mac: in “System Preferences/Sharing/Remote Login”, choose users in the “Allow access for:” box. Limit by IP address First: deny connection from all in /etc/hosts.deny # /etc/hosts.deny # deny from all sshd: ALL

start

Anonymous (anonymous@undisclosed.example.com) — 2025-09-05T06:08:06+00:00

Computers Workstation and server setup * Mac basic setup * Ubuntu workstation basic setup * Ubuntu 24.04.3 LTS workstation setup log * Server basic setup * Bioinfo server configuration * Apache server configuration * DHCP server configuration * DNS server configuration * Firewall configuration * FTP server configuration * VPN server configuration * mdadm (Linux software RAID utility) * MegaRAID MegaCli * Dell OpenManage * Dell iDRAC Linux * ssh_s…

ubuntu_workstation_basic_setup

Anonymous (anonymous@undisclosed.example.com) — 2024-09-11T04:08:19+00:00

Workstation * Ubuntu workstation basic setup BIOS * before installing Ubuntu, power on the workstation, enter the BIOS setting, and update the boot setting. CD/DVD-ROM should be listed as the 1st choice, following by the hard drive for Ubuntu installation

video_conversion

Anonymous (anonymous@undisclosed.example.com) — 2013-04-17T14:12:57+00:00

Video Conversion Tutorial * Installing FFmpeg on Mac OS X by Stephen Jungels: Required Programs * LAME: * FAAC and FAAD: * YASM: * FFmpeg: Obtaining the source code and installation is pretty straightforward for the most part, basically just download the source code tar ball ( filename.tar.gz), decompress, u…

vpn_server_configuration

Anonymous (anonymous@undisclosed.example.com) — 2020-03-26T03:43:02+00:00

VPN server configuration Ref *