Australia photo & PC memo

ssh_config
ServerAliveInterval (サーバ生存確認の間隔)

"Heartbeat 300"

keep-alive for ssh

How To Tile Windows In Gnome the ubuntu guy

wmtile
# Login as root and browse to /usr/share/tile/
# Open the rc file in gedit
# Change the second option to read “multi-desktop netwm”

How to install Adobe PDF Reader with Plug-in for Mozilla Firefox in Feisty Fawn -- Ubuntu Geek

sudo apt-get install acroread mozilla-acroread acroread-plugins

Ubuntu -- nautilus-script-collection-svn

$ nautilus-script-manager enable Subversion
$ nautilus -q

deb http://archive.ubuntulinux.jp/ubuntu-ja gutsy/
deb-src http://archive.ubuntulinux.jp/ubuntu-ja gutsy/
deb http://archive.ubuntulinux.jp/ubuntu-ja gutsy-ja/
deb-src http://archive.ubuntulinux.jp/ubuntu-ja gutsy-ja/

Linux&BSD：導入メモ：Ubuntu 7.40
Japanese Input and Fonts in Ubuntu 7.10

Japanese_Input_and_Fonts_in_Ubuntu_8.04_using_SCIM

SSHFS - Community Ubuntu Documentation

% printenv | less

UNIX Tutorial Eight

    * OSTYPE (OS type)
    * USER (your login name)
    * HOME (the path name of your home directory)
    * HOST (the name of the computer you are using)
    * ARCH (the architecture of the computers processor)
    * DISPLAY (the name of the computer screen to display X windows)
    * PRINTER (the default printer to send print jobs)
    * PATH (the directories the shell should search to find a command)

UNIX Tutorial Four

$ apropos keyword

Arnolds wor(l)ds Eclipse problems solved (finally)

Install the SUN Java (at least 5.0)
$ sudo update-java-alternatives -s java-1.x.x-sun
$ eclipse -vm /usr/lib/jvm/java-1.x.x-sun/jre/bin/java
* you might need to use sudo to create some files at the first time.

ITmedia エンタープライズ : Linux Tips「SSHのログイン制限を確認しよう」

PermitRootLogin no
PermitEmptyPasswords no
PasswordAuthentication no
AllowUsers hoge
CheckHostIP yes

Firestarter

FreeNX - Community Ubuntu Documentation

$ gksudo gedit /etc/apt/sources.list
deb http://free.linux.hp.com/~brett/seveas/freenx feisty-seveas freenx
deb-src http://free.linux.hp.com/~brett/seveas/freenx feisty-seveas freenx
$ wget http://free.linux.hp.com/~brett/seveas/freenx/seveas.gpg -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo aptitude install freenx
$ sudo nxserver --adduser username
$ sudo nxserver --passwd username
$ sudo nxserver --restart

NoMachine NX - Download the NX Terminal Server and Remote Access Software

cat /var/log/messages | less	＜＜＜ all the system message

cat /var/log/boot.log | less	＜＜＜ boot log

dmesg -n 1	＜＜＜ all panic message at boot time by rc.sysinit

/proc	システムの状態

procinfo	/procのサマリー表示

vmstat 秒数	メモリやディスクの利用状況 

last	ログインしたユーザの履歴

w	現在ログインしているユーザ

lastlog	show login info by user

top	プロセスの監視 

ps aux	実行中のプログラム eg. ps aux | grep service

ps axo user,pid,ppid,tty,start,time,command | grep agent | grep -v grep

ps -ef	実行中のプログラム 

ps f -a	hierarchical view of the parent-child relationships

ps -l	shows more detailed information

pstree 

uptime	CPUの負荷をチェック 

netstat -an	通信の調査 

lsof	オープンファイルの確認 

lsof -i -n	オープンポートとプロセスの対応を確認 

lsof -i:22 -n	指定した番号のポートをオープンしているプロセスの確認 

lsof -u（ログイン名orID）	ログイン名 or ユーザーIDを指定 

find / -type f \( -perm -u+s -o -perm -g+s \) -ls 不審なファイルのチェック

find / -type f -perm -04000 -ls	不審なファイル（SUID）のチェック 

find / -perm +6000 -exec ls -l {} \;	SUID or SGID

du	カレントフォルダ内の使用量

	(eg. du -ha /home | grep '^[0-9]\{3,\}M': find more than 100MB in home)

df	ディスクの状態

	(eg. df -i: check inode usage, df -l: check local filesystems only)

hdparm -ft /dev/sda1	sda1にベンチマークテスト

dumpe2fs -h	Show the file system parameters

fsck	デバイス(HDD)のチェック(使用前にはumountが必須、設定を変更するには tune2fs)

	-A: All file system

	-C: Progress bars

	-N: Dry run

	-V: Verbose output

	-a Noninteractive

makebootdisk [kernel version]    ＜＜＜ uname -r

fdisk -l	＜＜＜ To see /dev info

pnpdump	＜＜＜ viwe isa p&p

file	＜＜＜ determin file type

	# file tree*.rpm ＜＜＜ check RPM’s architecture

	# file /etc/* | grep empty ＜＜＜ find all the empty file

	# uname -a	Linuxのバージョンチェック

	# cat /proc/version

Linux check memory usage

$ top
$ vmstat
$ free -m -t

How to mount a remote ssh filesystem using sshfs Ubuntu Blog

$ sshfs -o transform_symlinks example.com:/stuff /media/home-pc
$ fusermount -u /media/home-pc

Use Evolution with Microsoft Exchange : Ubuntu (6.06 / 6.10) : Ubuntu Tutorials : Dapper - Edgy - Feisty - Gutsy

Server Type: “Microsoft Exchange”
Username: domain/username (ie; your windows domain and user account)
OWA URL: The URL for your office / domain webmail. (ie; https://webmail.domain.com/exchange/)

[Ctrl] + [Alt] + [F1] : Change to CUI (command console)
[Ctrl] + [Alt] + [L] : Lock the screen
[Alt] + [F2] : Run command

How To Use NTFS Drives/Partitions Under Ubuntu Edgy Eft | HowtoForge - Linux Howtos and Tutorials

$ sudo vi /etc/apt/sources.list
Add deb http://flomertens.keo.in/ubuntu/ edgy main main-all
$ sudo apt-get update
$ sudo apt-get install pmount
$ sudo apt-get install ntfs-3g
$ sudo mkdir /media/windows
$ sudo mount -t ntfs-3g /dev/sdd1 /media/windows (-o force)

How To Install VMware Server On Ubuntu 7.04 (Feisty Fawn) | HowtoForge - Linux Howtos and Tutorials
How-to for 8.04

# sudo vmware-install.pl

Before running VMware Server for the first time, you need to configure it by invoking the following command: "/usr/bin/vmware-config.pl". Do you want this program to invoke the command for you now? [yes] NO

# sudo ./runme.pl (vmware-any-any-updateXXX)
This time, we can run vmware-config.pl.

Oreilly Screen
screenのススメ
SCREEN

"C-a c" : create a new screen
"C-a C-\" : quite screen

# screen -list
# screen -S [name]

UNIX Tutorial Five

$ sleep 1000           (type any command to be background)
Ctrl + z, then type bg
$ jobs                 (to check current jobs)
$ fg %1

Processes - Linux Shell Commands

cc hugepgm.c > outlist &

Note: It's a good idea to redirect the output of background tasks to a file, as shown here, since the background task still shares the console with foreground tasks. If you don't, the background task will splash any output it might produce all over your screen while you're editing a file or typing another command.

If you start a long-running task and forget to add the ampersand, you can still swap that task into the background. Instead of pressing ctrl-C (to terminate the foreground task) and then restarting it in the background, just press ctrl-Z after the command starts, type bg, and press enter. You'll get your prompt back and be able to continue with other work. Use the fg command to bring a background task to the foreground.

The /bin/false is a special shell which returns a nonzero error code for blocking access by a user.
The /etc/nologin is used to block logins for accounts and echo a message.

The /etc/profile is the global configuration file that affects all users' environment if they use the bash shell. The user's ~/.bash_profile, if et exists, is the next script that's sourced. This script calls, or sources, ~/.bashrc.

Multiple Command Operators

The semicolon causes all listed commands to be executed independently.
make modules ; echo DO MAKE MODULES_INSTALL NEXT

The double ampersand causes the second command to be excuted if the first command has an exit status of 0 (success).

The double pipe is opposite of the double ampersand.