/etc/security/limits.conf
* soft nofile 1024
* hard nofile 65536
* soft nproc 2047
* hard nproc 16384
/etc/sysctl.conf
kernel.msgmnb = 65536
kernel.msgmax = 8192
kernel.shmmax = 4294967295
kernel.shmall = 1073741824
fs.file-max = 6815744
kernel.msgmni = 2878
kernel.sem = 250 32000 100 142
kernel.shmmni = 4096
net.core.rmem_default = 4194304
net.core.rmem_max = 4194304
net.core.wmem_default = 262144
net.core.wmem_max = 1048576
fs.aio-max-nr = 3145728
# /sbin/sysctl -p
# /sbin/sysctl -aCheck CPU on Linux
/proc/cpuinfo
/proc/meminfo
lsof -i:5555
* login shell configuration
/etc/shells
* ftpuser
delete the following list as deny user
/etc/ftpuser
* root user login configuration
delete the following line from /etc/default/login
CONSOLE=/dev/console
xset b off
modify /etc/yum.conf
Adding following line.
proxy=http://proxy.hostname.com:5273/
# vi /etc/hosts
127.0.0.1 xxxx localhost.localdomain localhost
# vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=xxxx
GATEWAY=192.168.0.1
/etc/rc.d/init.d/network restart
# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
ONBOOT=yes
BOOTPROTO=static
IPADDR=192.168.0.100
NETMASK=255.255.255.0
GATEWAY=192.168.0.1
reboot machine or
# ifconfig eth0 192.168.0.100
* Using loadkey (keymap 0-15, please check by the 'dumpkeys | head -1')
% loadkeys
keymaps 0-15
keycode 58 = Control
keycode 29 = Caps_Lock
* Using xmodmap(X Only)
% xmodmap .xmodmaprc
.xmodmap includes:
remove Lock = Caps_Lock
remove Control = Control_L
keysym Control_L = Caps_Lock
keysym Caps_Lock = Control_L
add Lock = Caps_Lock
add Control = Control_L
* Using sysconfig/keyboard
Add the follwoing entry to /etc/sysconfig/keyboard
KEYTABLE="jp106_Ctrl_CAPS"
Additionally for X, change the following of /usr/X11/xorg.conf
Option "XkbDisable" (Duplicate)
Option "XkbOptions" "ctrl:swapcaps" (Exchange)
Option "XkbOptions" "ctrl:nocaps" (Change CapsLock to Ctrl Only)
solve it by run 'setxkbmap'
Ubuntsu
ubuntsu 12 dns
/run/nm-dns-dnsmasq.conf
ubuntsu host name
edit /etc/hostname
servername.local
# /etc/init.d/networking restart
# hostname
servername.local
$ sudo apt-get install python-software-properties $ sudo apt-add-repository ppa:flexiondotorg/java $ sudo apt-get update $ sudo apt-get install sun-java6-jre sun-java6-jdk sun-java6-plugin
XRDB
sudo apt-get install xrdp gnome-session-fallback
sudo vim /etc/xrdp/startwm.sh
#!/bin/sh
if [ -r /etc/default/locale ]; then
. /etc/default/locale
export LANG LANGUAGE
fi
echo "gnome-session --session=gnome" > ~/.xsession ;
. /etc/X11/Xsession
sudo sysv-rc-conf xrdp on
sudo /etc/init.d/xrdp start
window manager replacement unity to gnome(fallback) + bluetile on ubuntsu
1. install packages
sudo apt-get install gnome-session-fallback
esudo apt-get install bluetile
2. (if connecting via nx client)
modify /usr/NX/etc/node.cfg
CommandStartGnome = "/etc/X11/Xsession 'gnome-session --session=gnome-classic'"
3. run bluetile once, then modify ~/.bluetilerc and add
start_dock: false (if you want to remove bluetile tool bar)
exit window manager or terminate nx session
4. login window manager or choose gnome session from nx client
open terminal and run bluetile
Command(Win) + d <- change layout
(if you want to run just bluetile, specify /usr/bin/bluetile in nx client custom session or run it on console)
Emacs 24 Ubuntu
# add-apt-repository ppa:cassou/emacs
# apt-get update
# apt-get install emacs24 emacs24-el
If the DNS is running, rename the /etc/resolv.conf then:
swagetntd?-r
swinstall -s host:/mnt1/home/root/patch/PHCO_29957.depot PHCO_29957
mount -v cdrfs -o ro /dev/cd0 /cdrom
* Use a system editor to add the following line to the /etc/pfs_fstab
example: /dev/dsk/c3t2d0 /SD_CDROM pfs-rrip xlat=unix 0
* login as the root user
$ su root
* Run the following file:
# nohup /usr/sbin/pfs_mountd &
# nohup /usr/sbin/pfsd &
* Insert the CDROM and run the following to mount the CDROM
# /usr/sbin/pfs_mount /SD_CDROM
number of CPU
psrinfo
32bit or 64bit kernel
% isainfo -v
64-bit sparcv9 applications
32-bit sparc applications
dmesg|grep mem
sys-unconfig
Unix and Windows:
netstat -rn
Router OS(Cisco):
show ip route
nbtstat
arp
Router shutdown by reload commandLinux
# vi /etc/gdm/custom.conf
[xdmcp]
Enable=true
# vi /etc/X11/xdm/Xaccess
* (from #*)
reboot machine
% XWin -screen 0 1440x900x256 -fullscreen -query hostname or ip address
If you get xdmcp error in second or later connection,
# kill `cat /var/run/gdm.pid`
killing /usr/sbin/gdm-binary process and restart it automatically
inetd --install-as-service
inetd --remove-as-service
Local Security Policy
Coontrol panel -> Administration Tool -> Local Security Policy
run "secpol.msc"
Group Policy
run "gpedit.msc"
Create the following directory on start menu
Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}
mshta.exe
Alt, Space, M
<html>
<head><meta http-equiv="content-type"
content="text/html;charset=UTF-8">
<title></title>
<style type="text/css">
<!--
* {font-family: "Times New Roman";}
-->
</style>
</head>
<body>
</body>
</html>
Class|Range
Class A|10.0.0.0?10.255.255.255
Class B|172.16.0.0?172.31.255.255
Class C|192.168.0.0?192.168.255.255
|Command
|User Name USER (username)
|Password PASS (password)
|List LIST
|Display mail RETR (message_number)
|Display mail only top line TOP (message_number lines)
|Delete mail DELE (message_number)
|Finish QUIT
Mac Finder
defaults write com.apple.finder AppleShowAllFiles -boolean true
killall Finder
Copy file to clipboard
# Mac
pbcopy
# Linux
xsel --input --clipboard
# Cygwin
putclip