[memo] Ubuntu : ctrl-L not work , 按 ctrl-L 不會清除螢幕 , TERM , .bashrc .profile 問題 , Ubuntu 8.04.4 LTS

這個版本的 .bashrc 不 work , 要用 .profile
lsb_release  -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 8.04.4 LTS
Release: 8.04
Codename: hardy
—-
$ cat .profile
export EDITOR=vi
export PATH=/sbin:$PATH
export LANG=
export TERM=xterm
export http_proxy=
export https_proxy=

Use dd command to backup whole disk to image file , acer desktop , win7 , pv(pipe viewer example)

Acer ASPIRE M1930 partition layout

Same PC but install windows7

 

-- OK! 在 virtualbox 測試
dd if=/dev/sda | pv | ssh -p 2200 [email protected] 'cat > winxp2.dd.img'
ssh -p 2200 [email protected] 'cat winxp2.dd.img' | pv | dd of=/dev/sda

-- OK! 把 Acer PC 整個硬碟備份到遠端 server 的 image file
dd if=/dev/sda | pv | ssh -p 2200 [email protected] 'cat > /mnt/m1/acer-pc-win7.dd.img'

-- OK!把 Acer PC 改裝 windows7 後, 備份到遠端 server
-- 用 pv 看進度 , pipe 給 gzip 壓縮後再透過 ssh 傳到遠端 server ,
dd if=/dev/sda | pv | gzip | ssh -p 2200 [email protected] 'cat > /mnt/m1/desktop-win7.dd.img.gz'

976773168+0 records in
976773168+0 records out
500107862016 bytes (500 GB, 466 GiB) copied, 12321.3 s, 40.6 MB/s

94G     desktop-win7.dd.img.gz


[memo] ssh tunnels

ssh -D 12345 -o TCPKeepAlive=yes -o ServerAliveInterval=10 -p 2200 [email protected]ter.tw

ssh -D 12345 -o TCPKeepAlive=yes -o ServerAliveInterval=10 [email protected]

ssh -L 33389:192.168.100.2:3389 -o TCPKeepAlive=yes -o ServerAliveInterval=10 -p 2200 [email protected]

 

# —–
ssh -L 8000:192.168.1.1:80 -o TCPKeepAlive=yes -o ServerAliveInterval=10 -p 2200 [email protected]
說明: 在本機端(port 8000) 建立一個與 desktop.monster.tw 的 ssh (port 2200) 通道, 由 desktop.monster.tw 連向 192.168.1.1 的 port 80
所以只要用 browser 連到本機 http://127.0.0.1:8000 即可連入 192.168.1.1:80

URL: OSX ssh tunnel

 

 

用 browser 連到本機 http://127.0.0.1:33890 即可連入 192.168.100.101:3389
ssh -L 33890:192.168.100.101:3389 -o TCPKeepAlive=yes -o ServerAliveInterval=10 -p 2200 [email protected]