体育老师教的这些居然都错了!这次有你们要的真人示范

丁当还在上学的时候(也没多少年前啦),最喜欢的就是体育课。

但前阵子发现,体育考试经常做的仰卧起坐,减不了肚子上的肉,如果做得太急太猛不标准,还有受伤风险。

而且大家大概从来也没想过的是:

体育课上做过的热身姿势,很多一直用到了现在,可能也都错了。

不信?你看。

●   ●   ●

错误姿势一:颈部环绕

Easy2boot How To

The Easy2boot tools is super great, the official web site is ... :(

Anyway, Easy2boot makes it very easy to have multi-bootable USB / pen-drive for several ISO's.

REQUIRE

A big pen-drive.

Tip of space usage:

Easy2boot itself: 0.6 GB.

ISO's: x GB + y GB + ...

Space for defregment: >......

Ansible How To

simple video tutorial

OBS: ansible uses py, and py calls /bin/sh, NOT bash !

PRE-CONFIG

suggested: use ssh-pub-key auth without passphrase.

INSTALL

sudo apt-get update && \

sudo apt-get install software-properties-common && \

sudo apt-add-repository ppa:ansible/ansible && ......

Path to System Design

SNAKE TEMPLATE FOR REQUIREMENT

Scenario: use-case (if system is big) / interface (if sys is small).

Necessary: constrain/hypothesis.

Application: service/algorithm, e.g. MVC etc.

Kilobit: data.

Evolve: agile spring plan, inc. performance.

Example of recommender sys for personal radio station.

S: r......

SSHFS How To

Advantage: simple, much safer than samba & nfs, support non-English when mounted in windows.

SERVER

in linux, need ssh server

in win, need SFTP capable SSH server

For instance, OpenSSH-powershell for Windows. See here for detailed steps.

OBS 1: sshfs works, but ssh to win will get win-cmd U......

Samba (SIFS) How To

Warn: for public internet, use vpn/ssh-tunneling (with samba config-ed for vpn/local nic address) or SSHFS.

OBS: CIFS is new protocal, SMB is deprecated after win server 2003. ref

UBUNTU AS SERVER

sudo apt-get install -y samba samba-vfs-modules

CONFIG UBUNTU SERVER FOR GUEST/ANANOMOUS (NO PASSWOR......