280篇 Default中的文章
git clone的时候，填错密码，再次git clone也不会提示输密码，表现如下
$ git clone https://wwww.git www
Cloning into 'www'...
remote: Coding 提示: Authentication failed.
remote: 认证失败，请确认您输入了正确的账号密码。
fatal: Authentication failed for 'https://wwww.git/
原因是 windows将密码信息保存在本地。需要这样处理
Control Panel\All Control Panel Items\Credential Manager
即 控制面板 > 用户账户 > 管理你的凭据 > Windows凭据
在Windows Credentials中找到git地址，编辑密码即可。
1 check the latest docker-compose version
https://github.com/docker/compose/releases
2 run the command
curl -L https://github.com/docker/compose/releases/download/1.25.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
chmod +x /usr/local/bin/docker-compose
ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
3 here we go.
docker-compose --version
if [ -z ${var+x} ]; then
echo "var is unset";
else
echo "var is set to '$var'";
fi
var is the variable name,
To check for non-null/non-zero string variable, i.e. if set, use
if [ -n "$1" ]
if [ -n "$1" ]; then
echo "You supplied the first parameter!"
else
echo "First parameter not supplied."
fi
https://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash
Sample:
api-login-103923
to get the api
echo "api-login-103923"|cut -d"-" -f1
-d is the seprator
-f is the index , starting from 1
brew services stop mongodb
brew uninstall mongodb
brew tap mongodb/brew
brew install mongodb-community
brew services start mongodb-community
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有段时间我用ssh远程登录后发现，有一串字符提示，大致意思的使用密码登录失败了几千次。登录的IP也是国内的国外都有。
看起来黑客想搞我的虚拟机，是在不断尝试啊。
目前在一家网络安全公司，虽说岗位不是安全研究之类的，但是一些安全意识也是增强不少，想起来是时候来关起门来了，把虚拟机一些整一下。
这里主要是sshd的配置文件/etc/ssh/sshd_config修改。
PermitRootLogin no
禁用之后新建账号，以后用新建的账号远程登录，再切回root。
useradd aliang
passwd aliang
Port 2222
一般也会被扫出来，只是让黑客能多费点事。
MaxAuthTries 3
LoginGraceTime 30
PasswordAuthentication no
AuthorizedKeysFile .ssh/authorized_keys
生成密钥方法下一篇文章再说。
https://www.ibm.com/developerworks/cn/aix/library/au-sshlocks/index.html
Summary omitted as the content was protected by password.
一行命令更新旧的pip包
pip list --outdated --format freeze|awk -F'=' '{print $1}'|xargs pip install --upgrade
~/.pip/pip.conf 配置参考：
[global]
index-url = https://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com
build setting中搜索 ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME，并清空值