ssh.sh_for_ubuntu1404
#!/bin/bashsed-i's/PermitRootLoginwithout-password/PermitRootLoginyes/g'/etc/ssh/sshd_configsed-i's/#PasswordAuthenticationyes/PasswordAuthenticationyes/g'/etc/...
ssh.sh_for_ubuntu1604
#!/bin/bashsed-i's/PermitRootLoginprohibit-password/PermitRootLoginyes/g'/etc/ssh/sshd_configsed-i's/#PasswordAuthenticationyes/PasswordAuthenticationyes/g'/etc...
ssh.sh_for_centos
#!/bin/bashsed-i's/#PermitRootLoginyes/PermitRootLoginyes/g'/etc/ssh/sshd_configsed-i's/#UseDNSyes/UseDNSno/g'/etc/ssh/sshd_configsed-i's/GSSAPIAuthenticationye...
cloud.cfg_for_ubuntu
user:defaultdisable_root:falsepreserve_hostname:falsecloud_init_modules:-bootcmd-resizefs-set_hostname#-update_hostname-update_etc_hosts-ca-certs-rsyslog-sshclo...
cloud.cfg_for_centos
users:-defaultdisable_root:0ssh_pwauth:1locale_configfile:/etc/sysconfig/i18nmount_default_fields:[~,~,'auto','defaults,nofail','0','2']resize_rootfs_tmp:/devss...
python /usr/bin/python^M: bad interpreter: No such file
今天在WingIDE下写了个脚本，传到服务器执行后提示：-bash:/usr/bin/autocrorder:/usr/bin/python^M:badinterpreter:Nosuchfileordirectory分析：这是不同系统编码格式引起的：在windows系统中编辑的.sh.py文件可能有不可见字符，所以在...
neutron floating ip 限速
查看浮动ip的id[root@10e131e69e14oz]#openstackfloatingipshow36.111.0.197+---------------------+--------------------------------------+|Field|Value|+------------------...
heat creating first stack
可以用自带的模板生成一个实例，实例包含一些软件，比如WordPress博客系统等[root@armstrong~(keystone_demo)]#openstackstackcreate-thttp://git.openstack.org/cgit/openstack/heat-templates/plain/hot/...
Before an Exam
题目：http://codeforces.com/problemset/problem/4/B题解：有d组minmax值以及一个sum值，现在要求d个介于min和max之间的数，让其和为sum。此题可以先从sum中减去所有的min，然后对剩下的值进行处理，对其分配时不能超过每一对max-min的值，如果能全部分完，则满...