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OpenSSH升级后不能登录的问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...级过程很顺利
具体情况这里http://pkgs.org/centos-6/ghettoforge-testing-x86_64/openssh-6.6.1p1-4.gf.el6.x86_64.rpm.html
备份原有源
cd /etc/yum.repos.d/
mv rhel-source.repo rhel-source.repo.bak
mv packagekit-media.repo packagekit-media.repo.bak
配置源
vi CentOS-Base.repo
...
What is the difference between float and double?
...an double for something simple, e.g. computing the factorial of 60.
During testing, maybe a few test cases contain these huge numbers, which may cause your programs to fail if you use floats.
Of course, sometimes, even double isn't accurate enough, hence we sometimes have long double[1] (the above ...
MySQL SELECT only not null values
...e for each column. That may possibly be avoided by the below but I haven't tested this in MySQL.
SELECT CASE idx
WHEN 1 THEN val1
WHEN 2 THEN val2
END AS val
FROM your_table
/*CROSS JOIN*/
JOIN (SELECT 1 AS idx
UNION ALL
...
PHP session lost after redirect
...use exit();)
Make sure cookies are enabled in the browser you are using to test it on.
Ensure register_globals is off, you can check this on the php.ini file and also using phpinfo(). Refer to this as to how to turn it off.
Make sure you didn't delete or empty the session
Make sure the key in your $...
How do I write a bash script to restart a process if it dies?
...
@TomášZato you can do the above loop without testing the process' exit code while true; do myprocess; done but note that there is now no way to stop the process.
– lhunath
Jan 19 '14 at 1:57
...
i18n Pluralization
...gt; 4) %>
Updated answer for languages with multiple pluralization (tested with Rails 3.0.7):
File config/initializers/pluralization.rb:
require "i18n/backend/pluralization"
I18n::Backend::Simple.send(:include, I18n::Backend::Pluralization)
File config/locales/plurals.rb:
{:ru =>
...
How can I create download link in HTML?
...ease omit the "target='_blank'", since that won't work in IE. Did you even test it?
– Tara
Dec 21 '14 at 21:39
4
...
What underlies this JavaScript idiom: var self = this?
...nctions.
In instances where we would have used var self = this:
function test() {
var self = this;
this.hello = "world";
document.getElementById("test_btn").addEventListener("click", function() {
console.log(self.hello); // logs "world"
});
};
We can now use an arrow func...
How to get the browser viewport dimensions?
...
different screen size variables/solutions live test: ryanve.com/lab/dimensions
– Alex Pandrea
Jun 4 '19 at 11:34
...
Determine command line working directory when running node bin script
...rom your module directory you need to use relative paths.
require('../lib/test');
instead of
var lib = path.join(path.dirname(fs.realpathSync(__filename)), '../lib');
require(lib + '/test');
It's always relative to file where it called from and don't depend on current work dir.
...