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服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...那些TIME_WAIT的资源。
下面来看一下我们网管对/etc/sysctl.conf文件的修改：
#对于一个新建连接，内核要发送多少个 SYN 连接请求才决定放弃,不应该大于255，默认值是5，对应于180秒左右时间
net.ipv4.tcp_syn_retries=2
#net.ipv4.tcp_synac...
django unit tests without a db
...n defined in parent class """
pass
def teardown_databases(self, old_config, **kwargs):
""" Override the database teardown defined in parent class """
pass
Create a custom settings:
from mysite.settings import *
# Test runner with no database creation
TEST_RUNNER = 'mysite.scripts....
“Connection for controluser as defined in your configuration failed” with phpMyAdmin in XAMPP
...text from create_tables.sql into the text box, and run the query.
Open the config.inc.php file in the phpMyAdmin install directory, and add the following lines (or change the existing settings if they are already there):
$cfg['Servers'][1]['pmadb'] = 'phpmyadmin';
$cfg['Servers'][1]['controluser'] ...
what is .netrwhist?
...s/common/explode'
let g:netrw_dirhist_6='/Users/wolever/Sites/massuni-wiki/conf'
netrw_dirhistmax indicates the maximum number of modified directories it stores in the history file. ie Max History Size. netrw_dirhist_cnt indicates the current history count of modified directories.
If you want to ...
In tmux can I resize a pane to an absolute value
... doesn't work using tmux 1.9 It resizes but not to the correct value. My conf: set -g default-terminal "screen" new splitw -v selectp -t 0 resize-pane -t 0 -y 5 set -g status off Its almost like tmux has a minimum value or something for auto setting the rows during load.
–...
No visible cause for “Unexpected token ILLEGAL”
... The solution, as per this blog post is to set sendfile off; in your nginx config, or EnableSendfile Off if you use Apache.
It's also been reported that code pasted from the Chrome developer tools may include that character, but I was unable to reproduce that with the current version (22.0.1229.79 ...
SSL handshake alert: unrecognized_name error since upgrade to Java 1.7.0
... SNI support which is enabled by default. I have found out that certain misconfigured servers send an "Unrecognized Name" warning in the SSL handshake which is ignored by most clients... except for Java. As @Bob Kerns mentioned, the Oracle engineers refuse to "fix" this bug/feature.
As workaround, ...
Command to change the default home directory of a user
...er readers look for information on the adduser command.
Edit /etc/adduser.conf
Set DHOME variable
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Mysql adding user for remote access
... Very useful. Just a comment. my.cnf could be including another configuration file so the relevant line may be somewhere else. In my.cnf look for a line beginning with !include, if bind-address is not in my.cnf it could be located in that included file.
– tru7
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How to enable C++11 in Qt Creator?
...
According to this site add
CONFIG += c++11
to your .pro file (see at the bottom of that web page). It requires Qt 5.
The other answers, suggesting
QMAKE_CXXFLAGS += -std=c++11 (or QMAKE_CXXFLAGS += -std=c++0x)
also work with Qt 4.8 and gcc / cla...