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Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注C++内核技术
...的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication mes...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication mes...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注C/C++及内核技术
...的Linux缺省使用Syslog，其配置大致如下所示：
shell> cat /etc/syslog.conf
# Log all kernel messages to the console.
# Logging much else clutters up the screen.
# kern.* /dev/console
# Log anything (except mail) of level info or higher.
# Don't log private authentication mes...
Is a `=default` move constructor equivalent to a member-wise move constructor?
...a members are ignored.
See also the example in 12.6.2. —end note ] The order of
initialization is the same as the order of initialization of bases and
members in a user-defined constructor (see 12.6.2). Let x be either
the parameter of the constructor or, for the move constructor, an
xva...
What is a memory fence?
...
For performance gains modern CPUs often execute instructions out of order to make maximum use of the available silicon (including memory read/writes). Because the hardware enforces instructions integrity you never notice this in a single thread of execution. However for multiple threads or en...
What is the difference between UTF-8 and Unicode?
... In November 2003, UTF-8 was restricted by RFC 3629 to end at U+10FFFF, in order to match the constraints of the UTF-16 character encoding. This removed all 5- and 6-byte sequences, and about half of the 4-byte sequences."
– Mooing Duck
Mar 24 '15 at 17:14
...
XSD - how to allow elements in any order any number of times?
...n the schema you have in your question, child1 or child2 can appear in any order, any number of times. So this sounds like what you are looking for.
Edit: if you wanted only one of them to appear an unlimited number of times, the unbounded would have to go on the elements instead:
Edit: Fixed type...
What's the purpose of SQL keyword “AS”?
...ProductRetailPrice,
O.Quantity
FROM Products AS P
LEFT OUTER JOIN Orders AS O ON O.ProductID = P.ProductID
WHERE O.OrderID = 123456
Example 3
It's a good practice to use the AS keyword, and very recommended, but it is possible to perform the same query without one (and I do often).
SELE...
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
...ting-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
[base]
name=CentOS-$releasever - Base - mirrors.aliyun.com
failovermethod=pr...
What's the difference between SoftReference and WeakReference in Java?
...
In Java; order from strongest to weakest, there are: Strong, Soft, Weak and Phantom
A Strong reference is a normal reference that protects the referred object from collection by GC. i.e. Never garbage collects.
A Soft reference i...