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How can I remove specific rules from iptables?
...d temporary rule with some comment:
comment=$(cat /proc/sys/kernel/random/uuid | sed 's/\-//g')
iptables -A ..... -m comment --comment "${comment}" -j REQUIRED_ACTION
2. When the rule added and you wish to remove it (or everything with this comment), do:
iptables-save | grep -v "${comment}" | ip...
Is a GUID unique 100% of the time?
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Wouldn't they be called a UUID, then? ;)
– Arafangion
May 8 '09 at 6:23
30
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了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术
...在目标文件,则会引发异常。因此,此函数与 UNIX 中系统指定的 cp 命令并不等效。另外,此函数还预期 frompath 变量将引用正确的常规文件。请看以下示例:frompath 引用符号链接 /tmp/file1,而后者反过来引用文件 /tmp/file2;而 topat...
淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...页面,店铺服务条款页面,店铺试衣间页面,以及店铺内搜索界面这些界面更新不是非常频繁,因此适合放到缓存中,这样可以大大减低DB的负载。另外宝贝详情页面相对也更新比较 少,因此也适合放到缓存中来减低DB负载。
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Check if application is on its first run [duplicate]
....io.IOException;
import java.io.RandomAccessFile;
import java.util.UUID;
import android.content.Context;
public class Util {
// ===========================================================
//
// ===========================================================
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ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...可丢失这个事实而提供了可靠性保证。
ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑的,而不是发送给特定的终端节点。重新调用哪个与特定商务逻辑紧密相连的拓扑意味着当你发送消息给拓扑...
ZMQ: 基本原理 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...可丢失这个事实而提供了可靠性保证。
ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑的,而不是发送给特定的终端节点。重新调用哪个与特定商务逻辑紧密相连的拓扑意味着当你发送消息给拓扑...
ZMQ: 基本原理 - 开源 & Github - 清泛网移动版 - 专注C/C++及内核技术
...可丢失这个事实而提供了可靠性保证。
ØMQ抽象了指定发送数据到特定网络位置这样需求。消息是被发送到拓扑的,而不是发送给特定的终端节点。重新调用哪个与特定商务逻辑紧密相连的拓扑意味着当你发送消息给拓扑...
What does it mean: The serializable class does not declare a static final serialVersionUID field? [d
...have a host of things to worry about all centered around the proper use of UUID. Basically, the UUID is a way to "version" an object you would serialize so that whatever process is de-serializing knows that it's de-serializing properly. I would look at Ensure proper version control for serialized ob...
How to resize a VirtualBox vmdk file
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The UUIDs mismatch after doing this (and replacing the original drive). VirtualBox 5.1.12 won't update the UUID automatically. I had to remove the hard drive from the list of known hard drives (File -> Virtual Media Manager) a...
