资料来源 https://wiki.wireshark.org/Network_Lock_Manager 目的 The purpose of the NLM protocol is to provide something similar to POSIX advisory file locking semantics to NFS version 2 and 3. This protocol is closely tied with the NFS protocol itself since…

A distributed lock manager (DLM) provides distributed software applications with a means to synchronize their accesses to shared resources. DLMs have been used as the foundation for several successful clustered file systems, in which the machines in…

特别提醒:自行定制的内核,必須经过全方位测试无誤后,方能用于生产环境 基于:/usr/src/sys/amd64/conf/GENERIC cpu HAMMER ident TEST_kernel ##makeoptions DEBUG=-g # Build kernel with gdb() debug symbols:若不使用 Dtrace 可注释掉 ##makeoptions WITH_CTF= # Run ctfconvert() for DTrace support:若不使用 Dtra…

1.1 概述 类似ext家族.xfs格式的本地文件系统,它们都是通过单个文件名称空间(name space)来包含很多文件,并提供基本的文件管理和空间分配功能.而文件是存放在文件系统中(上述名称空间内)的单个命名对象,每个文件都包含了文件实际数据和属性数据.但是,这些类型的文件系统和其内文件都是存放在本地主机上的. 实际上,还有网络文件系统.顾名思义,就是跨网络的文件系统,将远程主机上的文件系统(或目录)存放在本地主机上,就像它本身就是本地文件系统一样.在Windows环境下有cifs协议实现的…

Context Managers 是我最喜欢的 python feature 之一,在恰当的时机使用 context manager 使代码更加简洁.清晰,更加安全,复用性更好,更加 pythonic.本文简单介绍一下其使用方法以及常见使用场景. 本文地址:https://www.cnblogs.com/xybaby/p/13202496.html with statement and context manager Python's with statement supports the co…

Load Balancer IPVS: http://kb.linuxvirtualserver.org/wiki/IPVS NAT: http://kb.linuxvirtualserver.org/wiki/LVS/NAT VIP: http://kb.linuxvirtualserver.org/wiki/VIP ARP: http://kb.linuxvirtualserver.org/wiki/ARP_Issues_in_LVS/DR_and_LVS/TUN_Clusters TUN:…

A method for optimizing the throughput of TCP/IP applications by aggregating user application data and consolidating multiple TCP/IP connection streams into a single optimized stream for delivery to a destination application. Optimization of the inte…

This application discloses methods for creating self-organizing networks implemented on heterogeneous mesh networks. The self-organizing networks can include a computing cloud component coupled to the heterogeneous mesh network. In the methods and co…

From Wikipedia, the free encyclopedia An overlay network is a computer network that is built on top of another network. Nodes in the overlay network can be thought of as being connected by virtual or logical links, each of which corresponds to a path…

在计算机网络OSI模型中,TCP端口完成第四层传输层所指定的功能.我们的电脑与网络连接的许多应用都是通过TCP端口实现的.本文与大家分享部分TCP端口的介绍. 21端口:21端口主要用于FTP(File Transfer Protocol,文件传输协议)服务. 23端口:23端口主要用于Telnet(远程登录)服务,是Internet上普遍采用的登录和仿真程序. 25端口:25端口为SMTP(Simple Mail Transfer Protocol,简单邮件传输协议)服务器所开放,主要用于发送…