<?xml version="1.0" encoding="utf-8" ?><rss version="2.0"><channel><title><![CDATA[jsjbdjhd的博客]]></title><description><![CDATA[]]></description><link>https://blog.youkuaiyun.com/jsjbdjhd</link><language>zh-cn</language><generator>https://blog.youkuaiyun.com/</generator><copyright><![CDATA[Copyright &copy; jsjbdjhd]]></copyright><item><title><![CDATA[MGRE实验]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/161544226</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/161544226</guid><author>jsjbdjhd</author><pubDate>Sat, 30 May 2026 16:24:20 +0800</pubDate><description><![CDATA[【代码】MGRE实验。]]></description><category></category></item><item><title><![CDATA[OSPF综合实验]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/161544481</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/161544481</guid><author>jsjbdjhd</author><pubDate>Sat, 30 May 2026 15:31:25 +0800</pubDate><description><![CDATA[【代码】OSPF综合实验。]]></description><category></category></item><item><title><![CDATA[BGP实验作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/161542826</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/161542826</guid><author>jsjbdjhd</author><pubDate>Sat, 30 May 2026 14:27:52 +0800</pubDate><description><![CDATA[AR1:AR2:AR3:AR4:]]></description><category></category></item><item><title><![CDATA[技术思维导图]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/160565308</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/160565308</guid><author>jsjbdjhd</author><pubDate>Mon, 27 Apr 2026 18:50:28 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[简单园区网实验拓扑]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/160411317</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/160411317</guid><author>jsjbdjhd</author><pubDate>Wed, 22 Apr 2026 16:28:55 +0800</pubDate><description><![CDATA[都是DHCP，不知道为啥最后没ping通，PC端也没有ip。]]></description><category></category></item><item><title><![CDATA[VRRP实验]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/160154110</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/160154110</guid><author>jsjbdjhd</author><pubDate>Tue, 14 Apr 2026 19:36:08 +0800</pubDate><description><![CDATA[配置：pc1：pc2：LSW3：LSW1：LSW2：]]></description><category></category></item><item><title><![CDATA[TCP思维导图]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/159958424</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/159958424</guid><author>jsjbdjhd</author><pubDate>Wed, 08 Apr 2026 15:12:15 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[vlan实验作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/159734119</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/159734119</guid><author>jsjbdjhd</author><pubDate>Wed, 01 Apr 2026 19:10:09 +0800</pubDate><description><![CDATA[一：实验要求二：实验图像三：代码：AR1:LSW1:LSW2:LSW3：]]></description><category></category></item><item><title><![CDATA[HCIA实验作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/159474042</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/159474042</guid><author>jsjbdjhd</author><pubDate>Wed, 25 Mar 2026 20:04:02 +0800</pubDate><description><![CDATA[pc1:pc2:http客户端：dns服务器：http服务器：LSW1:AR1:AR2:AR3:AR4:AR5:AR6:]]></description><category></category></item><item><title><![CDATA[第五次作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157886185</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157886185</guid><author>jsjbdjhd</author><pubDate>Sun, 15 Feb 2026 01:36:44 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[第四次作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157873014</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157873014</guid><author>jsjbdjhd</author><pubDate>Mon, 09 Feb 2026 00:29:01 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[第三次作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157872937</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157872937</guid><author>jsjbdjhd</author><pubDate>Mon, 09 Feb 2026 00:28:30 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[第二次作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157872743</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157872743</guid><author>jsjbdjhd</author><pubDate>Sun, 08 Feb 2026 15:39:46 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[第一次作业]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157872517</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/157872517</guid><author>jsjbdjhd</author><pubDate>Sun, 08 Feb 2026 15:19:22 +0800</pubDate><description><![CDATA[]]></description><category></category></item><item><title><![CDATA[优快云实验报告]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/155076891</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/155076891</guid><author>jsjbdjhd</author><pubDate>Thu, 20 Nov 2025 22:11:42 +0800</pubDate><description><![CDATA[4、R1、R2、R5上配置环回接口，但是R5环回接口不能宣告进ospf。1、整个网络ip地址为192.168.1.0/24，自己规划。2、area区域手工设置R1为DR、R2为BDR。3、R3-R5之间使用密文认证方式。]]></description><category></category></item><item><title><![CDATA[RIP实验报告]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/154887675</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/154887675</guid><author>jsjbdjhd</author><pubDate>Sun, 16 Nov 2025 01:00:34 +0800</pubDate><description><![CDATA[3、R1和R3连接的网络地址分别为192.168.1.0/24、192.168.2.0/24。2、连接路由器的线路网段为12.1.1.0/24、23.1.1.0/24。4、整个网络使用RIP达到全网可达。1、路由器上分别配置环回。]]></description><category></category></item><item><title><![CDATA[静态路由配置]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/154757266</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/154757266</guid><author>jsjbdjhd</author><pubDate>Thu, 13 Nov 2025 00:21:46 +0800</pubDate><description><![CDATA[链路：AR7与中间路由器采用“1000M主链路+100M备用链路”冗余设计，其余路由器间为单链路互联。- 路由器：AR3、AR4、AR5、AR7（核心路由设备）1、全网用192.168.1.0/24进行IP地址分配。4、R6与R7之间正常走1000M，备份走100M。2、R7作为DHCP服务器为PC分配IP地址。结果：配置有问题，ping的结果不全对。- 交换机：LSW1（终端接入设备）6、减少路由表数量，并避免环路产生。3、路由上均具备2个环回地址。- 终端：PC1、PC2。5、全网尽量负载均衡。]]></description><category></category></item><item><title><![CDATA[TCP/IP协议]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/153839145</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/153839145</guid><author>jsjbdjhd</author><pubDate>Fri, 24 Oct 2025 19:22:52 +0800</pubDate><description><![CDATA[TCP拥塞控制算法示意图[__LINK_ICON]：分别为慢启动阶段拥塞窗口变化示意图、拥塞避免阶段拥塞窗口变化示意图、出现超时丢包时拥塞窗口变化示意图以及快速恢复阶段拥塞窗口变化示意图。- TCP滑动窗口机制示意图[__LINK_ICON]：以下分别展示了窗口大小为4个段的滑动窗口示例、发送窗口和接收窗口的结构示意图，以及TCP交互中滑动窗口的实现机制图。- 快速恢复：若通过“重复确认”检测到丢包，会直接将阈值设为当前窗口的一半，窗口也设为该阈值，跳过慢启动直接进入拥塞避免，减少恢复时间。]]></description><category></category></item><item><title><![CDATA[别名、history、特殊字符以及用户和组配置文件]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/148212664</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/148212664</guid><author>jsjbdjhd</author><pubDate>Sun, 25 May 2025 19:45:07 +0800</pubDate><description><![CDATA[永久生效：将别名写入配置文件（如  ~/.bashrc  或  ~/.bash_profile ），修改后需执行  source ~/.bashrc  使配置生效。-  [] ：匹配括号内任一字符，如  [abc].txt  匹配  a.txt 、 b.txt 、 c.txt。-  || ：逻辑或，前一命令失败后执行后一命令（如  command || echo "Failed" ）。-  useradd ：创建新用户，如  useradd -m newuser （ -m  自动创建主目录）。]]></description><category></category></item><item><title><![CDATA[用户和组管理以及权限管理]]></title><link>https://blog.youkuaiyun.com/jsjbdjhd/article/details/148072492</link><guid>https://blog.youkuaiyun.com/jsjbdjhd/article/details/148072492</guid><author>jsjbdjhd</author><pubDate>Mon, 19 May 2025 19:36:12 +0800</pubDate><description><![CDATA[/etc/passwd：存储用户基本信息，每行记录一个用户，格式为 用户名:密码占位符:用户ID:组ID:用户说明:家目录:登录Shell。- /etc/shadow：存储用户密码等敏感信息，只有root用户可访问，格式为 用户名:加密密码:上次修改密码时间:密码最短有效期:密码最长有效期:密码警告期:密码不活动期:账号失效时间:保留字段。- /etc/group：存储用户组信息，格式为 组名:密码占位符:组ID:组成员  ，如 wheel:x:10:user1,user2。]]></description><category></category></item></channel></rss>