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记一次SSH故障引发的思考分析

故障背景:在进行日常的网络维护时，我们遇到了一个问题：远程主机拒绝了SSH连接。具体表现为：这让我们不得不停下手头的工作，开始排查问题。故障分析：首先，我们需要确认SSH服务的状态。通过查看交换机的SSH服务状态，我们发现了问题所在：查看SSH服务状态：R01# show ip ssh 这表明SSH服务尚未启用，且需要生成至少768位的RSA密钥对才能启用。检查密钥对： 在这一步，我们发现没有生成任何RSA密钥对。这通常是因为交换机没有配置域名，导致无法生成密钥。检查SSH基础配置：我们需要检查...

emm9516_0-1721283387200.png emm9516_1-1721283415836.png emm9516_2-1721283438247.png emm9516_3-1721283556747.png
emm9516 by • Spotlight
  • 868 Views
  • 1 replies
  • 1 Helpful votes

Impact of Enabling FMC HA to FTD

Hi,Little bit of background. So we just got a new fmc to make our existing FMC HA. the issue is, our current FMC is already on production so its already manage more than 10 FTD, I want to know if there any impact on the FTD (like RTO or something) wh...

AIR-AP3802E-Q-K9 C9105AXI-Q Not Connected

Fujitsu Laptop A5511/G windows10 Intel(R) Wi-Fi 6 AX201by someone's specificationsThe access point isAIR-AP3802E-Q-K9 C9105AXI-QEven if we try to connect them, we are in trouble because there is no connection.They used to connect.The PC itself has th...

Translator by • Community Manager
  • 384 Views
  • 11 replies
  • 0 Helpful votes

AIR-AP3802E-Q-K9 C9105AXI-Q つながらない

富士通ノートパソコン A5511/G windows10 Intel(R) Wi-Fi 6 AX201の仕様でアクセスポイントはAIR-AP3802E-Q-K9 C9105AXI-Qでつなげようとしても、つながらなく困っております。以前はつながっていました。パソコン本体はドライバーも最新にしipv6は社内LANの関係、無効に設定しました。別のパソコンでもLZ-WA10/W1windows10intel IEEE802.11a/b/g/n/ac/axも急につながらなくなり、USBアダプターでつなぐ...

Access ASA for management

In a previous post I had a problem where the ASA or the rest of devices in the management vlan are accessable by VPN but not all at the same time (https://community.cisco.com/t5/network-management/can-access-hosts-in-management-vlan-either-or-asa-man...

mcgiga by • Level 1
  • 64 Views
  • 1 replies
  • 0 Helpful votes

Resolved! Issue with my OSPF and connectivity

Hi I'm new to the community and networking so kindly bare with me,I'm currently doing an assignment for my university, OSPF Routing. I've not done routing before but the assignment is is such that they gave a bunch of subnets and asked us to use them...

potsy017 by • Level 1
  • 164 Views
  • 4 replies
  • 0 Helpful votes

packages.conf file was deleted on bundle mode.

Hi guys.I think I got in a big trouble right now. I have some various switches (9500,9300,9200,3850..) and most of them are running as bundle mode.I wanted to convert them from bundle mode to install mode when upgrading their IOS. I saw the command "...

yum3372 by • Level 1
  • 85 Views
  • 2 replies
  • 0 Helpful votes

dpc3941b MAC Filter Settings

I'm trying to set up MAC filtering for a dpc3941b.In the dpc3941b MAC filter settings what is the difference between "Allow All" and "Allow"?Also, are there two different MAC lists, one for Allow and one for Deny?

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