以太网络最初是由全录公司 (Xerox PARC) 所建构出来的，而后透过 DEC, Intel 与 Xerox 合作将以太网络标 准化。 再经由 IEEE (Institute of Electrical and Electronic Engineers 注3) 这个国际著名的专 业组织利用一个 802 的项目制定出标准，之后有 19 家公司宣布支持 IEEE 所发布的 802.3 标准， 作动作，但如果程序与档案的 SELinux 类 型 (type) 不吻合时，那么该程序就无法读取该档案喔！ 此外，我们的 CentOS 也针对了某些常用的网络服务制 订了许多的档案使用规则 (rule)，如果这些规则没有启用， 那么即使权限、SELinux 类型都对了，该网络服务的 功能还是无法顺利的运作喔！ 根据这样的分析，我们可以知道，随时更新系统软件、限制联机端口以及透过启动 SELinux Dependencies 10.2. 7.2 网络自动升级软件 - 196 - 本文档使用 书栈(BookStack.CN) 构建 13. --> Running transaction check <==开始检查有没有相依属性的软件问题 14. ---> Package javacc.x86_64 0:4.1-0.5.el6 set to be updated 15. .

不输出第一列。 2. -2 不输出第二列。 3. -3 不输出第三列。 4. --check-order 检查输入行是否正确的排序，即使它们确实是已排序过的。 5. --nocheck-order 不检查输入行是否正确的排序。 6. --output-delimiter=STR Reset Hardware Security System Power Controls Voltage Probe Cooling Device Temperature Probe Electrical Current Probe Out-of-band Remote Access Boot Integrity Services System Boot 64-bit Memory Error registers) 20. PAE (Physical address extension) 21. MCE (Machine check exception) 22. CX8 (CMPXCHG8 instruction supported) 实例 dmidecode 在Linux系统下获取有关硬件方面的信息

Upgrade Guide Running pre-flight check (Required) Upgrading Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 deploy the “connectivity-check” to test connectivity between pods. It is recommended to create a separate namespace for this. kubectl create ns cilium-test Deploy the check with: kubectl apply -n cilium-test p75 1/1 Running 0 68s Note If you deploy the connectivity check to a single node cluster, pods that check multi- node functionalities will remain in the Pending state. This is expected

Upgrade Guide Running pre-flight check (Required) Upgrading Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 com/cilium/cilium- cli/releases/latest/download/cilium-linux-amd64.tar.gz{,.sha256sum} sha256sum --check cilium-linux-amd64.tar.gz.sha256sum sudo tar xzvfC cilium-linux-amd64.tar.gz /usr/local/bin rm cilium-linux-amd64 detected, will skip some flow validation steps � [k8s-cluster] Creating namespace for connectivity check... (...) ----------------------------------------------------------------------- ----------------

pre-flight check (Required) Upgrading Micro Versions Upgrading Minor Versions Step 3: Rolling Back Version Specific Notes Advanced Configuration Network Policy Policy Enforcement Modes Rule Basics Layer 1/1 Running 0 13m Deploy the connectivity test You can deploy the “connectivity-check” to test connectivity between pods. kubectl apply -f https://raw.githubusercontent.com/cilium/cilium/v1 1/1 Running 0 13m Deploy the connectivity test You can deploy the “connectivity-check” to test connectivity between pods. kubectl apply -f https://raw.githubusercontent.com/cilium/cilium/v1

Upgrade Guide Running pre-flight check (Required) Upgrading Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 deploy the “connectivity-check” to test connectivity between pods. It is recommended to create a separate namespace for this. kubectl create ns cilium-test Deploy the check with: kubectl apply -n cilium-test 7 1/1 Running 0 66s Note If you deploy the connectivity check to a single node cluster, pods that check multi- node functionalities will remain in the Pending state. This is expected

Guide Running pre-flight check (Required) Upgrading Cilium Step 3: Rolling Back Version Specific Notes Advanced Configuration Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 1/1 Running 0 13m Deploy the connectivity test You can deploy the “connectivity-check” to test connectivity between pods. kubectl apply -f https://raw.githubusercontent.com/cilium/cilium/v1 1/1 Running 0 13m Deploy the connectivity test You can deploy the “connectivity-check” to test connectivity between pods. kubectl apply -f https://raw.githubusercontent.com/cilium/cilium/v1

Upgrade Guide Running pre-flight check (Required) Upgrading Cilium Version Specific Notes Advanced Configuration Core Agent Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer cli/releases/download/${CILIUM_CLI_VERSION}/cilium- linux-${CLI_ARCH}.tar.gz{,.sha256sum} sha256sum --check cilium-linux-${CLI_ARCH}.tar.gz.sha256sum sudo tar xzvfC cilium-linux-${CLI_ARCH}.tar.gz /usr/local/bin detected, will skip some flow validation steps � [k8s-cluster] Creating namespace for connectivity check... (...) ----------------------------------------------------------------------- ----------------

Rolling Back Version Specific Notes Advanced Configura�on Network Policy Policy Enforcement Modes Rule Basics Layer 3 Examples Layer 4 Examples Layer 7 Examples Kubernetes Endpoint Lifecycle Troubleshoo�ng correctly, a DNS reverse lookup on a pod IP must map back to pod name. If you are using CoreDNS, check the CoreDNS ConfigMap and validate that in-addr.arpa and ip6.arpa are listed as wildcards for the create 2 separate CloudFormation stacks for cluster itself and th [ℹ] if you encounter any issues, check CloudFormation console or try 'eksc [ℹ] creating cluster stack "eksctl-ridiculous-gopher-1548608219-cluster"

. . . . . . . . . . 98 14.10 Delete a rule based on rule number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 14.11 Delete a rule directly . . . . . . . . . . . . . . . . You can chain the flags, so instead of rm -r -f you can as well type rm -rf. But, always double check before you use rm -rf command, if you by mistake give this command in your home directory, or any deleting your user account) as root (by mistake), that can easily cause real damage. The general rule is, when you need superuser power, use the sudo command to get work done, and use your normal user