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      NeilZhang
      NeilZhang

      NeilZhang

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      Install Docker CE on Oracle Linux 7

      It is a really easy task while I cannot find a complete command list to finish it, so I list the commands here to help others having similar request. yum install -y yum-utils device-mapper-persistent...
      NeilZhang 16/08/2023Linux0 viewsComments
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      Downgrade the Jenkins to a lower version

      Several weeks ago, One of our guys pressed the 'Upgrade' button of Jenkins, and after that it could not work any more.Of course he should not do this as he totally did not know the result, while I...
      NeilZhang 08/08/2023Linux0 viewsCommentsdowngrade jenkins
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      Migrate OS from CentOS to Ubuntu

      I have used CentOS for years and now I have to consider to master Ubuntu. Most commands could be found on both OS and they do share lots of concepts, while there are some differences and even I cannot...
      NeilZhang 14/11/2022Life23 viewsComments
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      Let the ssh-agent choose the right key for different GitHub accounts

      I tried to clone several repositories in two different GitHub accounts and I found even such simple task took me several hours and the main issue was that the ssh-agent always provided the cached keys...
      NeilZhang 06/11/2021Program126 viewsCommentsGitHub ssh-agent
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      Could I ignore the SID clause in command ‘alter system’?

      When we change the parameters in the RAC systems, I always recommend to specify the SID clause clearly, which means you know which or all instances will be modified.If you ignore it, the result wi...
      NeilZhang 26/08/2021Oracle275 viewsCommentsparameter spfile
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      Create Kubernetes 1.21.0 on Ubuntu 18.04

      These days I created a K8s 1.21.0 cluster on Ubuntu 18.04 to prepare the CKA exam, and found there are some tips which could be shared here.To make it simple, the cluster is based on CRI-O contain...
      NeilZhang 07/08/2021Kubernetes1,358 viewsCommentsK8s Kubernetes
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      Fix the oxc000007b error on windows 10

      My nephew installed Battlefield 1 on his laptop while he always got 'oxc000007b' error when he launched it. Usually I would like not to deal with personal Windows machines as a variety of software cou...
      NeilZhang 09/07/2021Windows253 viewsCommentsoxc000007b windows 10
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      How to recreate the lost ASM password in Oracle Clusterware?

      Last night my friend called me to check the network service issue after she added two SCAN IPs to one RAC system.She added these two IPs to resolve load balance issue as the customer found the con...
      NeilZhang 04/07/2021Oracle1,554 viewsCommentsASM Clusterware
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      How to fix permission issues of Oracle RAC?

      In last month, one engineer of our customers made a mistake and changed the file permissions of the whole RAC database wrongly, including GI and DB home.Of course the clusterware could not be star...
      NeilZhang 10/11/2020Oracle5,811 viewsCommentsCluster GI
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      Print spooler failed to start with error 0x800706b9

      Could not believe it took me more than 3 hours to just install a printer!Just now helped one relative to install HP printer on Sureface and always failed. At the beginning the driver could not be ...
      NeilZhang 18/08/2020Life196 viewsComments0x800706b9 print spooler
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