Welcome to DBCloudSVC!
Login
  • About…
    Welcome to DBCloudSVC!
    Login

    Database & Cloud Database & Cloud

    Finding the right solutions

    bj
    Login
    • About…
      • Default
      • Google
      • Bing

      Search hotspot

      HomeLinux
      Sorting
      Date
      Date
      Random
      Buzz
      Hot
      Like

      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
      Read More...

      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
      Read More...

      Some nodes failed to boot after kernel batch upgrade

      Today my friend upgraded some nodes and a small part of them failed to boot after the upgrade.He checked such systems and reinstall the new installed kernel, then reboot them and we could enter th...
      NeilZhang 10/03/2020Linux978 viewsCommentsdracut fail
      Read More...

      Failed to boot after kernel upgrade

      Last night we upgraded some servers and one of them could not be accessed using SSH. I checked it on the vCenter and found it entered emergency mode and showed some messages on the screen.The erro...
      NeilZhang 09/01/2020Linux146 viewsCommentsgrub upgrade
      Read More...

      segfault and error 4 in libc-2.12.so

      These days I helped to troubleshoot a RedHat Cluster issue.When we run command 'service cman start' we would get a 'FAILED' result and from the /var/log/messages I found below similar error messag...
      NeilZhang 26/10/2019Linux2,225 viewsCommentslibc segfault
      Read More...

      Multiple version issue of glibc-common package on RHEL systems

      These days we are doing some maintenance tasks on hundreds of RHEL servers and we update them using a shell script. We failed to update part of them and after I fixed the failure I would like to share...
      NeilZhang 19/10/2019Linux503 viewsCommentsglibc-common package-cleanup
      Read More...

      How to display the obsoleted packages and versions of a RPM?

      These days I patched some servers using a standard script and it run successfully on most nodes until last night.It failed on two nodes and the primary issue was about the python34 package.I g...
      NeilZhang 11/10/2019Linux175 viewsComments
      Read More...

      Xntpd restarted due to no time server selected

      Handled a ntp issue these days and I want to share my learning here as I could not find the right and detail explanation until now.The error message was like the title and when I checked the ntp s...
      NeilZhang 21/08/2019Unix256 viewsCommentsntp xntp
      Read More...

      The difference between IP address and Hostname when creating SSH User Equivalency

      I provided a 12c RAC step-by-step installation guide to client and he got issue during the deployment. Be specific, he failed the SSH User Equivalency: [grid@rac122-1 ~]$ ssh -o FallBackToRsh=no -o P...
      NeilZhang 16/07/2019Linux128 viewsCommentsEquivalency ssh
      Read More...

      VirtualBox VM caused system hung after laptop upgrade

      In last week I upgraded my laptop from T420s to E485 to get maximum 32G memory also because the T420s was so old and the cooling system worked inefficiently, so during the summer it would become slowe...
      NeilZhang 10/06/2019Linux129 viewsCommentstfa virtualbox
      Read More...

      Posts navigation

      1 2 3 4

      添加小工具

      点此为“分类归档侧边栏”添加小工具
      Copyright © DBCloudSVC All rights reserved.
      Database & Cloud

      Register

      Login

      Retrieve password

      注册登录即视为同意以上条款

      Database & Cloud™


      Registration confirmation email to you
      Login
      Register
      Retrieve password
      Username or Email Address


      Send registration information by email
      Login
      • 繁
      • Database & Cloud

        Qr code