NeilZhang

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...

14/11/2022Life3 viewsComments

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...

06/11/2021Program86 viewsComments

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...

26/08/2021Oracle179 viewsComments

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...

07/08/2021Kubernetes1,109 viewsComments

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...

09/07/2021Life195 viewsComments

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...

04/07/2021Oracle1,081 viewsComments

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...

10/11/2020Oracle4,421 viewsComments

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 ...

18/08/2020Life167 viewsComments

Some issues during the Oracle RAC installation on openSUSE 15.2

In last week, I installed an Oracle RAC on openSUSE 15.2 and got some issues. Although the installation was successful finally, it still took me much more time than the same thing on RHEL.I list t...

17/08/2020Oracle297 viewsComments

IPv6 in DSM worked finally

For a long long time, I could not make the IPv6 in the DSM to work. I tried and did a lot of tests to resolve this issue but all of them failed.I did feel frustrated especially I had been upgraded...

17/08/2020Life110 viewsComments

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