/etc/sysconfig/clock is removed after yum update in Amazon Linux 2


Simple version: If you follow AWS guide Setting the Time for Your Linux Instance to use /etc/sysconfig/clock to configure the timezone in Amazon Linux 2, you may not be able to find it after a yum update. So the suggested way to adjust time is to use timedatectl. For example: sudo timedatectl set-timezone Australia/Sydney Detailed … Continue reading /etc/sysconfig/clock is removed after yum update in Amazon Linux 2

LDAP: error code 11 – This search operation has checked the maximum of 5000 entries for matches]


We have a Jenkins box that use OpenDJ as the LDAP authenticator. And recently we migrated the ldif data from the old OpenDJ to a new OpenDJ server, and reconfigured the Jenkins to use the new box. After that, the Jenkins authentication stops working. I noticed this message in the Jenkins log. It looks like … Continue reading LDAP: error code 11 – This search operation has checked the maximum of 5000 entries for matches]

Error response from daemon: error unmarshalling content: unexpected end of JSON input


It happened the other day that one user reported that he was unable to pull a docker image from an internal registry. So I tried from my laptop, it looked fine at the first beginning. There were a few downloading processed going on, but it threw the error¬†unknown blob at the end. So I tried … Continue reading Error response from daemon: error unmarshalling content: unexpected end of JSON input