This time, it’s about limiting email certain user on Zimbra to only send email to local domain on certain domain. Edit /opt/zimbra/conf/zmconfigd/smtpd_recipient_restrictions.cf and add below line after permit_sasl_authneticated check_sender_access lmdb:/opt/zimbra/postfix/conf/restricted_senders Edit /opt/zimbra/conf/zmconfigd.cf file and add line below at postfix groups…
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Redis Slave Replication Issue; State wait_bgsave
On our redis replication with sentinel using 3 nodes, we have issue with error below in slave each time the redis sync RDB files;==5550:S 16 Apr 2021 19:58:53.654 # I/O error trying to sync with MASTER: connection lost==Replication info shows==127.0.0.1:6379>…
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Replace Degraded Zfs Pool Disk (Raid 1 -up) Proxmox
In case you have a Proxmox hypervisor using zfs raid filesystem and want to replace the disk when disk already reach the wear-out(ssd), or uncorrectable value in smartctl is highly unacceptable or the disk already reach maximum capacity. You can…
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Migrate VM Betwen Proxmox host Using Zfs
For Proxmox with zfs filesystem, we can utilize zfs to migrating a VM to another Proxmox host with minimal downtime. As long the target also use zfs file sistem. You can read more about zfs on this link. With pipe…
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Automated Cloud SQL export to Cloud Storage (Updated)
One of my costumers have a production environment in GCP. We helped them to migrate from on premises to GCP. We have setup the automated backup for their Cloud SQL for mysql 5.7 instances. Since the cloud sql backup using…