Notice of Scheduled Maintenance for MTA System – August 2, 2025. Service: Email Service
Status Scheduled.
Estimated finish 03/08/2025 00:00:00
DDoS toward Singapore Datacenter
Resolved Fault / IssueScheduled on 25/06/2025 00:54:00Estimated finish 25/06/2025 02:03:00
1. Impact: Services and systems located in the Singapore cluster were inaccessible during the affected period.
2. Root cause: The Singapore Datacenter was hit by a UDP Attack targeting vHost's random IPs, with a volume of approximately 10Gbps of bandwidth per second and 1 million packets per second.
3. Prevention Action: vHost has temporarily blocked UDP traffic to stabilize services for other customers.
We sincerely apologize for any inconvenience this incident may have caused.
Related servers / services:
Server: s103.vhost.vn, sin01.vhost.vn, ns2 (Singapore), and several other nodes in Singapore.
Date
Action
25/06/2025 03:07:00
At 03:07 AM on the same day, vHost confirmed that the attack had ceased. As a result, UDP traffic blocking was lifted.
All services have now resumed normal operation and are stable.
In case you need further support, please contact vHost through the following channels: