Bloomberg Comdb2 安全漏洞

Bloomberg Comdb2 is a Bloomberg open source distributed relational database management system. A security vulnerability exists in Bloomberg Comdb2 version 8.1 that stems from vulnerability to denial-of-service attacks when handling distributed transactional heartbeats...

Problem with the memory dump on MPX

Platform details exec: show ns hardware Platform: NSMPX-8900 8CPU+32GB+4F1X+6E1K+1E1K+1COL 8955 30010 Manufactured on: 8/7/2021 CPU: 2100MHZ Host Id: xxxxxxxx Serial no: xxxxxxxx Encoded serial no: xxxxxxxxxx Netscaler UUID: xxxxxxxxxxxx BMC Revision: 4.61 Pasting ns.log.2 output for cleaner logs...

NetScaler HA interface report "No HA heartbeats"

The customer saw "No HA heartbeats" on two NetScaler HA nodes' interfaces...

[NetScaler] HA Full Sync may cause Heartbeats missing

In a NetScaler HA High Availability setup, you may observe the following issues: HA Full sync can cause both nodes report peer node DOWN due to heartbeats missing. A new command propagation can cause HA Full sync again, and also leads node DOWN. The issue happens when all of the following trigger...

How To Troubleshoot And Fix The Situation When The ADM HA Is Not Working

One of the possible error conditions reported in the deployment is where in the GUI System - Deployment the following symptoms are reported: Heartbeats are not received from the secondary Data synchronization has failed on secondary Apart of the information displayed in GUI on primary node, there...

Processes, Logs And Configuration Files Participating in Citrix ADM High Availability

The following processes participate in Citrix ADM HA operations: /usr/local/bin/python /mps/mashbmonit.py This process is run by both nodes. It is responsible for sending and receiving heartbeats and healthchecks. By default, it uses UDP port 5005. The configuration file for this process...

Encrypted, Anti-Replay, Multiplexed Udp Tunnel: Udp2raw-tunnel

A UDP Tunnel which tunnels UDP via FakeTCP/UDP/ICMP Traffic by using Raw Socket, helps you Bypass UDP FireWalls or Unstable UDP Environment. Its Encrpyted, Anti-Replay and Multiplexed. It also acts as a Connection Stabilizer. Features Send / Receive UDP Packet with fake-tcp/icmp headers...

High Availability Failovers Due to Missed HA HeartBeats of NetScaler VPX on VMware ESX Hypervisor

NetScaler VPX on VMWare hypervisor High Availability failsover due to missed HA heartbeats. Note : This article only pertains to NetScaler VPX on VMWare hypervisor. Background Root cause of the HA failovers is missing heartbeats due to VPX scheduling issues on the VMware host. The NetScaler’s...