Measure storage performance on XenServer using dd ?

dd is a native linux command also available on XenServer that can be used to measure the performance of a block device like /dev/sda at a block level. We can use this command to troubleshoot storage performance issues within the Host as well as the guest while clubbing it with other tools like...

UAF vulnerability description-vulnerability warning-the black bar safety net

UAF Use After Freevulnerability is a memory corruption vulnerability,usually present in the browser. Recently,the browser's new version Added a series of controls,which also makes use of these vulnerabilities becomes more difficult. Nevertheless,they still seem to exist. This article mainly will ...

MS16-098: Description of the security update for Windows kernel-mode drivers: August 9, 2016

None None...

How to Collect Xcode Logs

You can collect system logs on iOS devices either by using iPhone Configuration Utility tool or Xcode. You can then email the files to Citrix support for help troubleshoot issues with apps...

HDX Insight Diagnostics and Troubleshooting Guide

Citrix ADM, formerly NetScaler MAS Introduction Prerequisites for Configuring HDX Insight Troubleshooting Issues Related to ICA parsing Error Counter details Checklist before Contacting Citrix Technical Support Information to collect before Contacting Citrix Technical support Known Issues...

Linux/x86-64 - Syscall Persistent Bind Shell + Multi-terminal + Password + Daemon Shellcode (83, 148

include include //| Exploit Title: Syscall Persistent Bind Shell + multi-terminal + password + daemon 83, 148, 177 bytes //| Date: 7/15/2016 //| Exploit Author: CripSlick //| Tested on: Kali 2.0 x86x64 //| Version: No Program Version, Only Syscalls Used //| email protected //| OffSec ID: OS-20614...

Linux/x86-64 - Syscall Persistent Bind Shell + (Multi-terminal) + Password + Daemon (83, 148, 177 bytes)

Linux/x86-64 - Syscall Persistent Bind Shell + Multi-terminal + Password + Daemon 83, 148, 177 bytes. Shellcode exploit for Linx86-64 platform include include //| Exploit Title: Syscall Persistent Bind Shell + multi-terminal + password + daemon 83, 148, 177 bytes //| Date: 7/15/2016 //| Exploit...

MS16-090: Description of the security update for Windows kernel-mode drivers: July 12, 2016

None None...

Troubleshooting Signature-Based Firewalls

Challenge Summary Data transfer is failing across a connection that is protected by an advanced firewall. The firewall uses signature-based detection. Relevant features may have names like antivirus, anti-spyware, intrusion prevention, or application control. Reported Firewalls This may affect an...

Troubleshooting Checklist: Users Cannot Browse Internal Websites in Secure Web

Do the following: Collect Secure Web client logs. If you see the following message in the logs, add valid DNS SUFFIXES for the corresponding internal domains on NetScaler: AG policy: Not Intercepting Check if Split tunnel is On or Off on the Netscaler Gateway under session policies: If On - Make...

Troubleshooting Checklist: Emails are not syncing in Secure Mail, or email folders are not found, or Secure Mail is prompting users for a password multiple times

Do the following: Run the Secure Mail Test troubleshooting tool that finds issues with Active Sync policy configurations. For details, see Secure Mail Test Application. Collect Exchange Server logs. For details, see the Microsoft documentation. Collect Secure Mail logs. In the Secure Mail logs, i...

SOL01837042 - Multiple Wireshark (tshark) vulnerabilities

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

No updates from gateway servers

Challenge No data come from the gateway servers. The Svc.VeeamGateSvc.log on the Gateway server default path C:\ProgramData\Veeam\Backup contains the following entry: Failed to establish target connection to endpoint: xxx.xxx.xxx.xxx:9999 where xxx.xxx.xxx.xxx points to the Veeam Managed Backup...

MS16-054: Description of the security update for 2007 Microsoft Office Suite: May 10, 2016

None None...

Secure Mail unable to send large files.

Having problems using Secure Mail client in sending large files greater than 7 to 10MB Verifyed the WM Logs and could see the following error , where by the mail is send to the Outbox ERROR 2Response contained WBXML content with contentLength=15 for activeSyncCommand=SendMail INFO 4SendMail -...

Backup to Data Domain fails with “Error: calling system(), returns nonzero. Err: 5040 Failed to connect to storage.”

Challenge During the "preparing storage for backup" phase of a Veeam backup job to a Data Domain, the job fails, displaying the following error message: Error: calling system, returns nonzero. Err: 5040 Failed to connect to storage Cause The Data Domain chooses to use a different NIC than...

How to Troubleshoot Multiple HBA Cards Issue in XenServer

How to troubleshoot multiple HBA Cards issue...

MS16-042: Description of the security update for Office Web Apps Server 2013: April 12, 2016

None None...

Troubleshooting pointers for TCP monitor showing DOWN

How to troubleshoot an issue related to TCP monitor down reported for services configured on NetScaler...

Failback That Was Canceled or Failed Results in CID Mismatch

Challenge In rare situations, if a VMware Replication Failback to Original VM fails or is canceled, the original VM may be left in a 'consolidation needed' state and cannot be powered on or consolidated because of errors such as: The parent virtual disk has been modified since the child was creat...