How to Adjust the Bond Balance Interval in XenServer 6.x

XenServer 6.1.0 introduces a change to the NIC bonding load balancing algorithm for active-active bonds in the vSwitch network stack. In past releases, active-active bonds were set to rebalance load every 10 seconds. However, in XenServer 6.1.0 active-active bonds on the vSwitch rebalance load...

Unable to Bind Provisioning Services TFTP Service to Multiple NICs

Target devices on different non-routable VLANs are unable to connect to the Provisioning Services PVS server that has a NIC bound to each of the non-routable VLANs...

High Availability Setup on Amazon Web Service

This article describes the design perspective of High Availability HAon Amazon Web Service AWS environment. Background AWS does not support Gratuitous Address Resolution Protocol GARP, Virtual Local Area Network VLAN or any Layer-2 L2 functionalities like bridging. Two virtual machines belonging ...

Air-Gapped Devices Can Send Covert Morse Signals via Network Card LEDs

A security researcher who has a long line of work demonstrating novel data exfiltration methods from air-gapped systems has come up with yet another technique that involves sending Morse code signals via LEDs on network interface cards NICs. The approach, codenamed ETHERLED, comes from Dr...

DHCP Server 2.5.2 - Denial of Service (PoC)

Exploit Title: DHCP Server 2.5.2 - Denial of Service PoC Discovery by: Victor Mondragón Discovery Date: 2019-04-16 Vendor Homepage: http://www.dhcpserver.de/cms/ Software Link: http://www.dhcpserver.de/cms/wp-content/plugins/download-attachments Tested Version: 2.5.2 Tested on: Windows 7 x32...

March 12, 2019—KB4489878 (Monthly Rollup)

March 12, 2019—KB4489878 Monthly Rollup Improvements and fixes This security update includes improvements and fixes that were a part of update KB4486565 released February 19, 2019 and addresses the following issues: Addresses an issue that may prevent the Event Viewer from showing some event...

December 11, 2018—KB4471330 (Monthly Rollup)

December 11, 2018—KB4471330 Monthly Rollup Note: Because of minimal operations during the holidays and upcoming Western new year, there won’t be any preview releases for the month of December 2018. Monthly servicing will resume with the January 2019 security releases. Improvements and fixes This...

October 9, 2018—KB4462929 (Monthly Rollup)

October 9, 2018—KB4462929 Monthly Rollup Improvements and fixes This security update includes improvements and fixes that were a part of update KB4457134 released September 20, 2018 and addresses the following issues: Security updates to Windows Media Player, Microsoft Graphics Component, Windows...

CentOS Update for kernel CESA-2017:1372 centos6

Check the version of kernel SPDX-FileCopyrightText: 2017 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription scriptoid"1.3.6.1.4.1.25623.1.0.882728";...

Moderate: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

Cluster nodes or VMs go offline when they are using VMQ capable NICs on a Windows Server 2012 R2 host

Cluster nodes or VMs go offline when they are using VMQ capable NICs on a Windows Server 2012 R2 host This article describes an issue in which all virtual machines VM go into failed state on a Windows Server 2012 R2 host and may not be migrated automatically to other cluster nodes. An update is...

Scientific Linux Security Update : kernel on SL 5.0-5.4 i386/x86_64

This kernel is already in SL 5.5 This updated contains all the security and bug fixes from the 2.6.18-194.el5 kernel. In additions this update fixes the following security issues : - a flaw was found in the Unidirectional Lightweight Encapsulation ULE implementation. A remote attacker could send ...

CentOS 5 : kernel (CESA-2010:0398)

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed...

RHEL 5 : kernel (RHSA-2010:0398)

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 5. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed...

Important: Red Hat Security Advisory: : New kernel 2.2 packages fix vulnerabilities

Updated kernel packages for Red Hat Linux 6.2 and 7.0 are now available that fix several security vulnerabilities. The Linux kernel handles the basic functions of the operating system. A bug in the kernel module loader code allows a local user to gain root privileges. The Common Vulnerabilities a...