Currently, I use mysqldump to backup several large MySQL databases amounting to millions of rows of data. During the dump process, tables get locked for reading. 99% of the time, this system works just fine.
Ever so often (perhaps every 50-100 dumps), a read lock will hang on a table. This prevents all […]

Categories: Software

Sun Microsystems announced 3 new security updates yesterday.

Security Vulnerability With Java Web Start May Allow Application to Escalate Privileges
Cross-site Scripting Vulnerability (XSS) Affecting Pages Generated with JavaDoc Tool
libpng(3) Contains a Denial of Service (DoS) Vulnerability

Categories: Security Updates

Sun Microsystems announced four new security updates this morning.

A Security Vulnerability in the TCP Loopback/Fusion Code May Lead to a System Hang Resulting in a Denial of Service (DoS)
dtsession(1X) Contains a Buffer Overflow Vulnerability
Security Vulnerability in the Kerberos Administration Daemon (kadmind(1M)) May Lead to Arbitrary Code Execution
Security Vulnerabilities in the KSSL Kernel Module May Lead […]

Categories: Security Updates

Red Hat announced one new security update last night.
RHSA-2007:0559 Important: cman security update
This update fixes one vulnerability in the cman packages for Red Hat Enterprise Linux 5. A local attacker could connect to the Cluster Manager daemon and trigger a static buffer overflow leading to a Denial of Service (DoS) or escalation of privileges […]

Categories: Security Updates

Robin Gareiss of Nemertes Research has a put together a nice list of questions for potential WAN providers. Most of the questions are focused on non-technical issues like billing and customer service. In fact, the most technical question in the list is

How many classes of service do you provide for MPLS?

Personally, I’ve never […]

Categories: Networking