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Read the original article at Don’t Miss Percona Live 2013
The biggest event on the MySQL calendar is the yearly Percona Live and it’s just around the corner. This year you’ll be able to pick from a whopping 110 technical sessions by 90 different speakers from companies like Facebook, Amazon, Google and Linkedin. Learn what’s happening at the cutting edge of open source database deployments. [...]
For more articles like these go to Sean Hull's Scalable Startups
Related posts:Read the original article at Why do people leave consulting?
As a long time freelancer, it’s a question that’s intrigued me for some time. I do have some theories… First, definitions… I’m not talking about working for a large consulting firm. Although this role may be called “consultant”, my meaning is consultant as sole proprietor, entrepreneur, gun for hire or lone wolf. 1. Make more [...]
For more articles like these go to Sean Hull's Scalable Startups
Related posts:I feel a sense of pride when I think that I was involved in the development and maintenance of what was probably the first piece of software accepted into Debian which then had and still has direct up-stream support from Microsoft. The world is a better place for having Microsoft in it. The first operating system I ever ran on an 08086-based CPU was MS-DOS 2.x. I remember how thrilled I was when we got to see how my friend’s 80286 system ran BBS software that would cause a modem to dial a local system and display the application as if it were running on a local machine. Totally sweet.
When we were living at 6162 NE Middle in the nine-eight 292, we got an 80386 which ran Doom. Yeah, the original one, not the fancy new one with the double barrel shotgun, but it would probably run that one, too.
[Read more...]The brief outage was due to a scheduled move of the servers to a separate rack and subnet dedicated to our work with the Center for Information Assurance & Cybersecurity (ciac) at the University of Washington Bothell (uwb), and a11y.com
I am currently exercising the new (to us) equipment and hope to winnow the less than awesome equipment over the next quarter. I spent the last six months finding the best in breed of the surplussed DL385 and DL380 chassis we (work) were going to have recycled. The team and I were able to find enough equipment to bring up one of each with eight and six gigs of memory, respectively. These will make excellent hypervisors for provisioning embedded instances of Slackware, Fedora, RHEL, CentOS, Debian, FreeBSD, OpenSolaris, OpenIndiana, FreeDOS, etc.
When I initially configured this xen paravirt environment, I failed to plan for integration with libvirt, so I am
[Read more...]This past week I attended OSCon, the annual conference for open source’s true believers. And there was a religous fervor in the air, particularly from the point of view of someone more accustomed to Oracle conferences.
And if open source is the religion, proprietary closed-source companies are the devil. That having been said, I was surprised how virtually all large companies were demonized. Even long-time defenders of open source like IBM were ignored at best. That didn’t prevent the from coming though, with Microsoft and HP in particular with high-profile sponsorships and PR offensives that didn’t seem to have much influence with the crowd.
The companies generating buzz were the small companies built around development of their own open source products. There are a surprising number of them out
[Read more...]It’s been released. Use this with NIST::NVD 1.00.00 and you will be able to perform immediate look-ups of CVE and CWE data given a CPE URN. For instance:
cjac@foxtrot:/usr/src/git/f5/NIST-NVD-Store-SQLite3$ perl Makefile.PL ; make ; make test ; cjac@foxtrot:/usr/src/git/f5/NIST-NVD-Store-SQLite3$ perl -MNIST::NVD::Query -MData::Dumper -e '
$q = NIST::NVD::Query->new(store => q{SQLite3},database => q{t/data/nvdcve-2.0.db});
$cve_list = $q->cve_for_cpe( cpe => q{cpe:/a:microsoft:ie:7.0.5730.11} );
print Data::Dumper::Dumper { cve_list => $cve_list, first_cvss => $q->cve( cve_id => $cve_list->[0] )->{q{vuln:cvss}} }
'
$VAR1 = {
'cve_list' => [
'CVE-2002-2435',
'CVE-2010-5071'
],
'first_cvss' => { [Read more...]
-0
I’m leaving myself some room for bug fixes. It works for us in house. I would love to help others to give it a try. especially those who could benefit from making nearly immediately answered queries to the NIST’s NVD database.
The code in this release cannot by itself track the feed from the feds in real time. The nvd entry loader needs a little bit of love in the area of record merging before this starts working. It’s on my TODO list.
I’m sorry for the outage of git.colliertech.org. I’ll get that back up here shortly. In the meantime, feel free to grab it from this location while the CPAN indexes and processes my submission.
http://www.colliertech.org/federal/NIST/NIST-NVD-1.00.00.tar.bz2
don’t forget to check the cryptographic signature:
[Read more...]SSH tunnels provide a very effective means to access remote services and applications. Not only does it provide encryption of data between hosts, but it allows you to route connections between a sequence of servers, thus chaining connections. A common use of this method is to provide encrypted connections to MySQL servers so that user accounts can be limited to only “localhost” privileges, yet accessed from remote workstations without having to run MySQL+SSL.
The concept is simple, for example let’s say you have three servers: localhost (your workstation in America), a server in Europe, and a server in Japan. You want to access Apache running on port 80 on the Japan server but because of firewall restrictions you cannot access port 80 remotely, and to make things more difficult the Japan server only allows SSH connections from the Europe server’s IP. We can
[Read more...]
A special extended edition of Tech Messages for 2011-09-21 through 2012-05-11:
A very well attended Pedro’s dinner – I didn’t count, but we had 9 tables of 8-10 people or so – dare I say almost a 100 people? Lots of beer, margaritas and good conversations! Here are a few pictures from the event
[Read more...]
I’m in the process of getting the tests passing for the 0.03 release of NIST::NVD::Store::SQLite3 wherein our hero imports the CWE data and cross-indexes it with CVEs and CPEs.
Follow along and suggest some patches. I’m developing on Debian Wheezy, but I would very much like input from devs on other platforms.
http://git.colliertech.org/?p=NIST-NVD-Store-SQLite3.git;a=summary
cjac@foxtrot:/tmp$ time git clone http://git.colliertech.org/git/NIST-NVD-Store-SQLite3.git Cloning into 'NIST-NVD-Store-SQLite3'... real 0m32.757s user 0m0.200s sys 0m0.088s cjac@foxtrot:/tmp$ ls NIST-NVD-Store-SQLite3/t/data/ cwec_v2.1.xml nvdcve-2.0-test.xml
Publish your patches and I’ll fetch them, or you can submit them in udiff format and I’ll review/apply. Thanks for playing
[Read more...]Read the original article at Book review – Trust Agents by Chris Brogan & Julien Smith
Stumbling onto 800-CEO-Read, and their top books feature, I found Brogan and Smith's work. Brogan's blog intrigued me enough so I walked down to the Strand here in NYC to pick up a copy.
What I found was an excellent introduction to the nebulous world of social media marketing, where you find all sorts of advice and suggestions on how to engage your target audience. If you're feeling like an ignoramus on matters of social media, Trust Agents is a great place to start and will give you
[Read more...]A special extended edition of Tech Messages for 2011-08-31 through 2011-09-21:
* 1x BIG-IP VE
* 1x Debian Squeeze “Provisioning Server” serving DHCP, TFTP & DNS
* 3x Nortel/Avaya 1120E hard phones flashed to SIP1120e04.01.13.00
* 2x Debian Squeeze + digium asterisk packages:
$ grep asterisk /etc/apt/sources.list deb http://packages.asterisk.org/deb squeeze main deb-src http://packages.asterisk.org/deb squeeze main
*CLI> module reload pbx_dundi.so *CLI> dundi show peers *CLI> dundi show mappings *CLI> dundi lookup 4012@extensions bypass *CLI> dundi set debug on
*CLI> sip show peers
*CLI> dialplan show RegisteredDevices
Yesterday, I installed a trixbox virtual machine using the
[Read more...]
A special extended edition of Tech Messages for 2011-01-27 through 2011-02-02:
A special extended edition of Tech Messages for 2011-01-12 through 2011-01-15:
For those that don’t follow the ARIN Public Policy Mailing List, the following is excerpted from a post by Thomas Narten in response to the announcement that the IESG has approved a new document to replace the existing RFC 3177 (IPv6 Address Assignment to End Sites).
[Read more...]> The IESG has approved the following document:
> – ‘IPv6 Address Assignment to End Sites’
> (draft-ietf-v6ops-3177bis-end-sites-01.txt) as a BCPQuoting from the Introduction:
This document obsoletes RFC 3177, updating its recommendations in the following ways:
A special extended edition of Tech Messages for 2011-01-07 through 2011-01-08:
A special extended edition of Tech Messages for 2010-12-22 through 2011-01-04:
A special extended edition of Tech Messages for 2010-12-14 through 2010-12-21:
Ignacio Nin and I (mostly Ignacio) have worked together to create tcprstat[1], a new tool that times TCP requests and prints out statistics on them. The output looks somewhat like vmstat or iostat, but we’ve chosen the statistics carefully so you can compute meaningful things about your TCP traffic.
What is this good for? In a nutshell, it is a lightweight way to measure response times on a server such as a database, memcached, Apache, and so on. You can use this information for historical metrics, capacity planning, troubleshooting, and monitoring to name just a few.
The tcprstat tool itself is a means of gathering raw statistics, which are suitable for storing and manipulating with other programs and scripts. By default, tcprstat works just like vmstat: it runs once, prints out a line, and exits. You’ll probably want to
[Read more...]What makes you think jdbc autoreconnect is needed?
Application is idle for long periods at a time?
Wait_timeout too short?
Network failure or glitches?
Some good suggestions form Mark Matthews - Bug #5020
Having encountered the problem again myself today, trying to make jdbc for mysql reconnect any terminated connections using autoreconnect=true I figured out a way to work it out from the pooling side.
Introduction to the problem:
On the mysql side wait_timeout is set to default 8hrs and any connections idle for longer than that were beomg terminated despite setting the connection string to: url=jdbc:mysql://localhost:3306/dbname?autoReconnect=true. The application was thence throwing an exception.
The solution was to introduce a ping
[Read more...]A special extended edition of Tech Messages for 2010-04-29 through 2010-05-14:
-0
A MySQL is running happily on a machine situated in a land far far away. I grant access to a user@machine_aaaaaa (grant select on db.* to ‘user’@'machine_aaaaa’ identified by ‘password’; flush privileges;), send an email to the user saying it should run fine and happily go off my way. Mistake!
It seems this user can’t connect to the mysql gets access denied:
Access denied for user ‘user’@'machine_bbbbb’ (using password: YES)
Note that the machine the user is being seen from is totally different from the one I set up in the grant!! WHY?
run a reverse lookup on the ip of machine_aaaaa, turns out it shows machine_bbbbb. So I figure a big bad guy messed up /etc/hosts, I was right! `cat /etc/hosts` just to find an entry for machine_aaaaa blehh
Ok, solution is to remove the entry from /etc/hosts (after
[Read more...]I was warned by my brother a while ago that should I start tweeting, he would stage an intervention. I had already confessed to accounts with facebook, multiply, myspace, and several others (disclaimer/explanation: all of those sites are customers of my longtime employer (http://www.mysql.com)). Twitter, to the uninitiated, looks like the crack cocaine of social networking that turns the weekend photo-poster into a hardcore jittering lifecaster. Nobody wants to see their family member come to that, right? But follow along, twitter has purpose. Or just skip to the bottom.
I was never an active friendster user. The first site I used regularly was the more inward-facing
[Read more...]I was warned by my brother a while ago that should I start tweeting, he would stage an intervention. I had already confessed to accounts with facebook, multiply, myspace, and several others (disclaimer/explanation: all of those sites are customers of my longtime employer (http://www.mysql.com)). Twitter, to the uninitiated, looks like the crack cocaine of social networking that turns the weekend photo-poster into a hardcore jittering lifecaster. Nobody wants to see their family member come to that, right? But follow along, twitter has purpose. Or just skip to the bottom.
I was never an active friendster user. The first site I used regularly was the more inward-facing
[Read more...]I was warned by my brother a while ago that should I start tweeting, he would stage an intervention. I had already confessed to accounts with facebook, multiply, myspace, and several others (disclaimer/explanation: all of those sites are customers of my longtime employer (http://www.mysql.com)). Twitter, to the uninitiated, looks like the crack cocaine of social networking that turns the weekend photo-poster into a hardcore jittering lifecaster. Nobody wants to see their family member come to that, right? But follow along, twitter has purpose. Or just skip to the bottom.
I was never an active friendster user. The first site I used regularly was the more inward-facing
[Read more...]
A special extended edition of Tech Messages for 2009-06-16 through 2009-06-25:
Wikimedia Foundation is expanding Wikipedia to multimedia with Sun Open Storage Solution and MySQL Database (http://www.mysql.com/customers/customer.php?id=186" target="_blank):
[Read more...]Wikipedia receives between 25,000 and 60,000 page requests per second, depending on the time of day. Wikimedia needed to update its infrastructure to handle this huge volume of traffic and ensure that its systems were reliable, highly available, and easily scalable. It also wanted to expand its upload file limit from 20 MB to 100 MB to accommodate rich media (audio and video) content,
Wikimedia Foundation is expanding Wikipedia to multimedia with Sun Open Storage Solution and MySQL Database (http://www.mysql.com/customers/customer.php?id=186" target="_blank):
[Read more...]Wikipedia receives between 25,000 and 60,000 page requests per second, depending on the time of day. Wikimedia needed to update its infrastructure to handle this huge volume of traffic and ensure that its systems were reliable, highly available, and easily scalable. It also wanted to expand its upload file limit from 20 MB to 100 MB to accommodate rich media (audio and video)
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