สงกรานต์ปี 2559 เป็นปี จ.ศ. (2559 – 1181) = 1378
วันเถลิงศก ตรงกับ
(1378 * 0.25875)
+ floor(1378 / 100 + 0.38)
- floor(1378 / 4 + 0.5)
- floor(1378 / 400 + 0.595)
- 5.53375
= 356.5575 + 14 - 345 - 4 - 5.53375
= 16.02375
= วันที่ 16 เมษายน 2559 เวลา 00:34:12
วันสงกรานต์ ตรงกับ
16.02375 - 2.165 = 13.85875
= วันที่ 13 เมษายน 2559 เวลา 20:36:36
The Go match between AI and pro is very interesting. I’m a fan of igo/weiqi/baduk. I used to play constantly, and was rated SDK (single-digit kyu). Also, as a computer scientist, Go is the only board game that the best human can defeat the best AI.
Well, not anymore.
AlphaGo, with deep/machine learning, was well-trained, and beat one of the world’s best professional, Lee Sedol 4-1 (game records [1] [2] [3] [4] [5]).
With the advancements of methods, algorithms, and abundant resources of Google/Alphabet, I would not surprise much about the result. What surprised me was that it came much earlier than I expected.
With such advances in AI, many people start discussing about AI/robots will take over the planet – like Terminator’s SkyNet, or the Matrix. I think we, humanity, should must be very careful about using AI. We all should must know that, in the end, human cannot be superior the AI.
Biologically, we just can’t.
Many scientists knew that. For decades, groups of researchers tried to come up with the ultimate laws to control AI to ensure the public safety; something like Asimov’s Three Law of Robotics in the real world. There are many recent papers published in the area called “Ethics of Artificial Intelligence“. Having ethics / laws is great, I totally agree with that. But, then again, just like any laws humanity came up with – religions, rules, laws, ethics, orders, you name it – the problem is the control.
Controls, including ones that will apply over AI, depend on human. But, humans are radical. They are uncontrollable. I’m pretty confident that, even with the ultimate laws of robotics, ones will build AI without the laws embedded.
The threat against humanity is, unfortunately, not the AI, but humans themselves.
I’ve been using Graylog in production for awhile. It’s a great log analysis tool, backed by elasticsearch. Conceptually, graylog is pretty much like splunk. I consolidate approximately 170-200 million log messages to graylog everyday. So, I need to optimize them well enough.
Few days ago, I started to use Fortigate extractors from a git repo. It uses regex, and it is very slow. So I (have to) write my own extractors. I write Grok pattern, and keep rewriting until I could cover all messages I need to extract. Then, I started to optimize the pattern. The result is quite good though. I could reduce extractor time from more than 100,000 usec to about 100 usec.
Yes, that’s approximately 1000x times faster. It’s definitely not perfect though, but it works for me. If you think it might be good for you, you can download my Fortigate content pack here.
Enjoy :)
… damn .. 5555+
dnsmasq is the default DNS resolver if you use NetworkManager. It runs pretty well most of the time. When it doesn’t, you would not be able to access the Internet if you need to resolve names.
I’m not a fan of dnsmasq, and if you – like me – want to disable it, just edit
/etc/NetworkManager/NetworkManager.conf
and remove/comment
dns=dnsmasq
Restart NetworkManager, it will use traditional faithful method of /etc/resolv.conf.
Yes, yes, I know. There is the official document to guide you, e.g. http://docs.graylog.org/en/2.0/pages/installation/operating_system_packages.html
BUT, RTFM ! You need to install Java, MongoDB, elasticsearch config, and ensure they run well BEFORE you can run Graylog. That would need skills and time to do it right.
For those Ubuntu people, there is another way. Graylog officially (and constantly) releases a single deb package to update the OVA version. This package includes everything you need to run Graylog, so you can use it to deploy Graylog.
You can simply download the package at https://packages.graylog2.org/omnibus, dpkg -i to install, graylog-ctl to configure and run.
DONE.
This is simple, and you can do it without rebooting the machine.
For example, let’s say you have /tmp using tmpfs, and you want to set size to 4 GB:
# mount -o remount,size=4G,noatime /tmp
That’s it.
Many admin faced an issue when using a USB keyboard on IBM Advanced Management Module (AMM) with Linux.
It seems that some Linux distros do not recognize USB device on IBM AMM and then power off the USB port, disconnect a device plugged in.
The solution is quite straightforward: always supply the power to the port.
With udev, you can add the following rules
/lib/udev/rules.d/95-ibm-amm-power-workaround.rules
ACTION=="add", SUBSYSTEM=="usb", ATTR{idVendor}=="04b3", ATTR{idProduct}=="4002", TEST=="power/control", ATTR{power/control}="on"
ไปร่วมงานสัมมนา “F5 อ่อนว่ะ” ได้ข้อสรุปอย่างหนึ่งที่พี่โดมอาจจะไม่ได้พูดถึง แต่ผมคิดว่าเป็น success factor ของ large scale web นอกเหนือไปจาก design pattern ที่พี่โดมพูดไว้ในงานไปแล้ว นั่นคือ
“ทีม”
พี่โดมมีทีมที่ทำงานด้วยกันตั้งแต่ออกแบบ วาง infra ยัน software dev นอกจากจะเป็นทีมที่เทคนิคแข็งแกร่ง ประสบการณ์สูงแล้ว ยังเชื่อมต่อพูดคุย product เป็นเนื้อเดียวตั้งแต่ต้นจนจบ
อย่างที่ ดีน กับ ไมเคิล พูดในงาน DevOps Meetup #1 ไว้ว่า DevOps ไม่ใช่ job position ที่ไว้ประสาน / เป็นกันชนระหว่างฝั่ง developers กับฝั่ง IT operations
DevOps มันคือ “mindsets ในการสลาย developer silo กับ IT operation silo”
ในอีกแง่หนึ่ง ดีน กับ ไมเคิลบอกว่า มันคือ agile ที่ extend จาก developer-tester (QC) มายัง infra/operations เพื่อ deliver products / monitor indicators / response issues ได้ไว และ แม่นยำ เกิด bottleneck น้อยลงหรือไม่มีเลย
ไม่ต้องมีตำแหน่ง DevOps หรอก ให้สองฝั่งคุยกันเยอะๆ feedback กันเยอะๆ เห็นมุมมอง/ผลกระทบอีกด้านเยอะๆ แค่นั้นก็ทำ DevOps ได้
ผมเห็นทีมพี่โดมเป็นแบบนั้นแหละ .. เป็น DevOps โดยธรรมชาติ
It looks like samba sending a list of file names in random order. Of course, you could make it sort alphabetically and make your life easier.
For Debian/Ubuntu
# apt-get install samba-vfs-modules
then edit /etc/samba/smb.conf
[global] vfs objects = dirsort
Restart your samba, and tada !