For the past few days, I've spent most of my reading time with a new book titled DNSSEC Mastery. The author of the book is Michael W. Lucas, again (from my not too long ago book review blog post, Absolute OpenBSD 2nd Edition). He's now one of my favorite tech book author, upgraded from "favorite blog author". (Read more.. [...]
Posts in category www.scratching.psybermonkey.net
Book review – DNSSEC Mastery
For the past few days, I've spent most of my reading time with a new book titled DNSSEC Mastery. The author of the book is Michael W. Lucas, again (from my not too long ago book review blog post, Absolute OpenBSD 2nd Edition). He's now one of my favorite tech book author, upgraded from "favorite blog author". (Read more.. [...]
Book review – Absolute OpenBSD ...
If you're following BSD related news, you probably would have know about Absolute OpenBSD, 2nd Edition. The author is Michael W. Lucas, well known for fantastic technical books (Absolute FreeBSD, Network Flow Analysis, SSH Mastery, DNSSEC Mastery & others ). A while ago, I got hold of this book, Absolute OpenBSD 2nd Edition (in short [...]
Absolute OpenBSD, 2nd Edition –...
By now, everyone living in the BSD world would have known that Michael W. Lucas new book on OpenBSD is going to be release soon. By soon, I mean there\'s a couple of weeks more to go. If you have been following Michael\'s blog or read his technical books, you would probably have a taste of his writing style. Which (Read more...)
vim – improving vim skill by br...
Improving vim skill have a new way, \"breaking\" the arrow keys on the keyboard.
No No, not literally! Just disable them by assigning \"no operation\" to the arrow keys stroke. This will render your arrow keys useless when you\'re inside vim editor, thus forcing you to stick to h, j, k & l key to move around.
Put (Read more...)
FreeBSD Foundation – 2012 Year-...
Just did a quick check on the targeted $500k donations and FreeBSD Foundation have made it!
As of this post, FreeBSD Foundation have managed to surpass it\'s 2012 fund raising goal by $184 905, at the total of $684 905.
This is no doubt a great news to the end 2012 and I look forward to see more of these (Read more...)
AboutBSD.net – outage
Scratch of the day – PHP Warnin...
Yesterday, I noticed one of my Apache server's error log is growing like 1.1 gb in 12 hours. The log is full of these : Read more »
AboutBSD.net – Layout changes
Scratch of the day – How to dis...
Starting from OS X snow leopard (10.6) to Lion (10.7), Firefox have a mouse gesture of swiping 2 fingers left as go back a page in history & swiping to the right as go forward a page in history. Some times it is too sensitive as I scroll up & down in text reading would also trigger this behavior. Then (Read more...)
Scratch of the day – php throwi...
Today, I had to setup a Postgresql database server with phpPgAdmin web interface. While visiting the web interface for the first time, this error message appears on the top :
Strict Standards: Only variables should be assigned by reference in
/usr/local/www/phpPgAdmin/classes/database/Connection.php on line 23
Warning: Cannot modify [...]
Scratch of the day – ssh transf...
There\'s 2 servers which configured only my workstation is able to login using ssh keys. But I need to transfer files between these 2 servers. Downloading from server A to my workstation then upload the files to server B seems to be way. It would be good if I can combine the 2 operations into 1 single execution.
With shell\'s (Read more... [...]
Scratch of the day – exclude lo...
After telling dhcpd to log messages to local7 of syslogd, \"uid lease\" messages are still being log in /var/log/messages. This is because by default, syslogd logs \"notice\" level and above to /var/log/messages.
If you don\'t wanna see these messages in /var/log/messages, which it has already log to /var/log/dhcpd.log, include the log leve [...]
Scratch of the day – ISC dhcpd ...
Just now, restarting the ISC DHCP server, after adding new subnet, spill out some error messages :
No subnet declaration for gem0 (192.168.168.168).
** Ignoring requests on gem0. If this is not what
you want, please write a subnet declaration
in your dhcpd.conf file for the network segment
to which interface gem0 is attached. **
Se [...]
Scratch of the day – arpresolve...
Today, one of the server was uncontactable after a network switch flood incident. All other servers are working fine except this one. Log into this server through the console, reveals :
- ping to gateway is fine
- ping to a host outside this network failed
- ssh connection to same segment is fine but not beyond gateway
/var/l [...]
Scratch of the day – dmesg log ...
dmesg log is the place where system information are written to it, similar to /var/log/messages. It is particularly useful to get information of Hardware details. But after some time, the information in /var/log/dmesg.today & /var/log/dmesg.yesterday are replaced with system messages where by boot messages are replaced.
Fortunately, a c [...]
FreeBSD – Running Puppet on Fre...
The latest issue of BSD Magazine is out and guess what? It has an article that I\'ve wrote on running Puppet on FreeBSD!
BSD Magazine is a free to download magazine that focus on BSD, be it FreeBSD, OpenBSD, NetBSD, PC-BSD and others. From BSDMag.org website :
\"We decided to create a magazine for BSD users, enthusiasts and (Read more...)
Scratch of the day – Real time ...
There's a sudden surge of network traffic in one of the servers and I need to find out what causes it. Roaming around ports show up this :
/usr/ports/net-mgmt/iftop
iftop does for network usage what top(1) does for CPU usage ...(via)
To start monitoring :
Read more »
Scratch of the day – Back dated...
Did some sysctl tuning and need to monitor the log file every \"yesterday\". This is what I\'ve managed to split out from \"strftime\" manual (via \"date\") :
# date
Fri Dec 30 09:59:27 MYT 2011
# date -v -1d +%b %Oe
Dec 29
With this, make cron send me an email with filtered entries of /var/log/messages :
1 (Read more...)
FreeBSD Foundation – 2011 Year ...
Another year is passing and the season of giving is coming !!!
This year, the FreeBSD Foundation is targeting to raise 400k. These funds will be put into the good use of FreeBSD related activities :
sponsor BSD conferences & events
sponsor developers to attend these conferences
protect the intellectual property of the FreeBSD project
ma [...]
FreeBSD – HP DL 120 G7 hardware
Recently, I had a chance to test the compatibility of installing FreeBSD on an HP server. This are the specs of the server :
HP DL 120 G7 E3-1240
- 16gb DDR 3 ram
- dual nic port (HP NC112i 1-Port Ethernet Server Adapter (x2))
- Array Card (HP Smart Array P212/256MB Controller (RAID 0/1/1+0/5/5+0))
The NICs, Smart Array & (Read more. [...]
