It is harmful to eyes seeing dark blue directory list

For some reason it is not a big issue in local terminal. However it happens in remote login through ssh and then do ‘ls’ command.

Adventitiously I observed my desktop cannot do NTP update, suspecting it is because of proxy. I did some triage then google.

Credit/refer to How to use ntpdate behind a proxy?

2^0     1
2^1     2
2^2     4
2^3     8
2^4     16
2^5     32
2^6     64
2^7     128
2^8     256
2^9     512
2^10    1024
2^11    2048
2^12    4096
2^13    8192
2^14    16384
2^15    32768
2^16    65536
2^17    131072
2^18    262144
2^19    524288
2^20    1048576
2^21    2097152
2^22    4194304
2^23    8388608
2^24    16777216
2^25    33554432
2^26    67108864
2^27    134217728
2^28    268435456
2^29    536870912
2^30    1073741824
2^31    2147483648
2^32    4294967296
2^33    8589934592
2^34    17179869184
2^35    34359738368
2^36    68719476736
2^37    137438953472
2^38    274877906944
2^39    549755813888
2^40    1099511627776
2^41    2199023255552
2^42    4398046511104
2^43    8796093022208
2^44    17592186044416
2^45    35184372088832
2^46    70368744177664
2^47    140737488355328
2^48    281474976710656
2^49    562949953421312
2^50    1125899906842624
2^51    2251799813685248
2^52    4503599627370496
2^53    9007199254740992
2^54    18014398509481984
2^55    36028797018963968
2^56    72057594037927936
2^57    144115188075855872
2^58    288230376151711744
2^59    576460752303423488
2^60    1152921504606846976
2^61    2305843009213693952
2^62    4611686018427387904
2^63    9223372036854775808
2^64    18446744073709551616

I got ASUS Wireless-N USB dongle couple months ago, thought it is supported in Linux, however I have no luck to enable it no matter on Ubuntu 12.04 nor 14.04 LTS.

A quick note to build your customized Linux kernel on Ubuntu system. Below are refer to GitKernelBuild

Brendan Gregg 於今年八月在LinuxCon所給的演說，內容涵蓋high-level overview到常用基本指令可讓工程師知道如何分析系統效能瓶頸。

Here is a memo of Linux workstation administration FAQs

If you’re using Intel I217-LM ethernet on Ubuntu 12.04 LTS, you might get trouble says eth0 is not working on Linux kernel 3.2.x

I write this FAQ list for git problems, usually you can google on stackoverflow or somewhere…

Basically this is short notes about building Chromium OS (a.k.a Chrome OS), all refer to Chromium OS Developer Guide