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+0  My Nexus 5X bullhead is gone for good

Tag: Linux | Android | Networking | Privacy | Security | Technology
IT牛人.117 发于 2017年04月25日 18:30 | 点击: 445 | 展开摘要
TL;DR

The 13 months old Nexus 5X 32GB entered an infinite reboot loop, it has gone for good. LG != Life’s Good, it stands for Low (quality, standards) Goods really, avoid at any cost.

NOTE: My previous Nexus 5 became unusable after the po

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+0  Why 370Z

Tag: Car | Life | Technology
IT牛人.117 发于 2017年03月14日 18:30 | 点击: 373 | 展开摘要
TL;DR

I am going to buy a manual Nissan 370Z - the Fairlady.

Why 370Z?

Engine: VQ37VHR 3.7L V6 245kW/363Nm (redline @ 7500rpm). The best NA V6 engine, I lost count on how many times it has won Ward’s best engine. Really like naturally as

查看全文: http://www.udpwork.com/item/16177.html
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+0  Initial impressions of SQL Server v.Next Public Preview

Tag: Linux | SQLServer | Technology
Haidong Ji 发于 2016年11月18日 11:42 | 点击: 1147 | 展开摘要
Microsoft announced its SQL Server on Linux public preview yesterday. I’m really excited to check it out. Here are some interesting things I found during my testing. I’ll write more as I play with it further.

If you want to pla

查看全文: http://www.udpwork.com/item/15928.html
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+0  Changing non-nullable column to nullable in SQL Server is quick and painless

Tag: SQLServer | Technology
Haidong Ji 发于 2016年09月19日 02:35 | 点击: 503 | 展开摘要
In T-SQL, you can only ALTER COLUMN one at a time. Initially I was worried about operational cost of this change, but it turned out this change is instantaneous.

Mind you, I’m not suggesting you should do this without a good reason.

查看全文: http://www.udpwork.com/item/15834.html
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+0  No 32-bit for SQL Server 2016 Express

Tag: SQLServer | Technology | Windows
Haidong Ji 发于 2016年09月01日 23:43 | 点击: 547 | 展开摘要
I’ve learned that SQL Server 2016 Standard and Enterprise Editions no longer provide 32-bit. But I do wonder about SQL Server 2016 Express Edition. It’s different in that it’s free, and mostly geared toward lightweight usa

查看全文: http://www.udpwork.com/item/15773.html
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+0  Adding attachment to Outlook 2016 email

Tag: Technology | Windows
Haidong Ji 发于 2016年07月15日 23:48 | 点击: 484 | 展开摘要
A couple of months ago Outlook 2016 on my old PC (Windows 10) started misbehaving:

Clicking “Attach File” to add an attachment from my PC to an email message;

A window would show up. When it worked, I would be able to move the

查看全文: http://www.udpwork.com/item/15676.html
^..^

+0  SQL Server best practice: grant permissions to per-service SID

Tag: SQLServer | Technology | Windows
Haidong Ji 发于 2016年05月20日 13:03 | 点击: 554 | 展开摘要
Since Windows Server 2008/Windows Vista, from SQL Server 2008 onward, SQL Server installation process automatically generates per-service security identifier (SID). Whenever possible, it is recommended to grant rights to this service SID fo

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+0  Linux 4.5

Tag: Linux | kernel | networking | Technology
IT牛人.117 发于 2016年03月14日 18:30 | 点击: 322 | 展开摘要
Linux 4.5 于 UTC-7 3月13日发布，代号是 Blurry Fish Butt。

Prominent features / 显著特性

copy offloading with new copy_file_range(2) system call

copy_file_range(2) 新系统调用，可避免在复制文件时通过用户空间传输数据的开销。该系统调用只比 cp 稍快，因为复制内存的开销相对于实际 I/O （瓶颈）来说都可以忽略不计。但对某些用例则非常有意义

查看全文: http://www.udpwork.com/item/15837.html
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+0  Secure OpenSSH

Tag: Linux | ssh | OpenSSH | networking | security | Technology
IT牛人.117 发于 2016年02月10日 18:30 | 点击: 354 | 展开摘要
I’ve been continuously learning OpenSSH (since 2006) and closely following its changes since version 6.7.

I personally consider start using Public Key Authentication and Host-based Authentication a milestone from a beginner to intermediate

查看全文: http://www.udpwork.com/item/15838.html
^..^

+0  New iptables Gotchas - SNAT VS MASQUERADE

Tag: Linux | iptables | networking | security | Technology
IT牛人.117 发于 2016年02月02日 14:01 | 点击: 272 | 展开摘要
Story

As a heavy user of iptables NAT rules, (advanced home networking, various VPNs on EC2 and other IaaS providers), I feel it’s time for me to better understand how NAT works under the hood with the help of iptables.

That’s why I start

查看全文: http://www.udpwork.com/item/15839.html
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+0  Mouse Support Change in tmux 2.1

Tag: tmux | linux | networking | network | terminal | Technology
IT牛人.117 发于 2016年02月01日 08:56 | 点击: 278 | 展开摘要
tmux was updated to 2.1 on both Arch Linux (of course, it’s rolling!) back in October last year.

NOTE: homebrew for OS X was pretty quick, too.

I started to notice warnings when spawning the first tmux process.

/home/terry/.tmux.conf:65:

查看全文: http://www.udpwork.com/item/15840.html
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+0  Accessing modem status information with Netgear router

Tag: Technology | Web
Haidong Ji 发于 2016年01月15日 13:28 | 点击: 826 | 展开摘要
If, like me, you bought your own cable modem and Netgear wireless router for Comcast service, the way to access your modem’s status information is different. When using the equipment provided by Comcast, in my case the Technicolor TC8

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