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Possible reasons for timeout when trying to access EC2 instance
... I just added a rule, and instead of putting a "custom" ip address, I just selected 'my IP' and wala... I was able to ssh in!
– rikkitikkitumbo
Oct 17 '16 at 7:32
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Linux进程与线程总结 [推荐] - C/C++ - 清泛网 - 专注C/C++及内核技术
...进行通信。一个完整的socket有网络协议、网络地址、网络端口三个属性，然后由操作系统为它分配一个本地唯一的socket号。就比如日常生活中的电话，双方必须都要拥有一台电话机而且号码必须唯一，建立通话时必须要知道对方...
How to safely upgrade an Amazon EC2 instance from t1.micro to large? [closed]
...es" and create a Snapshot of your instance's volume.
Go to "Snapshots" and select "Create Image from Snapshot".
Go to "AMIs" and select "Launch Instance" and choose your "Instance Type" etc.
share
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adito-gateway -华为云免费SSL VPN解决方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...natives --config java
There are 4 programs which provide 'java'.
Selection Command
-----------------------------------------------
*+ 1 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java
2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
3 /usr/lib/jvm/...
Why do we need private subnet in VPC?
...including those with only private IP addresses, to directly access S3 from selected subnets within the VPC, without touching "the Internet," and without using a NAT instance or NAT gateway, but this does require additional configuration, and is only usable to access buckets within the same AWS regio...
Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?
...n multiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a goo...
What are the Ruby Gotchas a newbie should be warned about? [closed]
...as constants, so local variables should begin with a lowercase letter.
The characters $ and @ do not indicate variable data type as in Perl, but rather function as scope resolution operators.
To denote floating point numbers, one must follow with a zero digit (99.0) or an explicit conversion (99.to_...
MySql : Grant read only options?
...ends on how you define "all read."
"Reading" from tables and views is the SELECT privilege. If that's what you mean by "all read" then yes:
GRANT SELECT ON *.* TO 'username'@'host_or_wildcard' IDENTIFIED BY 'password';
However, it sounds like you mean an ability to "see" everything, to "look but...
Visual SVN 安装及客户端使用 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...服务器的配置也只是在图像界面上，指定认证方式、访问端口等简单操作；另外，用户权限的管理也是通过图像界面来配置。
2.为什么不用TFS?
回答:
因为我们一开始就是用Subversion和TortioseSVN,所以就没有更换其他的软件。至于T...
How to write a scalable Tcp/Ip based server
... to doubt these indicative figures.
IOCP versus thread-per-connection or 'select' primitives
The reason you want to use a mechanism that uses IOCP under the hood is that it uses a very low-level Windows thread pool that does not wake up any threads until there is actual data on the IO channel that...