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jumpserver-华为云免费堡垒机解决方案一、环境CentOS 6.x x86_64 minivi etc hostsvi etc sysconfig networkservice iptables stopchkconfig iptables off关闭SELinu...一、环境
CentOS 6.x x86_64 mini
vi /etc/hosts
vi /etc/sysconfig/network
service iptables stop
chkco...
embedding image in html email
... you don't have a base64-data string, create one easily at:
http://www.motobit.com/util/base64-decoder-encoder.asp from a image file.
Email source code looks something like this, but i really cant tell you what that boundary thing is for:
To: email@email.de
Subject: ...
Content-Type: multipart/...
Ruby max integer
...ig they can be.
If you are looking for the machine's size, i.e. 64- or 32-bit, I found this trick at ruby-forum.com:
machine_bytes = ['foo'].pack('p').size
machine_bits = machine_bytes * 8
machine_max_signed = 2**(machine_bits-1) - 1
machine_max_unsigned = 2**machine_bits - 1
If you are lookin...
MAC addresses in JavaScript
...olution which relied on using ActiveX objects. If you could post a link showing otherwise...
– GateKiller
Jan 12 '11 at 16:52
26
...
Where can I get a list of Ansible pre-defined variables?
... "ansible_userspace_architecture": "i386",
"ansible_userspace_bits": "32",
"ansible_virtualization_role": "guest",
"ansible_virtualization_type": "virtualbox"
},
"changed": false
}
The current documentation now has a complete chapter listing all Variables an...
Test whether string is a valid integer
... size of the integer is checked towards bash limits (on my computer it's 64bits). This limit does not hit the regexp solution. So you solution will fail on number strictly greater than 9223372036854775807 on 64bits computers.
– vaab
Nov 6 '15 at 2:52
...
How to create a windows service from java app
...
@Vladimir tanuki wrapper is no longer open sourced for 64bit arch
– gerrytan
Jul 3 '14 at 23:31
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show 1 more comment
...
How to properly seed random number generator
...xpect. I see increments of about 1000000 ns, so 1 ms increments. That's 20 bits of entropy that are not used. All the while the high bits are mostly constant!? Roughly ~24 bits of entropy over a day which is very brute forceable (which can create vulnerabilities).
The degree that this matters to you...
Detecting iOS / Android Operating system
...obile operating system.
* This function returns one of 'iOS', 'Android', 'Windows Phone', or 'unknown'.
*
* @returns {String}
*/
function getMobileOperatingSystem() {
var userAgent = navigator.userAgent || navigator.vendor || window.opera;
// Windows Phone must come first because its UA...
Utils to read resource text file to String (Java) [closed]
... has change the implementation. For guava 23 the implementation likes following. ClassLoader loader = MoreObjects.firstNonNull( Thread.currentThread().getContextClassLoader(), Resources.class.getClassLoader());
– xxy
Feb 22 at 12:18
...