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当ORACLE 11G 遇到 JUNIPER 防火墙 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...故障现象 172.16.100.70可以使用PL SQL登陆ORACLE 但是执行查询操作就无响应。使用SQL*PLUS可以查询。撤掉防火墙改为直连，WIND...TOP 如下
故障现象 172.16.100.70可以使用PL/SQL登陆ORACLE 但是执行查询操作就无响应。使用SQL*PLUS可以查...
Command line progress bar in Java
...he same kind of progress bar you would see using wget under unix.
Is this possible?
15 Answers
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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...的入口，防止其中一个挂掉所有的mongodb请求都没有办法操作。
config server，顾名思义为配置服务器，存储所有数据库元信息（路由、分片）的配置。mongos本身没有物理存储分片服务器和数据路由信息，只是缓存在内存里，配置...
Generating random numbers in Objective-C
...d Jan 25 '19 at 18:31
Paulo Mattos
15.2k88 gold badges5858 silver badges7171 bronze badges
answered Oct 2 '08 at 16:00
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server certificate verification failed. CAfile: /etc/ssl/certs/ca-certificates.crt CRLfile: none
...
TLDR:
hostname=XXX
port=443
trust_cert_file_location=`curl-config --ca`
sudo bash -c "echo -n | openssl s_client -showcerts -connect $hostname:$port -servername $hostname \
2>/dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END...
How should strace be used?
...rogrammer / user to quickly find out how a program is interacting with the OS. It does this by monitoring system calls and signals.
Uses
Good for when you don't have source code or don't want to be bothered to really go through it.
Also, useful for your own code if you don't feel like opening up GD...
Determining the last changelist synced to in Perforce
...
I recommend the opposite for automatic build systems: you should first get the latest changelist from the server using:
p4 changes -s submitted -m1
then sync to that change and record it in the revision info. The reason is as follows. Alth...
也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...nux但是还的学那一大堆命令....使用看reactos,照样可以理解操作系统的精髓...还有就是编译reactos在windows下,方便呀...,
废话不多说,看了半天的reactos的代码,心里跃跃欲试,想为reactos做点贡献,但是前提是怎么调试代码呢?.. ....由于...
How to get the home directory in Python?
...
You want to use os.path.expanduser.
This will ensure it works on all platforms:
from os.path import expanduser
home = expanduser("~")
If you're on Python 3.5+ you can use pathlib.Path.home():
from pathlib import Path
home = str(Path.home...
How to get the system uptime in Windows? [closed]
...
Following are eight ways to find the Uptime in Windows OS.
1: By using the Task Manager
In Windows Vista and Windows Server 2008, the Task Manager has been beefed up to show additional information about the system. One of these pieces of info is the server’s running time.
R...