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社会化海量数据采集爬虫框架搭建 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...需要登录，为了应对登录的网站要有模拟用户登录的爬虫系统，才能正常获取数据。不过社会化网站都希望自己形成一个闭环，不愿意把数据放到站外，这种系统也不会像新闻等内容那么开放的让人获取。这些社会化网站大部分...
Postgresql: password authentication failed for user “postgres”
...
If I remember correctly the user postgres has no DB password set on Ubuntu by default. That means, that you can login to that account only by using the postgres OS user account.
Assuming, that you have root access on the box you can do:
sudo -u postgres psql
If that fails with a database ...
How to Set AllowOverride all
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In case you are on Ubuntu, edit the file /etc/apache2/apache2.conf (here we have an example of /var/www):
<Directory /var/www/>
Options Indexes FollowSymLinks
AllowOverride None
Require all granted
</Directory&...
ssh: connect to host github.com port 22: Connection timed out
...yself and I got it resolved.
For me I am getting this error on my AWS EC2 UBUNTU instance, what I did to resolve it was to edit the ssh config (or add it if it does not exist).
sudo nano ~/.ssh/config
And I added the following
Host github.com
Hostname ssh.github.com
Port 443
Then, run the co...
How to clear basic authentication details in chrome
... Does not work for me (63.0.3239.84 (Official Build) Built on Ubuntu , running on Ubuntu 16.04 (64-bit))
– Jasper de Vries
Dec 14 '17 at 14:05
1
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Disable ONLY_FULL_GROUP_BY
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next copy result to your my.ini file.
mint: sudo nano /etc/mysql/my.cnf
ubuntu 16 and up: sudo nano /etc/mysql/my.cnf
ubuntu 14-16: /etc/mysql/mysql.conf.d/mysqld.cnf
Caution! copy_me result can contain a long text which might be trimmed by default. Make sure you copy whole text!
old answer:...
pg_config executable not found
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pg_config is in postgresql-devel (libpq-dev in Debian/Ubuntu, libpq-devel on Centos/Cygwin/Babun.)
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Linux下追踪程序退出(崩溃)思路 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...崩溃)时间。
2、coredumpctl查看是否有崩溃记录。
3、查看系统日志 cat /var/log/message，已切分压缩的日志使用 xzcat 查看。
4、查看历史命令 history，看一下是否有正常执行退出的命令记录。
追踪过程如下：
1、查看程序在09-17 1...
Windows如何查看系统日志 - 更多技术 - 清泛网 - 专注C/C++及内核技术
Windows如何查看系统日志 Windows 系统日志
分布式文件系统关键技术 PDF - 文档下载 - 清泛网 - 专注C/C++及内核技术
分布式文件系统关键技术 PDF分布式 文件系统 关键技术 WinXP,Win7,Win8,Win10844K