After a while, maybe one year after I install virtualenv on my Mac, there is an error when I run a python script in virtual environment:
Could not fetch URL ... : There was a problem confirming the ssl certificate: Can't connect to HTTPS URL because the SSL module is not available. - skipping
After researching on Google, finally I found this solution:
brew switch openssl 1.0.2jHope that it would work for you too.
Today I tried to install dlib on my CentOS 6.7 server using this command:
pip install dlib
There is an error:
Unsupported compiler — pybind11 requires C++11 support!
To fix this issue, we need to replace the C++ compiler in /usr/bin by newer version.
So we have to install newer gcc version and replace the c++ compiler with the newer one.
Firstly, we have to install some additional required packages:
sudo yum install svn texinfo-tex flex zip libgcc.i686 glibc-devel.i686
Then find gcc available versions:
svn ls svn://gcc.gnu.org/svn/gcc/tags | grep gcc | grep release
I found that gcc 5.5.0 is okay to fix the error above. So I install gcc 5.5.0
svn co svn://gcc.gnu.org/svn/gcc/tags/gcc_5_1_0_release/
Get source of additional prerequisites:
cd gcc_5_1_0_release/ ./contrib/download_prerequisites
Building gcc could eat much memory. If your server has less than 2GB RAM, you should create swap file:
SWAP=/tmp/swap dd if=/dev/zero of=$SWAP bs=1M count=500 mkswap $SWAP sudo swapon $SWAP
Now build gcc:
mkdir build cd build ../configure make
Building gcc can take 1 hour. So we have to wait now.
After building successfully, we can install it
make install
Now the new c++ compiler is installed in /usr/local/bin/ folder. We need to replace the current c++ compiler with this newer one.
We backup the current compiler first:
mv /usr/bin/cc /usr/bin/cc4.4.7 mv /usr/bin/c++ /usr/bin/c++4.4.7
Then create symbolic link to the newer version
ln -s /usr/local/bin/cc /usr/bin/cc ln -s /usr/local/bin/c++ /usr/bin/c++
Now I can install dlib without the error above:
pip install dlib
After installing, there is an error when importing dlib into python
ImportError: /usr/lib64/libstdc++.so.6: version `GLIBCXX_3.4.20′ not found (required by /usr/local/lib/python2.7/site-packages/dlib/dlib.so
To fix it, we replace the lib in /usr/lib64 with the newer one that we have just built:
mv /usr/lib64/libstdc++.so.6 /usr/lib64/libstdc++.so.6.old ln -s /usr/local/lib64/libstdc++.so.6 /usr/lib64/libstdc++.so.6
Recently I have a problem with Gitlab: My colleague had mistakenly typed wrong password multiple times on Gitlab login and all of us cannot access Gitlab because of IP ban.
It take a while for me to find out how to remove the banned IP on Gitlab. So I write it here for anyone can save their time:
Firstly, open redis client:
sudo /opt/gitlab/embedded/bin/redis-cli -s /var/opt/gitlab/redis/redis.socket
List the item with key contains “rack”:
redis /var/opt/gitlab/redis/redis.socket> KEYS *rack*
The result may like this:
1) cache:gitlab:rack::attack:allow2ban:ban:1.2.3.4
You can remove the ban using DEL command:
redis /var/opt/gitlab/redis/redis.socket> DEL “cache:gitlab:rack::attack:allow2ban:ban:1.2.3.4”
Recently I have to install Gearman on CentOS6. It was really a painful experience.
Firstly I simply installed it via yum, as the official documentation said:
yum install gearmand
So suprising! It was installed successfully.
“We are lucky this time” I think and continue to install Gearman-php
pecl install gearman
But the error occored:
Configure: error: Please install libgearman
The solution to fix it is straight foward:
yum install libgearman-devel
Then install the PHP extension again, it would work properly:
pecl install gearman
Mình có thằng em họ tên X đang học cao đẳng ở Hà Nội. Một hôm thấy mẹ nó gọi điện giọng khẩn thiết:
– Cháu ơi, thằng X nhà bác đang yêu con Y nào ấy. Cháu bảo nó giúp bác với: Bảo nó tập trung học hành đi đừng có yêu đương linh tinh. Bác nói nó chẳng chịu nghe.
– Ơ cháu thấy thằng X bình thường ở nhà cũng có chịu học hành quái đâu, suốt ngày đi chơi điện tử?
– Ừ thế nên bác mới nhờ cháu …
– Thế thì cháu nói thật, bác có ngăn nó yêu thì cũng bằng thừa vì không yêu đương gì thì nó cũng có chịu học đâu. Chi bằng giờ bác liên hệ với con Y, bảo nó nếu thương thằng X thì cố mà bảo ban nó học hành, không sau nó vô công rồi nghề ăn bám mày thì ráng chịu.
– Ờ hay! Mày nói có lý, để bác triển khai luôn!
Today I have to use TinyPNG to reduce the image size which is uploaded by users. I found the Tinify library on TinyPNG site. However, I want to create a library wrapper for it so I can easily use it in other CodeIgniter project. It just takes a little time now but it can help us save much time in the future.
I have upload to Github so that everyone can use it. You can get it here: https://github.com/nonggiatu/ci-tinypng
Happy coding 😉
When using Facebook PHP SDK to allow users loging in with their Facebook account on a website which is hosted on Amazon and accessed via HTTPS you may get an error: Your site is stuck after redirected from Facebook after authentication and redirect forever.
To fix it, just add option trustForwarded and set it to be true when construct Facebook object:
$facebook = new Facebook(
array(
'appId' => '123',
'secret' => 'abc',
'trustForwarded' => true,
)
);Welcome to WordPress. This is your first post. Edit or delete it, then start blogging!