zsero - Developer IT

Setting php values in php-fpm confs instead of php.ini

- by zsero

I'd like to set values in php-fpm conf files what are normally set in php.ini. I'm using nginx. I've created the following setting, but I'm not sure if this would work. php_value[memory_limit] = 96M php_value[max_execution_time] = 120 php_value[max_input_time] = 300 php_value[php_post_max_size] = 25M php_value[upload_max_filesize] = 25M Do you think if this is OK like this? What happens when a value is both set in php.ini and in php-fpm conf files? The php-fpm overrides the ini one? Finally, isn't it a problem that this way I can set different values for all virtual hosts? I mean php.ini seems like a global setting, while this is host dependent. Can different hosts run with different memory-limits, etc?

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Command line solution for removing parts from a binary file?

- by zsero

I have a binary file and I would like to remove parts from. By removing I mean deleting those parts and thus making the file's size smaller. The parts would be between two ASCII strings. So, for example the file would look like this ........ start ABCD end ..... start EFGH end ..... start IJKL end ........... So in this file, I would like to search for strings "start" and "end" and remove the parts between them. The way I think I can do it is to lookup all the locations for "start" and "end" calculate ranges from that delete those parts Now I am using some GUI based Hex editor and I use the "Search All", "Select Range" and "Delete" commands, but I am sure it would be possible to solve it using some powerful command line hex/text editors. Do you know any solution for this problem which doesn't require using a GUI for looking up, copy & paste on clipboard, select range and delete commands but is just a few lines of command line? I am interested ini both Linux shell scripts or using some command line hex editors under Windows, or even Python scrips are welcome. Do you think it is possible to solve this problem just by a simple Regex replace? Are there any regex replace util which handles binary files well?

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How to enable printer settings over Jetdirect on HP 4100N

- by zsero

I have a HP 4100N printer and I am using it over network. Previously I was able to access the printer settings over internet, but now the only thing visible is Device Info and Networking. I can connect to the web server and I can set all the network related settings, but that's not what I want. There should be a supplies, config, print info, etc. page, what are not visible now. Can you tell me what setting should I set to enable this printer config page on the webserver? The printer is a HP 4100N and the network card is J4169A (Jetdirect 610n).

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How to modify a given class to use const operators

- by zsero

I am trying to solve my question regarding using push_back in more than one level. From the comments/answers it is clear that I have to: Create a copy operator which takes a const argument Modify all my operators to const But because this header file is given to me there is an operator what I cannot make into const. It is a simple: float & operator [] (int i) { return _item[i]; } In the given program, this operator is used to get and set data. My problem is that because I need to have this operator in the header file, I cannot turn all the other operators to const, what means I cannot insert a copy operator. How can I make all my operators into const, while preserving the functionality of the already written program? Here is the full declaration of the class: class Vector3f { float _item[3]; public: float & operator [] (int i) { return _item[i]; } Vector3f(float x, float y, float z) { _item[0] = x ; _item[1] = y ; _item[2] = z; }; Vector3f() {}; Vector3f & operator = ( const Vector3f& obj) { _item[0] = obj[0]; _item[1] = obj[1]; _item[2] = obj[2]; return *this; }; Vector3f & operator += ( const Vector3f & obj) { _item[0] += obj[0]; _item[1] += obj[1]; _item[2] += obj[2]; return *this; }; bool operator ==( const Vector3f & obj) { bool x = (_item[0] == obj[0]) && (_item[1] == obj[1]) && (_item[2] == obj[2]); return x; } // my copy operator Vector3f(const Vector3f& obj) { _item[0] += obj[0]; _item[1] += obj[1]; _item[2] += obj[2]; return this; } };

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Combining DROP USER and DROP DATABASE with SELECT .. WHERE query?

- by zsero

I'd like to make a very simple thing, replicate the functionality of mysql's interactive mysql_secure_installation script. My question is that is there a simple, built-in way in MySQL to combine the output of a SELECT query with the input of a DROP user or DROP database script? For example, if I'd like to drop all users with empty passwords. How could I do that with DROP USER statement? I know an obvious solution would be to run everything for example from a Python script, run a query with mysql -Bse "select..." parse the output with some program construct the drop query run it. Is there an easy way to do it in a simple SQL query? I've seen some example here, but I wouldn't call it simple: http://stackoverflow.com/a/12097567/518169 Would you recommend making a combined query, or just to parse the output using for example Python or bash scripts/sed?

Developer IT