• A
    Bannato User •

    E' possibile rendere disponibile MySQL a un sito remoto?

    Ho un server con MySQL installato posso farlo utilizzare a phpBB che sta su un altro sito (Con IP diverso logicamente) ?

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  • P
    Moderatore •

    MySQL è accessibile sia in locale che in remoto, ovviamente di default l'accesso remoto è bloccato, basta cambiare la configurazione

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  • A
    Bannato User •

    Questo è il bello come si fà?

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  • P
    Moderatore •

    bisogna editare il file di configurazione my.cnf

    devi assicurarti che skip-networking sia commentato e che bind-address = ip-del-server-mysql

    a questo punto puoi connetterti a mysql da remoto

    ovviamente quando vai a creare le tabelle devi garantire accesso all'utente dal PC locale

    per esempio se MySQL si trova all'indirizzo 192.168.0.4 e il PC da cui ti connetti è 192.168.0.18 dovrai creare le tabelle con questi permessi

    GRANT ALL ON nome-tabella.* TO nome-utente@'192.168.0.18' IDENTIFIED BY 'qui va la password';

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  • A
    Bannato User •

    Io trovo solo il file my.ini ma my.cnf nn lo vedo,
    le tabelle poi le edita phpBB no io, la versione MySQL invece è: MySQL 5.0

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  • P
    Moderatore •

    @a.marco92 said:

    Io trovo solo il file my.ini ma my.cnf nn lo vedo,
    le tabelle poi le edita phpBB no io, la versione MySQL invece è: MySQL 5.0

    si sotto windows è my.ini

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  • A
    Bannato User •

    Si ma queste stringhe che dici nn le trovo

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  • P
    Moderatore •

    beh devono esserci, posta il file my.ini

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  • A
    Bannato User •

    Ecco il file my.ini

    MySQL Server Instance Configuration File

    ----------------------------------------------------------------------

    Generated by the MySQL Server Instance Configuration Wizard

    Installation Instructions

    ----------------------------------------------------------------------

    On Linux you can copy this file to /etc/my.cnf to set global options,

    mysql-data-dir/my.cnf to set server-specific options

    (@localstatedir@ for this installation) or to

    ~/.my.cnf to set user-specific options.

    On Windows you should keep this file in the installation directory

    of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To

    make sure the server reads the config file use the startup option

    "--defaults-file".

    To run run the server from the command line, execute this in a

    command line shell, e.g.

    mysqld --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"

    To install the server as a Windows service manually, execute this in a

    command line shell, e.g.

    mysqld --install MySQLXY --defaults-file="C:\Program Files\MySQL\MySQL Server X.Y\my.ini"

    And then execute this in a command line shell to start the server, e.g.

    net start MySQLXY

    Guildlines for editing this file

    ----------------------------------------------------------------------

    In this file, you can use all long options that the program supports.

    If you want to know the options a program supports, start the program

    with the "--help" option.

    More detailed information about the individual options can also be

    found in the manual.

    CLIENT SECTION

    ----------------------------------------------------------------------

    The following options will be read by MySQL client applications.

    Note that only client applications shipped by MySQL are guaranteed

    to read this section. If you want your own MySQL client program to

    honor these values, you need to specify it as an option during the

    MySQL client library initialization.

    [client]
    port=3306
    [mysql]
    default-character-set=latin1

    SERVER SECTION

    ----------------------------------------------------------------------

    The following options will be read by the MySQL Server. Make sure that

    you have installed the server correctly (see above) so it reads this

    file.

    [mysqld]

    The TCP/IP Port the MySQL Server will listen on

    port=3306

    #Path to installation directory. All paths are usually resolved relative to this.
    basedir="C:/Program Files (x86)/MySQL/MySQL Server 5.0/"
    to the database root
    datadir="C:/Program Files (x86)/MySQL/MySQL Server 5.0/Data/"

    The default character set that will be used when a new schema or table is

    created and no character set is defined

    default-character-set=latin1

    The default storage engine that will be used when create new tables when

    default-storage-engine=INNODB

    Set the SQL mode to strict

    sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

    The maximum amount of concurrent sessions the MySQL server will

    allow. One of these connections will be reserved for a user with

    SUPER privileges to allow the administrator to login even if the

    connection limit has been reached.

    max_connections=100

    Query cache is used to cache SELECT results and later return them

    without actual executing the same query once again. Having the query

    cache enabled may result in significant speed improvements, if your

    have a lot of identical queries and rarely changing tables. See the

    "Qcache_lowmem_prunes" status variable to check if the current value

    is high enough for your load.

    Note: In case your tables change very often or if your queries are

    textually different every time, the query cache may result in a

    slowdown instead of a performance improvement.

    query_cache_size=0

    The number of open tables for all threads. Increasing this value

    increases the number of file descriptors that mysqld requires.

    Therefore you have to make sure to set the amount of open files

    allowed to at least 4096 in the variable "open-files-limit" in

    section [mysqld_safe]

    table_cache=256

    Maximum size for internal (in-memory) temporary tables. If a table

    grows larger than this value, it is automatically converted to disk

    based table This limitation is for a single table. There can be many

    of them.

    tmp_table_size=18M

    How many threads we should keep in a cache for reuse. When a client

    disconnects, the client's threads are put in the cache if there aren't

    more than thread_cache_size threads from before. This greatly reduces

    the amount of thread creations needed if you have a lot of new

    connections. (Normally this doesn't give a notable performance

    improvement if you have a good thread implementation.)

    thread_cache_size=8
    #*** MyISAM Specific options

    The maximum size of the temporary file MySQL is allowed to use while

    recreating the index (during REPAIR, ALTER TABLE or LOAD DATA INFILE.

    If the file-size would be bigger than this, the index will be created

    through the key cache (which is slower).

    myisam_max_sort_file_size=100G

    If the temporary file used for fast index creation would be bigger

    than using the key cache by the amount specified here, then prefer the

    key cache method. This is mainly used to force long character keys in

    large tables to use the slower key cache method to create the index.

    myisam_max_extra_sort_file_size=100G

    If the temporary file used for fast index creation would be bigger

    than using the key cache by the amount specified here, then prefer the

    key cache method. This is mainly used to force long character keys in

    large tables to use the slower key cache method to create the index.

    myisam_sort_buffer_size=35M

    Size of the Key Buffer, used to cache index blocks for MyISAM tables.

    Do not set it larger than 30% of your available memory, as some memory

    is also required by the OS to cache rows. Even if you're not using

    MyISAM tables, you should still set it to 8-64M as it will also be

    used for internal temporary disk tables.

    key_buffer_size=25M

    Size of the buffer used for doing full table scans of MyISAM tables.

    Allocated per thread, if a full scan is needed.

    read_buffer_size=64K
    read_rnd_buffer_size=256K

    This buffer is allocated when MySQL needs to rebuild the index in

    REPAIR, OPTIMZE, ALTER table statements as well as in LOAD DATA INFILE

    into an empty table. It is allocated per thread so be careful with

    large settings.

    sort_buffer_size=256K

    #*** INNODB Specific options ***

    Use this option if you have a MySQL server with InnoDB support enabled

    but you do not plan to use it. This will save memory and disk space

    and speed up some things.

    #skip-innodb

    Additional memory pool that is used by InnoDB to store metadata

    information. If InnoDB requires more memory for this purpose it will

    start to allocate it from the OS. As this is fast enough on most

    recent operating systems, you normally do not need to change this

    value. SHOW INNODB STATUS will display the current amount used.

    innodb_additional_mem_pool_size=2M

    If set to 1, InnoDB will flush (fsync) the transaction logs to the

    disk at each commit, which offers full ACID behavior. If you are

    willing to compromise this safety, and you are running small

    transactions, you may set this to 0 or 2 to reduce disk I/O to the

    logs. Value 0 means that the log is only written to the log file and

    the log file flushed to disk approximately once per second. Value 2

    means the log is written to the log file at each commit, but the log

    file is only flushed to disk approximately once per second.

    innodb_flush_log_at_trx_commit=1

    The size of the buffer InnoDB uses for buffering log data. As soon as

    it is full, InnoDB will have to flush it to disk. As it is flushed

    once per second anyway, it does not make sense to have it very large

    (even with long transactions).

    innodb_log_buffer_size=1M

    InnoDB, unlike MyISAM, uses a buffer pool to cache both indexes and

    row data. The bigger you set this the less disk I/O is needed to

    access data in tables. On a dedicated database server you may set this

    parameter up to 80% of the machine physical memory size. Do not set it

    too large, though, because competition of the physical memory may

    cause paging in the operating system. Note that on 32bit systems you

    might be limited to 2-3.5G of user level memory per process, so do not

    set it too high.

    innodb_buffer_pool_size=47M

    Size of each log file in a log group. You should set the combined size

    of log files to about 25%-100% of your buffer pool size to avoid

    unneeded buffer pool flush activity on log file overwrite. However,

    note that a larger logfile size will increase the time needed for the

    recovery process.

    innodb_log_file_size=24M

    Number of threads allowed inside the InnoDB kernel. The optimal value

    depends highly on the application, hardware as well as the OS

    scheduler properties. A too high value may lead to thread thrashing.

    innodb_thread_concurrency=10

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  • P
    Moderatore •

    la sezione che interessa è questa

    
[mysqld]
# The TCP/IP Port the MySQL Server will listen on
port=3306

    è qui sotto che va aggiunto bind-address=192.168.xx.xx

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  • A
    Bannato User •

    Ma l'indirizzo IP che devo inserire di chi deve essere?

    Non solo ma va inserita cosi?

    [mysqld]

    The TCP/IP Port the MySQL Server will listen on

    port=3306
    bind-address=192.168.xx.xx

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  • P
    Moderatore •

    @a.marco92 said:

    Ma l'indirizzo IP che devo inserire di chi deve essere?

    Non solo ma va inserita cosi?

    [mysqld]

    The TCP/IP Port the MySQL Server will listen on

    port=3306
    bind-address=192.168.xx.xx

    è l'IP del computer su cui MySQL è in esecuzione

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  • A
    Bannato User •

    Ho provato ma dà quest'errore phpBB:

    Impossibile collegarsi al database, controlla il messaggio d’errore qui sotto.
    Access denied for user 'webnet32'@'ns30.altervista.org' (using password: YES)

    Ecco dove sta installato phpBB: webnet32.altervista.org
    Ecco invece dove sta installato MySQL: webnet32.dyndns.org

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  • P
    Moderatore •

    @a.marco92 said:

    Ho provato ma dà quest'errore phpBB:

    Impossibile collegarsi al database, controlla il messaggio d?errore qui sotto.
    Access denied for user 'webnet32'@'ns30.altervista.org' (using password: YES)

    Ecco dove sta installato phpBB: webnet32.altervista.org
    Ecco invece dove sta installato MySQL: webnet32.dyndns.org

    significa che l'utente non ha i permessi per accedere al database

    devi creare l'utente webnet32 e dargli tutti i permessi necessari

    lo puoi fare sia da shell che tramite phpmyadmin

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