Topic: Negali prisijugti is kito pc prie mysql

Sveiki, Turiu serverini pc, suinstaliuotas ten phpmyadmin, viskas gerai veikia, mysql ant to pacio pc veikia be priekaistu.
Bet dabar prireike prie ten esancios duomenu bazes prijugti kita kompiuteri, kaip nemeginau, man vis raso kad negali prisijugti, man gal reikia kitam kompiuteri kaska idiegti kad jis galetu prisijugti prie mysql ? nes kitame kompiuteri nieko neidiegta, o tik zaidymo serveris. Ar gali but kad tiesiog nepriema mysql kitu prisijugimu ?

Re: Negali prisijugti is kito pc prie mysql

Gali būti, kad:
a) mysql serveris yra sukonfigūruotas taip, kad nepriimtų prisijungimų iš išorės;
b) mysql serveryje ir nutolusiame serveriuose yra ugniasienės nustatymai, kurie neleidžia prisijungti;
c) nutolusiame serveryje yra nustatymai (pvz.: PHP), kurie neleidžia jungtis prie išronių resursų;
d) mysql serverio vartotojas, kuriuo jugniamasi, neturi teisių jungtis iš nutolusių adresų;

Taip, kad reikia visus šiuos dalykus patikrinti ir teisingai nusatyti (-;

Re: Negali prisijugti is kito pc prie mysql

Minde, aciu labai uz atsakimus, o gal dar galima kur gaut konkreciau, kaip issprest tas probemas?
Bet as ji pries metus idiegiau, nieko nekonfiguravau, prijugiau ka reikia ir viskas. ;/
bent jau del d) tai vartuotojas root su visom privilegijom, nebend dar kaskur galima kaska nustatyt.
Tam kitam serverije nera ir php idiegta, tai butina idiegt i kita serverini pc?

Re: Negali prisijugti is kito pc prie mysql

Pradžiai apie kokias operacines sistemas kalbame tuose serveriuose?

Nes jeigu vartotojas "root" be slaptažodžio, tai daug šansų, kad jis turės teises dirbti prisijungęs tik iš lokalaus kompiuterio ("localhost").

Beveik viską, kas susiję su MySQL valdymu galima rasti MySQL dokumentacijoje:
http://dev.mysql.com/doc/

O dėl nutolusio kompiuterio, tai jeigu ne PHP tai kažkokia programa kita, ir apie ją nieko nežinant sunku ką nors ir pasakyti, kaip ji veikia ar kodėl neveikia. Jeigu tai žaidimas, tai tikriausiai bus galimybė jungtis prie nutolusio kompiuterio.

5 (edited by Fukaka 2009-12-20 14:19:12)

Re: Negali prisijugti is kito pc prie mysql

Pastebejau ta, ir radau pirmam punktui dokumentacija:
http://dev.mysql.com/doc/refman/5.1/en/ … networking

Bet tiesa pasakius as sunkiai suprantu kur apskirtai man surast tuos failus kuriuos redaguot? ar cia per pati phpmyadmin reik keist?. As neuzsiemu programavimu, niekad neiskildavo problemu su mysql, gal uz tam tikra atligi, kad nors ir uz saskaitos papildima, vis sis tas, galetumet prisijugt prie remote desctop computer ir pasiziuret?
o root su slaptazodziu su slaaptazodziu

http://www.nwk.lt/images/1020.JPG

Re: Negali prisijugti is kito pc prie mysql

Tai pas tave yra Windows OS (-;

Iš screenshot'o matosi, kad vartotojui root suteiktos teisės iš visur (%) prisijungti;

Tau reikia susiradti failą "my.ini", ir pasižiūrėti jame, ar yra įjungtas tavo jau surastas "skip-networking" (kuris uždraudžia komunikavimą iš išorės).

7 (edited by Fukaka 2009-12-20 14:45:14)

Re: Negali prisijugti is kito pc prie mysql

Taip, naudojamas Widinows OS:
Turite omeni //appserw/mysql/my.ini ?

Nieko panasaus net neradau ka galeciau ;/

# 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 = cp1251

# 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:\AppServ/MySQL"

#Path to the database root
datadir="C:\AppServ/MySQL/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 = cp1251
character-set-server = cp1251
collation-server = cp1251_general_ci
init_connect = 'SET collation_connection = cp1251_general_ci'
init_connect = 'SET NAMES cp1251'

# 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"
sql-mode="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=16384

#
# For compatibility to other PHP MySQL function that still use old mysql connect.
# 
old_passwords   = 1

# 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=9M


# 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=17M

# 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=10M

# 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

log-slow-queries=mysql-slow.log
log-error=mysql.err

#*** 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.


# 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=17M

# 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=10M

# 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=8

Re: Negali prisijugti is kito pc prie mysql

Na, man neteko dirbti su appserv, bet yra porą kabaliukų, dėl ko negali prisijungti iš išorės:
a) Yra windows ugniasienė - kuris ir neleidžia jungtis prie 3306 port'o (MySQL port'as pagal nutylėjimą);
b) AppServ gali turėti specialius nustatymus, kurie leidžia jungtis iš išorės, pvz WAMP'as turi tokią funkcija "Put online", "Put offline", kas reguliuoja galimybes jungtis prie MySQL/WWW iš išorės.

Pabandyk su "netstat" komanda pažiūrėt ar tavo "serveris" klausosi 3306 port'o.

Re: Negali prisijugti is kito pc prie mysql

hmm. paziurejau su nestat -a. jaigu taip reikejo ziuret ir gavau stai tokius rezultatus.

http://www.nwk.lt/images/netstat.JPG

Tai kaip supratau visgi nepraeina tas portas?
o del AppServ pameginsiu isiaiskint ar yra galimibiu ijugt isjugt.

Re: Negali prisijugti is kito pc prie mysql

Panašu, kad kažkas veikia ant 3306 porto, ir kažkas jungiasi iš "SERVER".

Dar pabandyk: netstat -b -o -a -n

Parodys, kuri programa klausosi to port'o.

Gal tiesiog viskas gerai, tik neteisingi prisijungimo duomenys?

11 (edited by Fukaka 2009-12-20 16:16:29)

Re: Negali prisijugti is kito pc prie mysql

prisijugimo duomenis geri, tikrinau juos daug kartu ir bandziau nauduot visokius ip, ir vidi ir isorini ir t.t.
prisijugimo duomenis kopijuoti buvo is #1 serverio ir tik ip adresa reikejo keist.

o zaidymo consolei man stai tokia klaida ismeta
http://www.nwk.lt/images/errormysql.JPG
kaip matet sitas 10.20.30.40 ip irasytas ir phpmyadmin, o tai vidinis ip, bandziau ir visokius kitus ip, bet klaida visada tokia pati.

o del "netstat -b -o -a -n"
tai consolei taip ir rasyt? nes ismeta labai daug portu, ir ju tiek daug kad uzslenka uz lango. gal galima kaskaip paziuret butent sitam portui ? 3306

ar nepavargot dar su manim? ;))
aciu uz kantrybe ir pagalba

Re: Negali prisijugti is kito pc prie mysql

Gali ra6yti taip:

netstat -b -o -a -n > failas.txt

Ir tada txt faile pasižiūrėti visą info.

Taip pat pabandyk ant mysql serverio per phpMyAdmin arba per mysql klientą tokią užklausą:

SHOW VARIABLES LIKE "SKIP%"

Tada matysi ar leidžiama jungtis iš išorės ar ne.