<><FONT color=#f70909>来源:LinuxAid</FONT> </P>+ u2 {6 @* O" w1 ^
<>MYSQL 4.1以后, 采用了一种新的用户认证<a href="http://hackbase.com/network/protocol" target="_blank" >协议</A>, 对于老的客户端会出现不支持认证<a href="http://hackbase.com/network/protocol" target="_blank" >协议</A>的错误, 以下是官方网站的解决方法 r </P> ! d# K: R( Y, @<> 1Upgrade all client programs to use a 4.1.1 or newer client library. </P>& M/ V+ v. ~2 Z. `+ j. b
<> 更新客户端库,这需要更新PHP的扩展库,对于老的api PHP已经不提供了这样的扩展库了 </P> & |8 l7 q: ?6 R+ K# ~3 q3 U" H( R<> 2When connecting to the server with a pre-4.1 client program, use an account that still has a pre-4.1-style password. </P> k: Y& E- N! Y0 A/ o
<> 使用以前建立的账号连接,对于在新的认证<a href="http://hackbase.com/network/protocol" target="_blank" >协议</A>下建立的<a href="http://hackbase.com/skill" target="_blank" >账户</A>就不行了 </P> K% z7 }/ A1 ]9 m8 {9 X! y<> 3Reset the password to pre-4.1 style for each user that needs to use a pre-4.1 client program. This can be done using the SET PASSWORD statement and the OLD<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>ASSWORD() function: my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>> SET PASSWORD FOR </P>9 t7 m& `0 e/ K) R. B
<> -> <a href=" target="_blank" >_</A>user'@'some<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>host'">'some<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>user'@'some<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>host'</A> = OLD<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>ASSWORD('newpwd'); </P>" B" W9 ?- H8 x+ W
<> Alternatively, use UPDATE and FLUSH PRIVILEGES: my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>> UPDATE my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>.user SET Password = OLD<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>ASSWORD('newpwd') -> WHERE Host = 'some<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>host' AND User = 'some<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>user'; </P> ! ~/ p: b% I: V G" L<> my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>> FLUSH PRIVILEGES; </P>* v7 A- j/ \ p" p* d$ z( S
<> Substitute the password you want to use for ``newpwd'' in the preceding examples. MySQL cannot tell you what the original password was, so you'll need to pick a new one. </P> - e7 v* g+ g4 v/ o<> 这是一个不错的办法,新建立的账号采用老式的加密<a href="http://hackbase.com/network/protocol" target="_blank" >协议</A> </P> % X" o8 w# K) H! N* S+ ~& x/ D* |<> 4Tell the server to use the older password hashing algorithm: </P>$ y! D; J5 | ^2 q# q8 s! \) c1 S
<> Start my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>d with the --old-passwords option. </P> ' W6 |9 x/ D- _* Z% a<> 这样新认证<a href="http://hackbase.com/network/protocol" target="_blank" >协议</A>的优点就没法使用了 </P> 8 s. Y" w+ F6 m4 {<> 5Assign an old-format password to each account that has had its password updated to the longer 4.1 format. You can identify these accounts with the following query: my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>> SELECT Host, User, Password FROM my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>.user </P>( J R$ i1 H. c! E: M
<> -> WHERE LENGTH(Password) > 16; </P> * |" i9 h" w/ k8 [( Q$ K<> For each account record displayed by the query, use the Host and User values and assign a password using the OLD<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>ASSWORD() function and either SET PASSWORD or UPDATE, as described earlier. </P>, R, W6 N3 ^ N* \% b: Q
<> 恢复已经升级了口令到老样式 </P>+ l# e3 I+ k8 \
<> 本文参照了 <a href="http://dev.my<a%20href=/" target="_blank" >sql</A>.com/doc/my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>/en/Old<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>client.html">http://dev.my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>.com/doc/my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>/en/Old<a href="http://www1.hackbase.com/network/server/200501209617.htm#" target="_blank" >_</A>client.html</A> </P>2 L/ R7 }6 }" W* a0 b# F+ \
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