<><FONT color=#f70909>来源:LinuxAid</FONT> </P>% P3 G0 o" h* {5 g
<>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>9 T% q, s0 I0 a# ` g
<> 1Upgrade all client programs to use a 4.1.1 or newer client library. </P>9 ^) y# s2 s5 ~
<> 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>* Y9 R" J3 l' q
<> 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> * g# n! V: q7 ^9 r<> 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>( x% U' T8 T0 j8 m7 v- [' L5 E1 t
<> 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> : O% r, ~0 l& S/ 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> % r2 Z7 z) [2 ^9 V3 y$ ~$ k<> 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> ! Y. c9 Y1 r" K* k+ M<> my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>> FLUSH PRIVILEGES; </P> 3 a9 e0 p3 H2 V7 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>% ]- ~) K' k: h( d! Z6 e9 e. }
<> 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> 8 Y) z- T# N7 l6 V/ U& \, u<> 4Tell the server to use the older password hashing algorithm: </P> / }) W4 ~5 e q: q: q2 x- b( u. W<> Start my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>d with the --old-passwords option. </P> 2 d) R) O; h9 p# U m' F<> 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>4 @+ u; U$ |- E' `9 {1 P7 Z
<> 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>. N& ]! f) @: M4 i& l# p
<> -> WHERE LENGTH(Password) > 16; </P> 3 G5 H7 w' x. ~4 Y<> 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> 6 Q" p( ]+ B9 k' R$ \& ]9 ~2 W<> 恢复已经升级了口令到老样式 </P>) X9 \. V/ X! R( |/ K
<> 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 o! Z2 K& b9 @5 k2 a# }/ w
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