<><FONT color=#f70909>来源:LinuxAid</FONT> </P> # C, m+ D) U8 b1 { t7 K- G+ O<>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>) K l! {" b; E0 S6 Y2 u# s8 f
<> 1Upgrade all client programs to use a 4.1.1 or newer client library. </P>! [* }# `' H1 ~7 N) X9 T) Z
<> 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>: J; S; |3 p% N. r& Q" N
<> 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> 2 H. ^7 y- `) F6 g* 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> 6 r1 X% i/ w9 b) u/ Q* \+ O<> 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> ; T2 }# P& v p }- j7 l2 r0 i<> -> <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> 9 x' n# w3 T! ?8 P<> 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> ) W% X, n9 o6 I8 r0 t: [( B1 H/ D<> my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>> FLUSH PRIVILEGES; </P> . i1 F) v9 g% u; t f! 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> . ^" C5 x5 b! V: x+ l<> 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 {( F: r7 T& z! R) l V<> 4Tell the server to use the older password hashing algorithm: </P> & O- M. M7 Y+ {/ R<> Start my<a href="http://hackbase.com/hacker" target="_blank" >sql</A>d with the --old-passwords option. </P>0 X, u+ ~/ Y9 f/ D
<> 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> . Z3 d" M& [9 \' w+ t$ t<> 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> - q% h0 ]5 d P, O0 z<> -> WHERE LENGTH(Password) > 16; </P> " d* A4 S+ o- q6 g<> 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>! M( l7 C8 Q3 V6 h% ~, t3 _1 d4 q
<> 恢复已经升级了口令到老样式 </P> . G6 w- O \9 \" f<> 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>& Y0 F5 f0 L* o5 E- P
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