{"id":6410,"date":"2016-12-02T08:02:30","date_gmt":"2016-12-02T00:02:30","guid":{"rendered":"http:\/\/rmohan.com\/?p=6410"},"modified":"2016-12-02T08:02:30","modified_gmt":"2016-12-02T00:02:30","slug":"change-mysql-root-password-on-centos7","status":"publish","type":"post","link":"https:\/\/mohan.sg\/?p=6410","title":{"rendered":"Change mysql root password on Centos7"},"content":{"rendered":"

dit<\/strong> the initial root password on install can be found by running<\/p>\n

grep <\/span>'temporary password'<\/span> \/<\/span>var<\/span>\/<\/span>log<\/span>\/<\/span>mysqld<\/span>.<\/span>log<\/span><\/code><\/pre>\n
http:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/linux-installation-yum-repo.html<\/a><\/p>\n
\n
    \n
  1. systemd<\/code> is now used to look after mySQL instead of mysqld_safe<\/code> (which is why you get the -bash: mysqld_safe: command not found<\/code> error – it’s not installed)<\/li>\n
  2. The user<\/code> table structure has changed.<\/li>\n<\/ol>\n
    So to reset the root password, you still start mySQL with --skip-grant-tables<\/code> options and update the user<\/code> table, but how you do it has changed.<\/p>\n
    1.<\/span> Stop mysql<\/span>:<\/span>\r\nsystemctl stop mysqld\r\n\r\n<\/span>2.<\/span> Set<\/span> the mySQL environment <\/span>option<\/span> \r\nsystemctl set-environment MYSQLD_OPTS<\/span>=<\/span>\"--skip-grant-tables\"<\/span>\r\n\r\n3.<\/span> Start<\/span> mysql usig the options you just <\/span>set<\/span>\r\nsystemctl <\/span>start<\/span> mysqld\r\n\r\n<\/span>4.<\/span> Login <\/span>as<\/span> root\r\nmysql <\/span>-<\/span>u root\r\n\r\n<\/span>5.<\/span> Update<\/span> the root <\/span>user<\/span> password <\/span>with<\/span> these mysql commands\r\nmysql<\/span>><\/span> UPDATE<\/span> mysql<\/span>.<\/span>user<\/span> SET<\/span> authentication_string <\/span>=<\/span> PASSWORD<\/span>(<\/span>'MyNewPassword'<\/span>)<\/span>\r\n    -><\/span> WHERE<\/span> User<\/span> =<\/span> 'root'<\/span> AND<\/span> Host <\/span>=<\/span> 'localhost'<\/span>;<\/span>\r\nmysql<\/span>><\/span> FLUSH PRIVILEGES<\/span>;<\/span>\r\nmysql<\/span>><\/span> quit\r\n\r\n<\/span>6.<\/span> Stop mysql\r\nsystemctl stop mysqld\r\n\r\n<\/span>7.<\/span> Unset the mySQL envitroment <\/span>option<\/span> so it starts normally next time\r\nsystemctl unset-environment MYSQLD_OPTS\r\n\r\n<\/span>8.<\/span> Start<\/span> mysql normally<\/span>:<\/span>\r\nsystemctl <\/span>start<\/span> mysqld\r\n\r\nTry <\/span>to<\/span> login <\/span>using<\/span> your new password<\/span>:<\/span>\r\n7.<\/span> mysql <\/span>-<\/span>u root <\/span>-<\/span>p<\/span><\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
    dit the initial root password on install can be found by running<\/p>\n
     grep ‘temporary password’ \/var\/log\/mysqld.log <\/p>\n
    http:\/\/dev.mysql.com\/doc\/refman\/5.7\/en\/linux-installation-yum-repo.html<\/p>\n
     systemd is now used to look after mySQL instead of mysqld_safe (which is why you get the -bash: mysqld_safe: command not found error – it’s not installed) The user table structure has changed. <\/p>\n
    So to reset the root […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"_links":{"self":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/6410"}],"collection":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6410"}],"version-history":[{"count":1,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/6410\/revisions"}],"predecessor-version":[{"id":6411,"href":"https:\/\/mohan.sg\/index.php?rest_route=\/wp\/v2\/posts\/6410\/revisions\/6411"}],"wp:attachment":[{"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6410"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6410"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mohan.sg\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6410"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}