Authentication SSH公钥认证不需要'；t仅在特殊用户上工作
在CentOS 6.8上为SSH服务器设置公钥身份验证时遇到问题。奇怪的是，当我使用postgres用户登录时，它运行良好，但当我使用安装barman自动创建的“barman”用户登录时，它总是需要密码 “postgres”用户的主目录和barman用户的主目录位于同一文件夹中。我认为问题与sshd配置无关，试图将酒吧招待的主路径、.ssh路径和授权密钥的权限设置为与postgres相同。但它仍然不起作用。 这是我在运行ssh localhost-vvv之后得到的结果：Authentication SSH公钥认证不需要'；t仅在特殊用户上工作,authentication,ssh,centos,barman,Authentication,Ssh,Centos,Barman,在CentOS 6.8上为SSH服务器设置公钥身份验证时遇到问题。奇怪的是，当我使用postgres用户登录时，它运行良好，但当我使用安装barman自动创建的“barman”用户登录时，它总是需要密码 “postgres”用户的主目录和barman用户的主目录位于同一文件夹中。我认为问题与sshd配置无关，试图将酒吧招待的主路径、.ssh路径和授权密钥的权限设置为与postgres相同。但它仍然不起作用。 这是我在运行ssh localhost-vvv之后得到的结果： OpenSSH_
OpenSSH_5.3p1, OpenSSL 1.0.1e-fips 11 Feb 2013
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug2: ssh_connect: needpriv 0
debug1: Connecting to localhost [::1] port 22.
debug1: Connection established.
debug3: Not a RSA1 key file /var/lib/barman/.ssh/id_rsa.
debug2: key_type_from_name: unknown key type '-----BEGIN'
debug3: key_read: missing keytype
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug3: key_read: missing whitespace
debug2: key_type_from_name: unknown key type '-----END'
debug3: key_read: missing keytype
debug1: identity file /var/lib/barman/.ssh/id_rsa type 1
debug1: identity file /var/lib/barman/.ssh/id_rsa-cert type -1
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3
debug1: match: OpenSSH_5.3 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3
debug2: fd 3 setting O_NONBLOCK
debug1: SSH2_MSG_KEXINIT sent
debug3: Wrote 960 bytes for a total of 981
debug1: SSH2_MSG_KEXINIT received
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14- sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa-cert-v01@openssh.com,ssh-dss- cert-v01@openssh.com,ssh-rsa-cert-v00@openssh.com,ssh-dss-cert-v00@openssh.com,ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256- ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit: none,zlib@openssh.com,zlib
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: kex_parse_kexinit: diffie-hellman-group-exchange-sha256,diffie-hellman-group-exchange-sha1,diffie-hellman-group14-sha1,diffie-hellman-group1-sha1
debug2: kex_parse_kexinit: ssh-rsa,ssh-dss
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: aes128-ctr,aes192-ctr,aes256-ctr,arcfour256,arcfour128,aes128-cbc,3des-cbc,blowfish-cbc,cast128-cbc,aes192-cbc,aes256-cbc,arcfour,rijndael-cbc@lysator.liu.se
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac- sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-sha2-256,hmac-sha2-512,hmac-ripemd160,hmac-ripemd160@openssh.com,hmac-sha1-96,hmac-md5-96
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit: none,zlib@openssh.com
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit:
debug2: kex_parse_kexinit: first_kex_follows 0
debug2: kex_parse_kexinit: reserved 0
debug2: mac_setup: found hmac-md5
debug1: kex: server->client aes128-ctr hmac-md5 none
debug2: mac_setup: found hmac-md5
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug3: Wrote 24 bytes for a total of 1005
debug2: dh_gen_key: priv key bits set: 139/256
debug2: bits set: 514/1024
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug3: Wrote 144 bytes for a total of 1149
debug3: check_host_in_hostfile: host localhost filename /var/lib/barman/.ssh/known_hosts
debug3: check_host_in_hostfile: host localhost filename /var/lib/barman/.ssh/known_hosts
debug3: check_host_in_hostfile: match line 1
debug1: Host 'localhost' is known and matches the RSA host key.
debug1: Found key in /var/lib/barman/.ssh/known_hosts:1
debug2: bits set: 523/1024
debug1: ssh_rsa_verify: signature correct
debug2: kex_derive_keys
debug2: set_newkeys: mode 1
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug3: Wrote 16 bytes for a total of 1165
debug2: set_newkeys: mode 0
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug3: Wrote 48 bytes for a total of 1213
debug2: service_accept: ssh-userauth
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug2: key: /var/lib/barman/.ssh/id_rsa (0x7f6ef1fcc740)
debug3: Wrote 64 bytes for a total of 1277
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug3: start over, passed a different list publickey,gssapi-keyex,gssapi-with-mic,password
debug3: preferred gssapi-keyex,gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_lookup gssapi-keyex
debug3: remaining preferred: gssapi-with-mic,publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-keyex
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug2: we did not send a packet, disable method
debug3: authmethod_lookup gssapi-with-mic
debug3: remaining preferred: publickey,keyboard-interactive,password
debug3: authmethod_is_enabled gssapi-with-mic
debug1: Next authentication method: gssapi-with-mic
debug3: Trying to reverse map address ::1.
debug1: Unspecified GSS failure. Minor code may provide more information
Credentials cache file '/tmp/krb5cc_498' not found
debug1: Unspecified GSS failure. Minor code may provide more information
Credentials cache file '/tmp/krb5cc_498' not found
debug1: Unspecified GSS failure. Minor code may provide more information
debug1: Unspecified GSS failure. Minor code may provide more information
Credentials cache file '/tmp/krb5cc_498' not found
debug2: we did not send a packet, disable method
debug3: authmethod_lookup publickey
debug3: remaining preferred: keyboard-interactive,password
debug3: authmethod_is_enabled publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /var/lib/barman/.ssh/id_rsa
debug3: send_pubkey_test
debug2: we sent a publickey packet, wait for reply
debug3: Wrote 368 bytes for a total of 1645
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug2: we did not send a packet, disable method
debug3: authmethod_lookup password
debug3: remaining preferred: ,password
debug3: authmethod_is_enabled password
debug1: Next authentication method: password
barman@localhost's password:
OpenSSH_5.3p1，OpenSSL 1.0.1e-fips 2013年2月11日
debug1:读取配置数据/etc/ssh/ssh\u config
debug1:将选项应用于*
debug2:ssh\u connect:needpriv 0
debug1:连接到本地主机[：：1]端口22。
debug1:已建立连接。
debug3：不是RSA1密钥文件/var/lib/barman/.ssh/id\u rsa。
debug2:密钥类型\u from\u name:未知密钥类型'----BEGIN'
debug3:密钥读取：缺少密钥类型
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug3:键读取：缺少空格
debug2:密钥类型\u from\u name:未知密钥类型'----END'
debug3:密钥读取：缺少密钥类型
debug1:identity文件/var/lib/barman/.ssh/id\u rsa类型1
debug1:identity file/var/lib/barman/.ssh/id\u rsa-cert类型-1
debug1：远程协议版本2.0，远程软件版本OpenSSH_5.3
debug1:match:OpenSSH_5.3 pat OpenSSH*
debug1:启用协议2.0的兼容模式
debug1:本地版本字符串SSH-2.0-OpenSSH_5.3
调试2:fd 3设置O_非块
debug1:SSH2\u MSG\u KEXINIT已发送
debug3:写入960字节，总计981字节
debug1:SSH2\u MSG\u KEXINIT已收到
debug2:kex_parse_kexinit:diffie-hellman-group-exchange-sha256，diffie-hellman-group-exchange-sha1，diffie-hellman-group14-sha1，diffie-hellman-group1-sha1
debug2:kex_parse_kexinit:ssh rsa证书-v01@openssh.com，ssh-dss-cert-v01@openssh.com，ssh rsa证书-v00@openssh.com，ssh-dss证书-v00@openssh.com，ssh-rsa，ssh-dss
debug2:kex_parse_kexinit:aes128 ctr，aes192 ctr，aes256-ctr，arcfour256，arcfour128，aes128 cbc，3des cbc，河豚cbc，cast128 cbc，aes192 cbc，aes256 cbc，arcfour，rijndael-cbc@lysator.liu.se
debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se
debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-512，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96
debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-512，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96
debug2:kex_parse_kexinit:none，zlib@openssh.com，zlib
debug2:kex_parse_kexinit:none，zlib@openssh.com，zlib
debug2:kex_parse_kexinit:
debug2:kex_parse_kexinit:
debug2:kex_parse_kexinit:first_kex_跟随0
debug2:kex_parse_kexinit:保留0
debug2:kex_parse_kexinit:diffie-hellman-group-exchange-sha256，diffie-hellman-group-exchange-sha1，diffie-hellman-group14-sha1，diffie-hellman-group1-sha1
debug2:kex_parse_kexinit:ssh rsa，ssh dss
debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se
debug2:kex_parse_kexinit:aes128 ctr、aes192 ctr、aes256 ctr、arcfour256、arcfour128、aes128 cbc、3des cbc、河豚cbc、cast128 cbc、aes192 cbc、aes256 cbc、arcfour、rijndael-cbc@lysator.liu.se
debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-512，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96
debug2:kex_parse_kexinit:hmac-md5，hmac-sha1，umac-64@openssh.com，hmac-sha2-256，hmac-sha2-512，hmac-ripemd160，hmac-ripemd160@openssh.com，hmac-sha1-96，hmac-md5-96
debug2:kex_parse_kexinit:none，zlib@openssh.com
debug2:kex_parse_kexinit:none，zlib@openssh.com
debug2:kex_parse_kexinit:
debug2:kex_parse_kexinit:
debug2:kex_parse_kexinit:first_kex_跟随0
debug2:kex_parse_kexinit:保留0
debug2:mac_安装程序：找到hmac-md5
debug1:kex:server->client aes128 ctr hmac-md5无
debug2:mac_安装程序：找到hmac-md5
debug1:kex:客户端->服务器aes128 ctr hmac-md5无
debug1:SSH2\u MSG\u KEX\u DH\u GEX\u请求（1024用户主目录中的授权密钥文件具有错误的上下文。在本例中，该文件的上下文为“unconfined\u:object\r:httpd\u sys\u content\u:s0”。正在运行的sshd上下文无法访问此上下文，导致SELinux拒绝访问该文件。如果无法访问该文件，则密钥身份验证失败。
运行以下命令将其重置：
chcon -R unconfined_u:object_r:user_home_t:s0 /path/to/users/homedirectory/.ssh/
授权密钥文件