折腾：
期间，去添加IP的限制：
<code>vi /etc/mongod.conf 26 # network interfaces 27 net: 28 port: 32018 29 bindIp: 127.0.0.1, 112.4.64.141 # Listen to specific IP </code>
结果竟然重启mongod出错：
<code>[root@naturling-general-01 ~]# systemctl restart mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. </code>
所以去试试：
<code>[root@naturling-general-01 ~]# journalctl -xe Apr 09 17:50:01 naturling-general-01 systemd[1]: Started Session 185 of user root. -- Subject: Unit session-185.scope has finished start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit session-185.scope has finished starting up. -- -- The start-up result is done. Apr 09 17:50:01 naturling-general-01 CROND[4627]: (root) CMD (/usr/lib64/sa/sa1 1 1) Apr 09 17:50:01 naturling-general-01 systemd[1]: Starting Session 185 of user root. -- Subject: Unit session-185.scope has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit session-185.scope has begun starting up. Apr 09 17:57:17 naturling-general-01 polkitd[497]: Registered Authentication Agent for unix-process:4637:8872553 (system bus name :1.388 [/usr/bin/pkttyagent --notify-fd 5 --fallback], o Apr 09 17:57:17 naturling-general-01 systemd[1]: Stopping SYSV: Mongo is a scalable, document-oriented database.... -- Subject: Unit mongod.service has begun shutting down -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit mongod.service has begun shutting down. Apr 09 17:57:27 naturling-general-01 mongod[4643]: Stopping mongod: [ OK ] Apr 09 17:57:27 naturling-general-01 systemd[1]: Starting SYSV: Mongo is a scalable, document-oriented database.... -- Subject: Unit mongod.service has begun start-up -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit mongod.service has begun starting up. Apr 09 17:57:27 naturling-general-01 runuser[4673]: pam_unix(runuser:session): session opened for user mongod by (uid=0) Apr 09 17:57:27 naturling-general-01 runuser[4673]: pam_unix(runuser:session): session closed for user mongod Apr 09 17:57:27 naturling-general-01 mongod[4662]: Starting mongod: [FAILED] Apr 09 17:57:27 naturling-general-01 systemd[1]: mongod.service: control process exited, code=exited status=1 Apr 09 17:57:27 naturling-general-01 systemd[1]: Failed to start SYSV: Mongo is a scalable, document-oriented database.. -- Subject: Unit mongod.service has failed -- Defined-By: systemd -- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel -- -- Unit mongod.service has failed. -- -- The result is failed. Apr 09 17:57:27 naturling-general-01 systemd[1]: Unit mongod.service entered failed state. Apr 09 17:57:27 naturling-general-01 systemd[1]: mongod.service failed. Apr 09 17:57:27 naturling-general-01 polkitd[497]: Unregistered Authentication Agent for unix-process:4637:8872553 (system bus name :1.388, object path /org/freedesktop/PolicyKit1/Authen lines 4967-5010/5010 (END) ... </code>
感觉是：
难道此处的127.0.0.1，不等于localhost？
然后本地重启mongod时，没有权限，所以报错了？
mongod Unregistered Authentication Agent for unix-process
mongo Unregistered Authentication Agent for unix-process
[Howto] Workaround failing MongoDB on RHEL/CentOS 7 – /home/liquidat
[SERVER-23863] MongoDB v3.2.5 crash due to permission denied execmem – SELinux CentOS 7 – MongoDB
说是和： SELinux有关？
linux – Mongodb not start because of polkitd – Stack Overflow
添加设置就可以了？
MongoDB 3.2.5 service fails to start in CentOS 7 – Google Groups
MongoDB fails starting as a service on CentOS 7 – Stack Overflow
“YAML files require spaces for indentation and not tabs.”
通过：
<code>[root@naturling-general-01 ~]# mongod -f /etc/mongod.conf about to fork child process, waiting until server is ready for connections. forked process: 5574 ERROR: child process failed, exited with error number 48 [root@naturling-general-01 ~]# </code>
确定没有语法格式错误
然后去试试：
<code>[root@naturling-general-01 ~]# systemctl stop mongod [root@naturling-general-01 ~]# systemctl start mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. [root@naturling-general-01 ~]# systemctl status mongod [0m mongod.service - SYSV: Mongo is a scalable, document-oriented database. Loaded: loaded (/etc/rc.d/init.d/mongod; bad; vendor preset: disabled) Active: failed (Result: exit-code) since Tue 2018-04-10 09:36:06 CST; 11s ago Docs: man:systemd-sysv-generator(8) Process: 4643 ExecStop=/etc/rc.d/init.d/mongod stop (code=exited, status=0/SUCCESS) Process: 5589 ExecStart=/etc/rc.d/init.d/mongod start (code=exited, status=1/FAILURE) Apr 10 09:36:06 naturling-general-01 systemd[1]: Starting SYSV: Mongo is a scalable, document-oriented database.... Apr 10 09:36:06 naturling-general-01 mongod[5589]: Error starting mongod. /var/run/mongodb/mongod.pid exists. Apr 10 09:36:06 naturling-general-01 systemd[1]: mongod.service: control process exited, code=exited status=1 Apr 10 09:36:06 naturling-general-01 systemd[1]: Failed to start SYSV: Mongo is a scalable, document-oriented database.. Apr 10 09:36:06 naturling-general-01 systemd[1]: Unit mongod.service entered failed state. Apr 10 09:36:06 naturling-general-01 systemd[1]: mongod.service failed. </code>
Unable to start MongoDB 3.0.2 service on CentOS 7 – Stack Overflow
把IP限制的配置，再改回：
<code> 27 net: 28 port: 32018 29 bindIp: 0.0.0.0 # Listen to all interfaces </code>
然后重启试试
结果问题依旧：
<code>[root@naturling-general-01 ~]# systemctl start mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. [root@naturling-general-01 ~]# systemctl restart mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. [root@naturling-general-01 ~]# </code>
所以，看来是哪里出了问题了：
重启CentOS7试试
问题依旧
<code>[root@naturling-general-01 ~]# systemctl status mongod [0m mongod.service - SYSV: Mongo is a scalable, document-oriented database. Loaded: loaded (/etc/rc.d/init.d/mongod; bad; vendor preset: disabled) Active: failed (Result: exit-code) since Tue 2018-04-10 09:40:26 CST; 20s ago Docs: man:systemd-sysv-generator(8) Apr 10 09:40:25 naturling-general-01 systemd[1]: Starting SYSV: Mongo is a scalable, document-oriented database.... Apr 10 09:40:25 naturling-general-01 runuser[1069]: pam_unix(runuser:session): session opened for user mongod by (uid=0) Apr 10 09:40:26 naturling-general-01 runuser[1069]: pam_unix(runuser:session): session closed for user mongod Apr 10 09:40:26 naturling-general-01 mongod[1048]: Starting mongod: [FAILED] Apr 10 09:40:26 naturling-general-01 systemd[1]: mongod.service: control process exited, code=exited status=1 Apr 10 09:40:26 naturling-general-01 systemd[1]: Failed to start SYSV: Mongo is a scalable, document-oriented database.. Apr 10 09:40:26 naturling-general-01 systemd[1]: Unit mongod.service entered failed state. Apr 10 09:40:26 naturling-general-01 systemd[1]: mongod.service failed. </code>
发现配置文件，所以去看看：
<code>[root@naturling-general-01 ~]# cat /etc/rc.d/init.d/mongod
#!/bin/bash
# mongod - Startup script for mongod
# chkconfig: 35 85 15
# description: Mongo is a scalable, document-oriented database.
# processname: mongod
# config: /etc/mongod.conf
. /etc/rc.d/init.d/functions
# NOTE: if you change any OPTIONS here, you get what you pay for:
# this script assumes all options are in the config file.
CONFIGFILE="/etc/mongod.conf"
OPTIONS=" -f $CONFIGFILE"
mongod=${MONGOD-/usr/bin/mongod}
MONGO_USER=mongod
MONGO_GROUP=mongod
...
</code>Mongod service failed to start – Graylog – Graylog Community
去看看SELINUX的配置：
<code>[root@naturling-general-01 ~]# cat /etc/selinux/ config final/ semanage.conf targeted/ tmp/ [root@naturling-general-01 ~]# cat /etc/selinux/config # This file controls the state of SELinux on the system. # SELINUX= can take one of these three values: # enforcing - SELinux security policy is enforced. # permissive - SELinux prints warnings instead of enforcing. # disabled - No SELinux policy is loaded. SELINUX=disabled # SELINUXTYPE= can take one of three two values: # targeted - Targeted processes are protected, # minimum - Modification of targeted policy. Only selected processes are protected. # mls - Multi Level Security protection. SELINUXTYPE=targeted [root@naturling-general-01 ~]# </code>
网上各种：
<code>SELINUX=permissive semanage port -a -t mongod_port_t -p tcp 27017 </code>
但是此处SELINUX已经是disabled
没有开启SELinux了啊
去看看：
<code>[root@naturling-general-01 ~]# grep mongod /var/log/audit/audit.log type=SERVICE_STOP msg=audit(1523158880.312:62481): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=mongod comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' type=CRED_ACQ msg=audit(1523158880.335:62482): pid=21353 uid=0 auid=4294967295 ses=4294967295 msg='op=PAM:setcred grantors=pam_rootok acct="mongod" exe="/usr/sbin/runuser" hostname=? addr=? terminal=? res=success’ … </code>
type=USER_START msg=audit(1523324425.529:35): pid=1069 uid=0 auid=4294967295 ses=4294967295 msg=’op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_unix acct=”mongod” exe=”/usr/sbin/runuser” hostname=? addr=? terminal=? res=success’
type=USER_END msg=audit(1523324426.254:36): pid=1069 uid=0 auid=4294967295 ses=4294967295 msg=’op=PAM:session_close grantors=pam_keyinit,pam_limits,pam_unix acct=”mongod” exe=”/usr/sbin/runuser” hostname=? addr=? terminal=? res=success’
type=CRED_DISP msg=audit(1523324426.254:37): pid=1069 uid=0 auid=4294967295 ses=4294967295 msg=’op=PAM:setcred grantors=pam_rootok acct=”mongod” exe=”/usr/sbin/runuser” hostname=? addr=? terminal=? res=success’
type=SERVICE_START msg=audit(1523324426.257:38): pid=1 uid=0 auid=4294967295 ses=4294967295 msg=’unit=mongod comm=”systemd” exe=”/usr/lib/systemd/systemd” hostname=? addr=? terminal=? res=failed’
type=SERVICE_START msg=audit(1523324583.115:71): pid=1 uid=0 auid=4294967295 ses=4294967295 msg=’unit=mongod comm=”systemd” exe=”/usr/lib/systemd/systemd” hostname=? addr=? terminal=? res=failed’
好像是最后几次的mongod的SERVICE_START是failed
然后去运行命令，结果找不到audit2allow：
<code>[root@naturling-general-01 ~]# grep mongod /var/log/audit/audit.log | audit2allow -m mongod > mongod.te -bash: audit2allow: command not found </code>
SELINUX=disabled mongod Job for mongod.service failed because the control process exited with error code
Unable to start MongoDB 3.0.2 service on CentOS 7 – Stack Overflow
去试试：
<code>[root@naturling-general-01 ~]# sudo setenforce 0 setenforce: SELinux is disabled </code>
问题依旧。
Can not start MongoDB 3.2.1 on CentOS 7 – Stack Overflow
linux – MongoDB Service Will Not Start After Initial Setup – Stack Overflow
MongoDB无法在CentOS 7上作为服务启动 – 错误码
感觉最像的还是配置文件，可能有问题？
下载下来
<code>[root@naturling-general-01 ~]# sz /etc/mongod.conf rz Starting zmodem transfer. Press Ctrl+C to cancel. Transferring mongod.conf... 100% 914 bytes 914 bytes/sec 00:00:01 0 Errors </code>
打开后：
没有看到问题，语法都是对的。
难道和端口变化有关系
去把端口改回27017
然后重启服务器，结果是可以的：
<code>[root@naturling-general-01 ~]# systemctl status mongod [0m mongod.service - SYSV: Mongo is a scalable, document-oriented database. Loaded: loaded (/etc/rc.d/init.d/mongod; bad; vendor preset: disabled) Active: active (running) since Tue 2018-04-10 10:23:53 CST; 18s ago Docs: man:systemd-sysv-generator(8) CGroup: /system.slice/mongod.service 1096 /usr/bin/mongod -f /etc/mongod.conf Apr 10 10:23:52 naturling-general-01 systemd[1]: Starting SYSV: Mongo is a scalable, document-oriented database.... Apr 10 10:23:52 naturling-general-01 runuser[1073]: pam_unix(runuser:session): session opened for user mongod by (uid=0) Apr 10 10:23:53 naturling-general-01 mongod[1054]: Starting mongod: [ OK ] Apr 10 10:23:53 naturling-general-01 systemd[1]: Started SYSV: Mongo is a scalable, document-oriented database.. [root@naturling-general-01 ~]# netstat -lanp | grep 27017 tcp 0 0 0.0.0.0:27017 0.0.0.0:* LISTEN 1096/mongod unix 2 [ ACC ] STREAM LISTENING 12999 1096/mongod /tmp/mongodb-27017.sock [root@naturling-general-01 ~]# </code>
-》那就奇怪了，为何之前的：
改了端口，重启mongo或重启服务器，是正常的，
而现在改了端口重启就失败了？？？
不管了，再去改成我们要的端口：
<code>vi /etc/mongod.conf </code>
26 # network interfaces
27 net:
28 port: 32018
29 bindIp: 0.0.0.0 # Listen to all interfaces
30 # bindIp: 127.0.0.1 # Listen to local interface only, comment to listen on all interfaces.
31 # bindIp: 127.0.0.1, 112.4.64.141 # Listen to specific IP
32 # port: 27017
然后看看效果，然后果然出错了：
<code>[root@naturling-general-01 ~]# systemctl restart mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. </code>
所以，现在锁定问题是端口改动，导致无法启动了
看来是端口需要加上访问权限？
【已解决】mongo启动失败：Failed to unlink socket file /tmp/mongodb-xxx.sock errno 1 Operation not permitted
最后证明是：sock文件没有权限，解决方案是删除掉sock文件，重启服务器即可。
【总结】
此处重启mongod出错：
Job for mongod.service failed because the control process exited with error code
的原因是：
现在mongod启用时mongod用户没有权限打开，之前某次用root创建的了sock文件
解决办法是：
删除掉改sock文件，重启服务器。
详见：
【已解决】mongo启动失败：Failed to unlink socket file /tmp/mongodb-xxx.sock errno 1 Operation not permitted
注意：
此处错误原因不是SELINUX（限制了端口）方面的问题，因为本身配置文件中：
/etc/selinux/config
已经是：
<code>SELINUX=disabled </code>
表示已关闭了SELINUX
也因此后来的：
<code>sudo setenforce 0 </code>
是没有效果的，因为本身已关闭了SELINUX
【后记】
然后正常启动mongod后，去client中测试看看，是否别的IP访问就会出错
然后此处的对应的IP的client处的连接，至少是成功的：
然后再去PyCharm多连接一个，结果也是可以看到的：
<code>> db.currentOp(true).inprog.forEach(function(d){if (d.client)printjson(d.client)})
"112.4.64.141:56260"
"127.0.0.1:34168"
>
> db.currentOp(true).inprog.forEach(function(d){if (d.client)printjson(d.client)})
"112.4.64.141:59012"
"112.4.64.141:59013"
"112.4.64.141:56260"
"127.0.0.1:34168"
</code>然后才发现，mongod的配置中，此时是没有IP限制的：
<code>bindIp: 0.0.0.0 </code>
去加上IP限制：
<code>bindIp: 127.0.0.1, 112.4.64.141 # Listen to specific IP </code>
看看效果，结果又出错了：
【已解决】mongo中给bindIp添加多个IP后出错：getaddrinfo failed Name or service not known
重启mongo后，还是出错：
<code>[root@naturling-general-01 ~]# systemctl restart mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. </code>
问题还是没有解决。
然后解决了：
【已解决】mongo中给bindIp添加多个IP后出错：getaddrinfo failed Name or service not known
后，想要去重启，结果发现：
【未解决】systemctl或service无法重启或启动mongod的服务mongod
算了，用reboot去重启CentOS 7服务器吧，然后：
【无法解决】尝试用mongo的bindIp去实现限制特定IP才能连接mongo服务
然后再去：
【已解决】配置mongod以允许内网其他服务器访问mongo服务
但是还是没有完全成功：
<code>[root@naturling-general-01 ~]# systemctl status mongod [0m mongod.service - SYSV: Mongo is a scalable, document-oriented database. Loaded: loaded (/etc/rc.d/init.d/mongod; bad; vendor preset: disabled) Active: failed (Result: exit-code) since Tue 2018-04-10 14:26:08 CST; 1min 31s ago Docs: man:systemd-sysv-generator(8) Process: 1270 ExecStart=/etc/rc.d/init.d/mongod start (code=exited, status=1/FAILURE) Apr 10 14:26:08 naturling-general-01 systemd[1]: Starting SYSV: Mongo is a scalable, document-oriented database.... Apr 10 14:26:08 naturling-general-01 mongod[1270]: Error starting mongod. /var/run/mongodb/mongod.pid exists. Apr 10 14:26:08 naturling-general-01 systemd[1]: mongod.service: control process exited, code=exited status=1 Apr 10 14:26:08 naturling-general-01 systemd[1]: Failed to start SYSV: Mongo is a scalable, document-oriented database.. Apr 10 14:26:08 naturling-general-01 systemd[1]: Unit mongod.service entered failed state. Apr 10 14:26:08 naturling-general-01 systemd[1]: mongod.service failed. </code>
算了，重启CentOS7服务器，然后，还是失败，但是是别的错误：
【已解决】mongo启动失败：connection /var/lib/mongo/WiredTiger.turtle handle-open open Permission denied
那再去加上前面的，服务器本机的内网/局域网/私有IP，看看结果如何
<code> 27 net: 28 port: 32018 29 bindIp: 127.0.0.1,172.16.141.197 # Listen to specific IP </code>
重启mongo，结果失败：
<code>[root@naturling-general-01 ~]# systemctl restart mongod Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. [root@naturling-general-01 ~]# systemctl stop mongod [root@naturling-general-01 ~]# sudo -u mongod mongod -f /etc/mongod.conf about to fork child process, waiting until server is ready for connections. forked process: 1362 ERROR: child process failed, exited with error number 48 </code>
去看log，发现是127.0.0.1:32018已经正在运行了：
<code>2018-04-10T15:33:15.772+0800 E NETWORK [initandlisten] listen(): bind() failed errno:98 Address already in use for socket: 127.0.0.1:32018 2018-04-10T15:33:15.772+0800 E NETWORK [initandlisten] addr already in use 2018-04-10T15:33:15.772+0800 E STORAGE [initandlisten] Failed to set up sockets during startup. 2018-04-10T15:33:15.772+0800 I CONTROL [initandlisten] dbexit: rc: 48 </code>
所以，要去真正的停止掉mongod才可以
而此处的systemctl stop mongod 又没用。
去想办法，去试试，换成用户mongod去执行：
systemctl stop mongod
是否可以？
结果需要root的密码：
<code>[root@naturling-general-01 ~]# sudo -u mongod systemctl stop mongod ==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units === Authentication is required to manage system services or units. Authenticating as: root Password: Failed to stop mongod.service: Connection timed out See system logs and 'systemctl status mongod.service' for details. [root@naturling-general-01 ~]# polkit-agent-helper-1: pam_authenticate failed: Authentication failure </code>
由于此处没有root密码，而是通过私钥登录服务器的
所以，干脆重启CentOS服务器吧
终于正常启动mongod了：
<code>[root@naturling-general-01 ~]# systemctl status mongod [0m mongod.service - SYSV: Mongo is a scalable, document-oriented database. Loaded: loaded (/etc/rc.d/init.d/mongod; bad; vendor preset: disabled) Active: active (running) since Tue 2018-04-10 15:37:29 CST; 20s ago Docs: man:systemd-sysv-generator(8) CGroup: /system.slice/mongod.service 1096 /usr/bin/mongod -f /etc/mongod.conf Apr 10 15:37:28 naturling-general-01 systemd[1]: Starting SYSV: Mongo is a scalable, document-oriented database.... Apr 10 15:37:28 naturling-general-01 runuser[1077]: pam_unix(runuser:session): session opened for user mongod by (uid=0) Apr 10 15:37:29 naturling-general-01 runuser[1077]: pam_unix(runuser:session): session closed for user mongod Apr 10 15:37:29 naturling-general-01 mongod[1058]: Starting mongod: [ OK ] Apr 10 15:37:29 naturling-general-01 systemd[1]: Started SYSV: Mongo is a scalable, document-oriented database.. </code>
【总结】
此处的mongod启动出错：
Job for mongod.service failed because the control process exited with error code
的原因是：
其实有多种多样，具体的情况，需要根据实际情况去找原因，再去解决。
其中，辅助的办法是：
参考提提示的：
<code>Job for mongod.service failed because the control process exited with error code. See "systemctl status mongod.service" and "journalctl -xe" for details. </code>
去运行：
<code>journalctl -xe </code>
去看看具体的错误。
比如此处的：
<code>Unregistered Authentication Agent for unix-process:4637:8872553 </code>
但是后来证明，无法根据此现象找到根本原因。
只是看起来像是：
端口权限方面的问题，有些人是SELINUX限制了端口导致的，而我此处没有开启SELINU，所以不是这方面的问题。
而真正解决问题的办法是：
此处主要是去看log文件
-》从中（先后多次）找到真正的具体的错误信息
-》然后才能知道错误原因
-〉然后才得以解决：
（1）错误：listen(): bind() failed errno:98 Address already in use for socket: 127.0.0.1:32018
办法：停止掉mongo后再重新启动：
如果和我一样，没有root用户密码，则：reboot重启服务器
有root密码：以mongod用户去停止mongo
sudo -u mongod systemctl stop mongod
（2）错误：getaddrinfo(” 112.4.64.141″) failed: Name or service not known
办法：确保bindIp中多个IP中间逗号分隔时，没有空格：
<code>bindIp: 127.0.0.1,112.4.64.141 </code>
详见：
【已解决】mongo中给bindIp添加多个IP后出错：getaddrinfo failed Name or service not known
（3）错误：WiredTiger (13) [1523341777:968015][1095:0x7fa3cf097dc0], file:WiredTiger.wt, connection: /var/lib/mongo/WiredTiger.turtle: handle-open: open: Permission denied
办法：确认
/var/lib/mongo
其下的所有的文件，包括此处的WiredTiger.turtle，对于此处的mongod用户，要有权限
-》可以考虑把所有文件的owner所有者，改为此处mongo 服务对应的所属用户：mongod:mongod
-》以及后续还有另外一个相关的：
/var/lib/mongo/journal/
中的文件，也是要确保有操作权限
-》具体写法：
<code>chown mongod:mongod /var/lib/mongo/WiredTiger.turtle chown mongod:mongod /var/lib/mongo/WiredTigerLAS.wt chown mongod:mongod /var/lib/mongo/journal/* </code>
详见：
【已解决】mongo启动失败：connection /var/lib/mongo/WiredTiger.turtle handle-open open Permission denied
（4）错误：Failed to unlink socket file /tmp/mongodb-32018.sock errno:1 Operation not permitted
办法：
删除这个sock文件：
<code>sudo rm /tmp/mongodb-32018.sock </code>
后，重启mongod服务，或直接重启服务器-》启动服务器会去启动mongod服务的
详见：
【已解决】mongo启动失败：Failed to unlink socket file /tmp/mongodb-xxx.sock errno 1 Operation not permitted
转载请注明：在路上 » 【已解决】添加了IP限制的mongod重启出错：Job for mongod.service failed because the control process exited with error code