| IP | Hostname | Remark |
|---|---|---|
| 192.168.88.12 | ftptest | Turn off the firewall |
Part blog (FTP description and configuration): HTTPS: //blog.csdn.net/qq_20027745/article/details/104760514
4.FTP black list configuration
user_list: as the user whitelist or blacklist, or invalid list. Completely determined by userlist_enable and userlist_deny these two parameters.
ftpusers: only user blacklist, without any parameter limits
①FTP blacklist file / etc / vsftpd / ftpusers
[root@ftptest ~]# useradd test1 //创建用户
[root@ftptest ~]# passwd test1 //设置密码
[root@ftptest ~]# vi /etc/vsftpd/ftpusers
test1 //添加到文件末尾，不要有多余空格
Use File Zilla test access this FTP, login attempt will fail to test1
② / etc / vsftpd / user_list file
[vi /etc/vsftpd/vsfptd.conf // modify vsftpd service configuration]
userlist_enable=YES userlist_deny=YES 黑名单，拒绝文件中的用户FTP访问
userlist_enable=YES userlist_deny=NO 白名单，拒绝除文件中的用户外的用户FTP访问
userlist_enable=NO userlist_deny=YES/NO 无效名单，表示没有对任何用户限制FTP访问
In short, to get user_list effective, userlist_enable = YES
When configured as userlist_enable = YES userlist_deny = YES
[root@ftptest ~]# vi /etc/vsftpd/vsftpd.conf
userlist_deny=YES //修改为YES
userlist_enable=YES //修改为YES
[root@ftptest ~]# useradd test2
[root@ftptest ~]# passwd test2
[root@ftptest ~]# vi /etc/vsftpd/user_list
test2 //添加到文件末尾，不要有多余空格
[root@ftptest ~]# service vsftpd restart
Access this FTP, test2 attempt to login fails, then user_list blacklist.
When configured as userlist_enable = YES userlist_deny = NO
[root@ftptest ~]# vi /etc/vsftpd/vsftpd.conf
userlist_deny=NO //修改为YES
userlist_enable=YES //修改为YES
##user_list文件保持不变
[root@ftptest ~]# service vsftpd restart
Access this FTP, test2 try to log in successfully, this time user_list white list.
NFS Basic Configuration
| IP | Hostname | Remark |
|---|---|---|
| 192.168.88.12 | NFSSERVER | Server |
| 192.168.88.13 | nfsclient | Client |
1. were installed in the server and client nfs-utils, rpcbind and start
// turn off the firewall and selinux in advance, so as not to affect the results.
# yum install -y nfs-utils rpcbind
# systemctl start nfs
# systemctl enable nfs
# systemctl start rpcbind
# systemctl enable rpcbind
2. Create a shared directory server
[root@nfsserver ~]# mkdir /data
[root@nfsserver ~]# mkdir /data/public
[root@nfsserver ~]# mkdir /data/test
[root@nfsserver ~]# chown -R nfsnobody:nfsnobody /data
[root@nfsserver ~]# chmod -R 755 /data
[root@nfsserver ~]# ll /data/
total 0
drwxr-xr-x. 2 nfsnobody nfsnobody 6 Mar 11 00:52 linux
drwxr-xr-x. 2 nfsnobody nfsnobody 6 Mar 11 00:52 public
drwxr-xr-x. 2 nfsnobody nfsnobody 6 Mar 11 00:52 test
3. Configure nfs server configuration file
[root@nfsserver ~]# vi /etc/exports //内容如下
/tmp *(rw,no_root_squash)
/data/public 192.168.88.0/24(rw)
/data/test 192.168.88.13(rw)
May be added in parentheses behind options:
RW: write
ro: read-only
sync: synchronization pattern, while writing data to the hard disk and memory, slower but secure
async: asynchronous mode, the priority data stored in the memory, and then written to disk, but faster unsafe
root_squash: when the NFS client access to the root administrator privileges and general user as
no_root_squash: when the NFS client access to the root administrator, the highest authority
all_squash: whether NFS client account what access permissions are ordinary users
anonuid / anongid: all_squash and root_squash and used together, for the specified user using the NFS uid is defined and GID, required the presence of their respective native uid and gid.
4. Restart nfs service
[root@nfsserver ~]# systemctl restart nfs
//systemctl reload nfs 也可直接使用重新加载nfs配置
5. In the client view shared directory listing
[root@nfsclient ~]# showmount -e 192.168.88.12
Export list for 192.168.88.12:
/tmp *
/data/public 192.168.88.0/24
/data/test 192.168.88.13
6. Client to mount and read and write permissions test
[root@nfsclient ~]# mount -t nfs 192.168.88.12:/data/public /opt/
[root@nfsclient ~]# df -hT
Filesystem Type Size Used Avail Use% Mounted on
/dev/mapper/centos-root xfs 50G 3.4G 47G 7% /
devtmpfs devtmpfs 2.9G 0 2.9G 0% /dev
tmpfs tmpfs 2.9G 0 2.9G 0% /dev/shm
tmpfs tmpfs 2.9G 8.6M 2.9G 1% /run
tmpfs tmpfs 2.9G 0 2.9G 0% /sys/fs/cgroup
/dev/mapper/centos-home xfs 46G 33M 46G 1% /home
/dev/sda1 xfs 497M 125M 373M 26% /boot
tmpfs tmpfs 586M 0 586M 0% /run/user/0
192.168.88.12:/data/public nfs4 50G 1.1G 49G 3% /opt
[root@nfsclient ~]# touch /opt/test.txt
[root@nfsclient ~]# echo '666' > /opt/test.txt
[root@nfsclient ~]# cat /opt/test.txt
666
7. The client is configured to automatically mount (Both techniques)
[root@nfsclient ~]# vi /etc/rc.local
mount -t nfs 192.168.88.12:/data/public /opt //添加到文件末尾
[root@nfsclient ~]# vi /etc/fstab
192.168.88.12:/data/public /opt nfs defaults 0 0 //添加到文件末尾
