How to use the gssftp service that comes with Linux
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RedHat and CentOS both come with a gssftp service that can be used as follows:
[root@linux local]# cd /etc/xinetd.d [root@linux xinetd.d]# ls chargen cups-lpd daytime-udp echo-udp gssftp krb5-telnet rsync time-udp chargen-udp daytime echo eklogin klogin kshell time
Edit the gssftp file by changing server_args to-l and disable to no:
[root@linux xinetd.d]# vi gssftp[root@linux xinetd.d]# vi gssftp# default: off# description: The kerberized FTP server accepts FTP connections \# that can be authenticated with Kerberos 5.service ftp{flags = REUSEsocket_type = streamwait = nouser = rootserver = /usr/kerberos/sbin/ftpd#server_args = -l -aserver_args = -llog_on_failure += USERID#disable = yesdisable = no}
Restart xinetd service:
[root@linux xinetd.d]# service xinetd restart Stopping xinetd: [ OK ] Starting xinetd: [ OK ]
Port 21 is open:
[root@linux xinetd.d]# netstat -tnlp Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name tcp 0 0 0.0.0.0:21 0.0.0.0:* LISTEN 22543/xinetd
If the firewall does not open port, open port 21 and restart the firewall service:
[root@linux xinetd.d]# vi /etc/sysconfig/iptables [root@linux xinetd.d]# service iptables restart Flushing firewall rules: [ OK ] Setting chains to policy ACCEPT: filter [ OK ] Unloading iptables modules: [ OK ] Applying iptables firewall rules: [ OK ]
This FTP service is available, you can use linux system user login, but gssftp is not safe enough, temporary emergency or internal use can be, stable FTP service or recommended to use vsftp to build.
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