소켓 바인딩 오류로 인해 proFTPD가 작동하지 않습니다.

2024-5-14 • tag-icon

실행 중이고 서버로 DietPi선택된 내 장치 중 하나에 FTP 서버를 설정하려고 합니다 .proFTPD

소프트웨어를 설치하고 찾은 일부 설정 정보를 따랐습니다.여기. 그런데 서비스가 실행되지 않는 것을 발견했습니다. via에서 찾으려고 노력했지만 ps aux | grep proftpd성공하지 못했습니다.

보낸 후: systemclt status proftpd.service다음 메시지가 나타납니다.

● proftpd.service - LSB: Starts ProFTPD daemon
   Loaded: loaded (/etc/init.d/proftpd; generated)
   Active: failed (Result: exit-code) since Tue 2021-04-13 22:58:49 BST; 9s ago
     Docs: man:systemd-sysv-generator(8)
  Process: 26998 ExecStart=/etc/init.d/proftpd start (code=exited, status=1/FAILURE)

Apr 13 22:58:48 DietPi systemd[1]: Starting LSB: Starts ProFTPD daemon...
Apr 13 22:58:49 DietPi proftpd[26998]: Starting ftp server: proftpd2021-04-13 22:58:49,163 DietPi proftpd[2700
5]: mod_ctrls/0.9.5: error: unable to bind to local socket: Address already in use
Apr 13 22:58:49 DietPi proftpd[26998]: 2021-04-13 22:58:49,242 DietPi proftpd[27005]: error: unable to stat() 
/var/log/proftpd: No such file or directory
Apr 13 22:58:49 DietPi proftpd[26998]: 2021-04-13 22:58:49,244 DietPi proftpd[27005]: mod_ctrls/0.9.5: unable 
to open ControlsLog '/var/log/proftpd/controls.log': No such file or directory
Apr 13 22:58:49 DietPi proftpd[26998]: 2021-04-13 22:58:49,246 DietPi proftpd[27005]: fatal: ControlsLog: unab
le to open '/var/log/proftpd/controls.log': No such file or directory on line 68 of '/etc/proftpd/proftpd.conf'
Apr 13 22:58:49 DietPi proftpd[26998]:  failed!
Apr 13 22:58:49 DietPi systemd[1]: proftpd.service: Control process exited, code=exited, s
tatus=1/FAILURE
Apr 13 22:58:49 DietPi systemd[1]: proftpd.service: Failed with result 'exit-code'.
Apr 13 22:58:49 DietPi systemd[1]: Failed to start LSB: Starts ProFTPD daemon.

그래서 좀 파봤는데여기포트에서 실행 중이거나 바인딩된 다른 프로세스가 없는 것으로 나타났습니다 21. 그렇다면 여기서 서비스 실패의 문제점은 무엇일까요?

게다가 글을 올려도 sudo lsof -i tcp:21아무런 반응이 없었습니다.

또한 이를 통해 nmap다음을 얻습니다.

PORT   STATE SERVICE
22/tcp open  ssh
53/tcp open  domain
80/tcp open  http

21/tcp여기에는 항구가 없습니다.

`proftpd -nd10`cl을 통한 디버깅:

roftpd -nd10
2021-04-14 08:13:45,498 DietPi proftpd[951]: using PCRE 8.39 2016-06-14
2021-04-14 08:13:45,508 DietPi proftpd[951]: using TCP receive buffer size of 131072 bytes
2021-04-14 08:13:45,510 DietPi proftpd[951]: using TCP send buffer size of 16384 bytes
2021-04-14 08:13:45,513 DietPi proftpd[951]: testing Unix domain socket using S_ISFIFO
2021-04-14 08:13:45,517 DietPi proftpd[951]: testing Unix domain socket using S_ISSOCK
2021-04-14 08:13:45,519 DietPi proftpd[951]: using S_ISSOCK macro for Unix domain socket detection
2021-04-14 08:13:45,528 DietPi proftpd[951]: mod_ctrls/0.9.5: error: unable to bind to local socket: Address already in use
2021-04-14 08:13:45,532 DietPi proftpd[951]: using 'UTF-8' as local charset for UTF-8 conversion
2021-04-14 08:13:45,535 DietPi proftpd[951]: ROOT PRIVS at mod_core.c:376
2021-04-14 08:13:45,537 DietPi proftpd[951]: RELINQUISH PRIVS at mod_core.c:378
2021-04-14 08:13:45,541 DietPi proftpd[951]: ROOT PRIVS at mod_core.c:385
2021-04-14 08:13:45,544 DietPi proftpd[951]: ROOT PRIVS at parser.c:1187
2021-04-14 08:13:45,549 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_ctrls_admin.c'
2021-04-14 08:13:45,554 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_ctrls_admin' (from '/usr/lib/proftpd/mod_ctrls_admin.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,558 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_tls.c'
2021-04-14 08:13:45,562 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_tls' (from '/usr/lib/proftpd/mod_tls.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,565 DietPi proftpd[951]: mod_tls/2.7: using OpenSSL 1.1.1d  10 Sep 2019
2021-04-14 08:13:45,587 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_radius.c'
2021-04-14 08:13:45,591 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_radius' (from '/usr/lib/proftpd/mod_radius.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,594 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_quotatab.c'
2021-04-14 08:13:45,599 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_quotatab' (from '/usr/lib/proftpd/mod_quotatab.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,602 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_quotatab_file.c'
2021-04-14 08:13:45,607 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_quotatab_file' (from '/usr/lib/proftpd/mod_quotatab_file.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,609 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_quotatab_radius.c'
2021-04-14 08:13:45,612 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_quotatab_radius' (from '/usr/lib/proftpd/mod_quotatab_radius.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,617 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_wrap.c'
2021-04-14 08:13:45,625 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_wrap' (from '/usr/lib/proftpd/mod_wrap.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,628 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_rewrite.c'
2021-04-14 08:13:45,633 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_rewrite' (from '/usr/lib/proftpd/mod_rewrite.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,636 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_load.c'
2021-04-14 08:13:45,639 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_load' (from '/usr/lib/proftpd/mod_load.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,643 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_ban.c'
2021-04-14 08:13:45,648 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_ban' (from '/usr/lib/proftpd/mod_ban.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,651 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_wrap2.c'
2021-04-14 08:13:45,656 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_wrap2' (from '/usr/lib/proftpd/mod_wrap2.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,660 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_wrap2_file.c'
2021-04-14 08:13:45,664 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_wrap2_file' (from '/usr/lib/proftpd/mod_wrap2_file.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,668 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_dynmasq.c'
2021-04-14 08:13:45,673 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_dynmasq' (from '/usr/lib/proftpd/mod_dynmasq.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,675 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_exec.c'
2021-04-14 08:13:45,681 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_exec' (from '/usr/lib/proftpd/mod_exec.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,683 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_shaper.c'
2021-04-14 08:13:45,688 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_shaper' (from '/usr/lib/proftpd/mod_shaper.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,692 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_ratio.c'
2021-04-14 08:13:45,696 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_ratio' (from '/usr/lib/proftpd/mod_ratio.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,699 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_site_misc.c'
2021-04-14 08:13:45,704 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_site_misc' (from '/usr/lib/proftpd/mod_site_misc.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,706 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_sftp.c'
2021-04-14 08:13:45,722 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_sftp' (from '/usr/lib/proftpd/mod_sftp.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,725 DietPi proftpd[951]: mod_sftp/1.0.0: using OpenSSL 1.1.1d  10 Sep 2019
2021-04-14 08:13:45,737 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_sftp_pam.c'
2021-04-14 08:13:45,741 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_sftp_pam' (from '/usr/lib/proftpd/mod_sftp_pam.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,744 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_facl.c'
2021-04-14 08:13:45,749 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_facl' (from '/usr/lib/proftpd/mod_facl.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,752 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_unique_id.c'
2021-04-14 08:13:45,757 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_unique_id' (from '/usr/lib/proftpd/mod_unique_id.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,762 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_copy.c'
2021-04-14 08:13:45,768 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_copy' (from '/usr/lib/proftpd/mod_copy.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,773 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_deflate.c'
2021-04-14 08:13:45,787 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_deflate' (from '/usr/lib/proftpd/mod_deflate.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,789 DietPi proftpd[951]: mod_deflate/0.5.7: using zlib 1.2.11
2021-04-14 08:13:45,792 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_ifversion.c'
2021-04-14 08:13:45,798 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_ifversion' (from '/usr/lib/proftpd/mod_ifversion.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,800 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_memcache.c'
2021-04-14 08:13:45,805 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_memcache' (from '/usr/lib/proftpd/mod_memcache.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,809 DietPi proftpd[951]: mod_memcache/0.1: using libmemcached-1.0.18
2021-04-14 08:13:45,812 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_tls_memcache.c'
2021-04-14 08:13:45,815 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_tls_memcache' (from '/usr/lib/proftpd/mod_tls_memcache.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,815 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_readme.c'
2021-04-14 08:13:45,823 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_readme' (from '/usr/lib/proftpd/mod_readme.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,825 DietPi proftpd[951]: mod_dso/0.5: loading 'mod_ifsession.c'
2021-04-14 08:13:45,831 DietPi proftpd[951]: mod_dso/0.5: loaded module 'mod_ifsession' (from '/usr/lib/proftpd/mod_ifsession.so', last modified on Tue Mar 10 23:03:08 2020)
2021-04-14 08:13:45,835 DietPi proftpd[951]: RELINQUISH PRIVS at parser.c:1190
2021-04-14 08:13:45,838 DietPi proftpd[951]: RELINQUISH PRIVS at mod_core.c:388
2021-04-14 08:13:45,844 DietPi proftpd[951]: DenyFilter: compiling regex '\*.*/'
2021-04-14 08:13:45,857 DietPi proftpd[951]: retrieved UID 1000 for user 'dietpi'
2021-04-14 08:13:45,862 DietPi proftpd[951]: retrieved GID 1000 for group 'dietpi'
2021-04-14 08:13:45,866 DietPi proftpd[951]: <IfModule>: using 'mod_quotatab.c' section at line 53
2021-04-14 08:13:45,868 DietPi proftpd[951]: <IfModule>: using 'mod_ratio.c' section at line 57
2021-04-14 08:13:45,871 DietPi proftpd[951]: <IfModule>: using 'mod_delay.c' section at line 61
2021-04-14 08:13:45,873 DietPi proftpd[951]: <IfModule>: using 'mod_ctrls.c' section at line 65
2021-04-14 08:13:45,874 DietPi proftpd[951]: ROOT PRIVS at mod_ctrls.c:114
2021-04-14 08:13:45,877 DietPi proftpd[951]: RELINQUISH PRIVS at mod_ctrls.c:117
2021-04-14 08:13:45,878 DietPi proftpd[951]: <IfModule>: using 'mod_ctrls_admin.c' section at line 73
2021-04-14 08:13:45,879 DietPi proftpd[951]: ROOT PRIVS at mod_core.c:376
2021-04-14 08:13:45,879 DietPi proftpd[951]: RELINQUISH PRIVS at mod_core.c:378
2021-04-14 08:13:45,879 DietPi proftpd[951]: ROOT PRIVS at mod_core.c:385
2021-04-14 08:13:45,879 DietPi proftpd[951]: processing configuration directory '/etc/proftpd/conf.d/'
2021-04-14 08:13:45,880 DietPi proftpd[951]: RELINQUISH PRIVS at mod_core.c:388
2021-04-14 08:13:45,907 DietPi proftpd[951]: UseReverseDNS off, returning IP address instead of DNS name
2021-04-14 08:13:45,907 DietPi proftpd[951] 127.0.0.1: 
2021-04-14 08:13:45,907 DietPi proftpd[951] 127.0.0.1: Config for DietPi FTP:
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: IdentLookups
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: DeferWelcome
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: MultilineRFC2228
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: DefaultServer
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: ShowSymlinks
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: AllowRetrieveRestart
2021-04-14 08:13:45,908 DietPi proftpd[951] 127.0.0.1: AllowStoreRestart
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: TimeoutNoTransfer
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: TimeoutStalled
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: TimeoutIdle
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: DisplayLogin
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: DisplayChdir
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: ListOptions
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: DenyFilter
2021-04-14 08:13:45,909 DietPi proftpd[951] 127.0.0.1: DefaultRoot
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: RootLogin
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: UserID
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: UserName
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: GroupID
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: GroupName
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: Umask
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: DirUmask
2021-04-14 08:13:45,910 DietPi proftpd[951] 127.0.0.1: AllowOverwrite
2021-04-14 08:13:45,911 DietPi proftpd[951] 127.0.0.1: TransferLog
2021-04-14 08:13:45,911 DietPi proftpd[951] 127.0.0.1: SystemLog
2021-04-14 08:13:45,911 DietPi proftpd[951] 127.0.0.1: WtmpLog
2021-04-14 08:13:45,911 DietPi proftpd[951] 127.0.0.1: QuotaEngine
2021-04-14 08:13:45,911 DietPi proftpd[951] 127.0.0.1: Ratios
2021-04-14 08:13:45,911 DietPi proftpd[951] 127.0.0.1: DelayEngine
2021-04-14 08:13:45,912 DietPi proftpd[951] 127.0.0.1: mod_facl/0.6: registered 'facl' FS
2021-04-14 08:13:45,921 DietPi proftpd[951] 127.0.0.1: mod_tls/2.7: generating initial TLS session ticket key
2021-04-14 08:13:45,924 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at mod_tls.c:4815
2021-04-14 08:13:45,927 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at mod_tls.c:4818
2021-04-14 08:13:45,930 DietPi proftpd[951] 127.0.0.1: mod_tls/2.7: scheduling new TLS session ticket key every 3600 secs
2021-04-14 08:13:45,935 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: binding to text domain 'proftpd' using locale path '/usr/share/locale'
2021-04-14 08:13:45,936 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: using locale files in '/usr/share/locale'
2021-04-14 08:13:45,939 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'ko_KR': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,943 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'bg_BG': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,945 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'ja_JP': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,948 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'en_US': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,951 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'fr_FR': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,954 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'es_ES': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,958 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'zh_TW': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,960 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'zh_CN': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,964 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'it_IT': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,968 DietPi proftpd[951] 127.0.0.1: mod_lang/1.1: skipping possible language 'ru_RU': not supported by setlocale(3); see `locale -a'
2021-04-14 08:13:45,971 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at mod_log.c:2151
2021-04-14 08:13:45,974 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at mod_log.c:2154
2021-04-14 08:13:45,976 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at mod_rlimit.c:555
2021-04-14 08:13:45,978 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at mod_rlimit.c:558
2021-04-14 08:13:45,980 DietPi proftpd[951] 127.0.0.1: set core resource limits for daemon
2021-04-14 08:13:45,981 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at mod_auth_unix.c:1338
2021-04-14 08:13:45,986 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at mod_auth_unix.c:1341
2021-04-14 08:13:45,989 DietPi proftpd[951] 127.0.0.1: retrieved group ID: 1000
2021-04-14 08:13:45,991 DietPi proftpd[951] 127.0.0.1: setting group ID: 1000
2021-04-14 08:13:45,993 DietPi proftpd[951] 127.0.0.1: SETUP PRIVS at main.c:2594
2021-04-14 08:13:45,994 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at main.c:1862
2021-04-14 08:13:45,995 DietPi proftpd[951] 127.0.0.1: deleting existing scoreboard '/run/proftpd.scoreboard'
2021-04-14 08:13:45,996 DietPi proftpd[951] 127.0.0.1: opening scoreboard '/run/proftpd.scoreboard'
2021-04-14 08:13:45,998 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at main.c:1889
2021-04-14 08:13:46,002 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at mod_ctrls_admin.c:1632
2021-04-14 08:13:46,002 DietPi proftpd[951] 127.0.0.1: opening scoreboard '/run/proftpd.scoreboard'
2021-04-14 08:13:46,005 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at mod_ctrls_admin.c:1634
2021-04-14 08:13:46,007 DietPi proftpd[951] 127.0.0.1: ROOT PRIVS at inet.c:409
2021-04-14 08:13:46,008 DietPi proftpd[951] 127.0.0.1: RELINQUISH PRIVS at inet.c:459
2021-04-14 08:13:46,009 DietPi proftpd[951] 127.0.0.1: Failed binding to ::, port 21: Address already in use
2021-04-14 08:13:46,011 DietPi proftpd[951] 127.0.0.1: Check the ServerType directive to ensure you are configured correctly
2021-04-14 08:13:46,011 DietPi proftpd[951] 127.0.0.1: Check to see if inetd/xinetd, or another proftpd instance, is already using ::, port 21
2021-04-14 08:13:46,011 DietPi proftpd[951] 127.0.0.1: Unable to start proftpd; check logs for more details

디버깅이 통과되었습니다.`strace proftpd | grep -E "SOCKET|sock"`

getpeername(0, 0xbe8a6c1c, [16])        = -1 ENOTSOCK (Socket operation on non-socket)
socket(AF_UNIX, SOCK_DGRAM, 0)          = 3
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 3
connect(3, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_INET, SOCK_STREAM, IPPROTO_TCP) = 4
getsockopt(4, SOL_SOCKET, SO_RCVBUF, [131072], [4]) = 0
getsockopt(4, SOL_SOCKET, SO_SNDBUF, [16384], [4]) = 0
socket(AF_UNIX, SOCK_STREAM, 0)         = 4
bind(4, {sa_family=AF_UNIX, sun_path="/run/test.sock"}, 110) = 0
unlink("/run/test.sock")                = 0
socket(AF_UNIX, SOCK_STREAM, 0)         = 4
bind(4, {sa_family=AF_UNIX, sun_path="/run/proftpd.sock"}, 110) = -1 EADDRINUSE (Address already in use)
write(2, "2021-04-14 11:08:40,739 DietPiHo"..., 1292021-04-14 11:08:40,739 DietPi proftpd[2682]: mod_ctrls/0.9.5: error: unable to bind to local socket: Address already in use
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 6
connect(6, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 6
connect(6, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 5
connect(5, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 5
connect(5, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0) = 4
connect(4, {sa_family=AF_UNIX, sun_path="/var/run/nscd/socket"}, 110) = -1 ENOENT (No such file or directory)
socket(AF_NETLINK, SOCK_RAW|SOCK_CLOEXEC, NETLINK_ROUTE) = 4
getsockname(4, {sa_family=AF_NETLINK, nl_pid=2682, nl_groups=00000000}, [12]) = 0
socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC, IPPROTO_IP) = 4
getsockname(4, {sa_family=AF_INET, sin_port=htons(44402), sin_addr=inet_addr("127.0.0.1")}, [28->16]) = 0
getsockname(4, {sa_family=AF_INET, sin_port=htons(40796), sin_addr=inet_addr("127.0.0.1")}, [28->16]) = 0
socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_IP) = 4

답변1

출력은 이미 존재하는 것으로 보이는 strace생성을 시도하여 오류가 발생했음을 나타냅니다 /run/proftpd.sock.

프로세스가 점유하고 있는지 확인 하십시오 fuser /run/proftpd.sock. 해당 프로세스의 PID 번호가 보고됩니다. 그런 다음 ps -fp <PID number here>관련 프로세스에 대한 추가 정보를 얻는 데 사용됩니다.

그렇다면 이를 제거하기 위해 systemd몇 가지 조치를 취해야 할 수도 있습니다 . systemctl stop proftpd.socket; systemctl disable proftpd.socket(이 경우 DietPi의 기본 ProFTPD 구성은 다음을 systemd사용 하도록 사용자 정의되었을 수 있습니다.소켓 활성화inetd메커니즘 - 본질적으로 클래식 / xinetd주문형 전용 FTP 데몬 에 대한 대안입니다 . ProFTPD를 전통적인 독립형 서비스로 실행하려는 것 같으므로 systemd해당 소켓을 비활성화해야 합니다 . )

다른 프로세스인 경우 해당 프로세스를 종료하고 다시 시작되지 않도록 방지하는 방법을 알아낼 수 있습니다.

그러나 fuser프로세스가 전혀 나열되지 않으면 /run/proftpd.sock올바르게 시작되지 않은 이전 테스트 실행의 남은 것일 수 있습니다. 이 경우 실행 rm /run/proftpd.sock하고 다시 시도하십시오 systemctl start proftpd.service.

proftpd -nd10cl을 통한 디버깅:

디버깅이 통과되었습니다.strace proftpd | grep -E "SOCKET|sock"

답변1

관련 정보

`proftpd -nd10`cl을 통한 디버깅:

디버깅이 통과되었습니다.`strace proftpd | grep -E "SOCKET|sock"`