I have a problem with proftpd and I have this message : Do you have an idea to resolve this problem. The problem start after an update of ubuntu
2016-04-05 14:26:40,722 mydomain_mydomain.no-ip.biz proftpd[5376]: warning: unable to determine IP address of 'mydomain_mydomain.no-ip.biz'
2016-04-05 14:26:40,722 mydomain_mydomain.no-ip.biz proftpd[5376]: error: no valid servers configured
2016-04-05 14:26:40,722 mydomain_mydomain.no-ip.biz proftpd[5376]: fatal: error processing configuration file '/etc/proftpd/proftpd.conf'
this synthaxe is weerd : mydomain_mydomain.no-ip.biz
ifconfig
enp2s0 Link encap:Ethernet HWaddr 00:e0:4c:68:31:b2
UP BROADCAST MULTICAST MTU:1500 Metric:1
Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)
enp3s0 Link encap:Ethernet HWaddr 00:e0:4c:68:31:b3
inet adr:192.168.0.101 Bcast:192.168.0.255 Masque:255.255.255.0
adr inet6: fe80::2e0:4cff:fe68:31b3/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:65868 erreurs:0 :0 overruns:0 frame:0
TX packets:51527 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:46464848 (46.4 MB) Octets transmis:6390833 (6.3 MB)
lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:65536 Metric:1
Packets reçus:5307 erreurs:0 :0 overruns:0 frame:0
TX packets:5307 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1
Octets reçus:557770 (557.7 KB) Octets transmis:557770 (557.7 KB)
vi /etc/hostname
computername
mydomain.no-ip.biz
vi /etc/hosts
127.0.0.1 localhost
127.0.1.1 computername
127.0.0.1 mydomain.no-ip.biz
192.168.0.137 mydomain.no-ip.biz
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
#fe80::2e0:4cff:fe68:31b3 mydomain.no-ip.biz
my proftpd config
ServerType standalone
DefaultServer on
Umask 022
ServerName "0.0.0.0"
ServerIdent on "My FTP Server"
ServerAdmin email@example.org
IdentLookups off
UseReverseDNS off
Port 21
PassivePorts 49152 65534
#MasqueradeAddress None
TimesGMT off
MaxInstances 30
MaxLoginAttempts 3
TimeoutLogin 300
TimeoutNoTransfer 120
TimeoutIdle 120
DisplayLogin welcome.msg
DisplayChdir .message
User nobody
Group nobody
DirFakeUser off nobody
DirFakeGroup off nobody
DefaultTransferMode binary
AllowForeignAddress off
AllowRetrieveRestart on
AllowStoreRestart on
DeleteAbortedStores off
TransferRate RETR 220
TransferRate STOR 250
TransferRate STOU 250
TransferRate APPE 250
SystemLog /var/log/secure
RequireValidShell off
<IfModule mod_tls.c>
TLSEngine off
TLSRequired off
TLSVerifyClient off
TLSProtocol SSLv23
TLSLog /var/log/proftpd_tls.log
TLSRSACertificateFile /etc/gadmin-proftpd/certs/cert.pem
TLSRSACertificateKeyFile /etc/gadmin-proftpd/certs/key.pem
TLSCACertificateFile /etc/gadmin-proftpd/certs/cacert.pem
TLSRenegotiate required off
TLSOptions AllowClientRenegotiation
</IfModule>
<IfModule mod_ratio.c>
Ratios off
SaveRatios off
RatioFile "/restricted/proftpd_ratios"
RatioTempFile "/restricted/proftpd_ratios_temp"
CwdRatioMsg "Please upload first!"
FileRatioErrMsg "FileRatio limit exceeded, upload something first..."
ByteRatioErrMsg "ByteRatio limit exceeded, upload something first..."
LeechRatioMsg "Your ratio is unlimited."
</IfModule>
<Limit LOGIN>
AllowUser local_test
DenyALL
</Limit>
<Anonymous /var/www>
User local_test
Group www-data
AnonRequirePassword on
MaxClients 10 "The server is full, hosting %m users"
DisplayLogin welcome.msg
DisplayChdir .msg
<Limit LOGIN>
Allow from All
Deny from all
</Limit>
AllowOverwrite on
<Limit LIST NLST STOR STOU APPE RETR RNFR RNTO DELE MKD XMKD SITE_MKDIR RMD XRMD SITE_RMDIR SITE_CHMOD MTDM PWD XPWD SIZE STAT CWD XCWD CDUP XCUP >
AllowAll
</Limit>
<Limit SITE SITE_CHGRP >
DenyAll
</Limit>
</Anonymous>
By default, ProFTPD assumes that the DNS name of your server is that returned by:
$ hostname
and so it tries to resolve that name via DNS to an IP address. (Technically, ProFTPD internally uses gethostname(2) system call, which usually uses /etc/hostname.) If that DNS resolution fails, ProFTPD fails to start up, because it thinks that your server will be unreachable by any other FTP client.
You might be able to work around this issue by using the DefaultAddress directive in your proftpd.conf:
DefaultAddress mydomain.no-ip.biz
Hope this helps!