Tags:,, As a means of distributing large collections of files FTP is still a popular choice, despite the rise of bittorrent, and the growing number of HTTP servers. FTP is an often overlooked method of storing and giving access to files, in many cases FTP servers have been retired in place of webservers such as Apache. But there are a lot of cases where offering access via FTP makes sense, even with the limitations of FTP - most notably the difficulty of firewalling and the security risk involved in using plaintext passwords.
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Jun 27, 2013 - Hi, I've been trying to get a tftp server up and running on lubuntu but. Join Date: Feb 2013; Beans: 6. Sudo apt-get update sudo apt-get install tftpd-hpa. Slackware and derivatives openSUSE and SUSE Linux Enterprise Mac OSX PCLinuxOS Gentoo and derivatives Windows BSD Any Other OS. Debian uses codenames for releases (buster, stretch, jessie, wheezy, squeeze) and names for suites (unstable, testing, stable & oldstable). When a new Debian major release is made, the packages in “testing” are frozen and become the new “stable”. A TFTP server is mainly required for booting operating systems. The line starting with tftp in /etc/inetd.conf has to be uncommented (for Debian's.
There are several different FTP servers packaged within Debian, which you can see via: apt-cache search ftp-server One of the most popular servers around is, and that can be installed upon Debian systems with: apt-get install proftpd Once downloaded debconf will ask if you wish to run the server via inetd, or in a standalone fashion. In general you want the latter option. After the installation the server will be running, and will grant access to all user accounts upon the host. If you wish to stop the server prior to more configuration you can do so with: /etc/init.d/proftpd stop The configuration of proftpd is conducted via the configuration file of /etc/proftpd.conf.
Security Options There are several security options you can enable in proftpd, the most notable is the use of TLS security. To use TLS you will need to generate a key, and update your server's configuration file to use it. Generating a key is simple enough with the openssl command, which is contained in the: mkdir /etc/proftpd cd /etc/proftpd openssl req -new -x509 -days 365 -nodes -out ftpd-rsa.pem -keyout ftpd-rsa-key.pem With the files generated you can add the following to your proftpd.conf file: TLSEngine on TLSLog /var/log/proftpd-tls.log TLSProtocol TLSv1 # Are clients required to use FTP over TLS when talking to this server? TLSRequired off TLSRSACertificateFile /etc/proftpd/ftpd-rsa.pem TLSRSACertificateKeyFile /etc/proftpd/ftpd-rsa-key.pem # Authenticate clients that want to use FTP over TLS? TLSVerifyClient off Other security options include limiting users to particular directories. To limit the user 'bob' to the starting directory '/tmp' you can use: DefaultRoot /tmp bob The more general approach is to restrict users to their own home directory, which you can accomplish via: DefaultRoot ~ This causes all users to be presented with the contents of their home directory (as specified by /etc/passwd) when they login. Permitting Anonymous Access To permit anonymous access to your server you will need to uncomment the configuration options which are already present in the standard /etc/proftpd.conf file.
This is a good starting point: User ftp Group nogroup # We want clients to be able to login with 'anonymous' as well as 'ftp' UserAlias anonymous ftp # Cosmetic changes, all files belongs to ftp user DirFakeUser on ftp DirFakeGroup on ftp RequireValidShell off # Limit the maximum number of anonymous logins MaxClients 10 # We want 'welcome.msg' displayed at login, and '.message' displayed # in each newly chdired directory. DisplayLogin welcome.msg DisplayFirstChdir.message # Limit WRITE everywhere in the anonymous chroot DenyAll This configuration setting allows users to login with either anonymous, or ftp, as username and they will be able to read from /home/ftp. Thankfully they will be unable to upload new content, or delete existing files. They will be given only read-only access to the server.
Miscallaneous Options There are some other options which you might wish to change, for example the welcome message presented to clients. The welcome message presented is read from /home/ftp/welcome.msg, editing that file will immediately change the text sent to users. The hostname of your server is typically displayed to clients when they connect - in the Debian package the greeting only includes the string 'Debian' - as you can see from the following session: user@host:~ ftp localhost Connected to localhost.localdomain. 220 ProFTPD 1.2.10 Server (Debian) [127.0.0.1] To change this update the proftpd.conf file to include: ServerName 'My.host.name'. I too switched from proftpd to pure-ftpd, mainly because I could not get proftpd to work nicely with my particular PAM setup. Pure-ftpd's configuration is a bit strange at first.
Basically, you just add files that represent commandline options to a directory /etc/pureftpd/conf/. For instance, to configure a trusted GID for which no chrooting takes place, pure-ftpd provides the --trustedgid option. To enable this as a configuration option, you create a file named TrustedGID and put the GID in that file. Even though Pure-ftpd's configuration is unorthodox to say the least, I like it better than proftpd's. For some reason I also had a lot less problems setting up rate-limiting and chrooting (for all users except a few) with pure-ftpd than I did for proftpd. It seems to me proftpd is a little more advanced and offers more options than proftpd, but so far I haven't found anything I personally use that pure-ftpd doesn't offer and proftpd does. It's worth checking out.
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I always recommend sftp (ssh subsystem) for all NON-anonymous ftp access because SSH has far fewer security issues than the average ftp server, and its simple configuration. If you have OpenSSH server installed then just add the following line to /etc/ssh/sshd_config and restart the daemon (/etc/init.d/ssh restart): Subsystem sftp /usr/lib/openssh/sftp-server And for the linux users, install the OpenSSH client and have them use sftp to connect instead of ftp. For windows users, install one of the following: • • [ Parent ]. I run both vsftpd and proftpd at work.
Install Tftp Server
We use proftpd to support virtual users, although I dare say this could be done through PAM, there are other aspects to having a lot of virtual users, like quota management that proftpd does well. Where we just need vanilla system users to be able to ftp, we use vsftpd. Never had a problem with either, yes proftpd has a bit of a security history but it provides a lot of features not found elsewhere, and as far as I have ascertained none of the security issues have so far affected a configuration that is 2 years old.