Hi there I set up my server a couple of months ago and used the pure-ftp with mysql how to on the site and my server has been a happy camper until about 2 weeks ago, 2 events occurred not sure which one borked the server though. The first was an update via apt-get upgrade, the second was someone trying to brute force the server, looked like a zombie script. So I turned off the server as it was not needed for a day or so then fired it up again Once it was up I noticed the following. When I try and connect (I use filezilla as a client) i get the following Code: Status: Connecting to <server> ... Status: Connected with <server>. Waiting for welcome message... Response: 220---------- Welcome to Pure-FTPd ---------- Response: 220-You are user number 1 of 50 allowed. Response: 220-Local time is now 17:16. Server port: 21. Response: 220-IPv6 connections are also welcome on this server. Response: 220 You will be disconnected after 15 minutes of inactivity. Command: USER <user> Response: 331 User <user> OK. Password required Command: PASS ******** Response: 230-User <user>has group access to: ftpgroup Response: 230 OK. Current restricted directory is / Command: FEAT Response: 211-Extensions supported: Response: EPRT Response: IDLE Response: MDTM Response: SIZE Response: REST STREAM Response: MLST type*;size*;sizd*;modify*;UNIX.mode*;UNIX.uid*;UNIX.gid*;unique*; Response: MLSD Response: ESTP Response: PASV Response: EPSV Response: SPSV Response: ESTA Response: 211 End. Command: SYST Response: 215 UNIX Type: L8 Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is your current location Command: TYPE A Response: 200 TYPE is now ASCII Command: PASV Response: 227 Entering Passive Mode (88,198,5,149,192,40) Command: LIST Error: Transfer channel can't be opened. Reason: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. Error: Could not retrieve directory listing Command: REST 0 Error: Timeout detected! Status: Waiting to retry... (5 retries left) I thought it may initially be an issue with my user but it seems to affect all users, the other thing I did notice is that the virtual ftp user has no write access on their directory, and I have to manually chmod/chown the directory this however has been around since day 1 of my install. The actual ftp user is set to "No login allowed" in webmin and their home directory is set to /bin/null, and the virtual ftp users UID & GID are correct, I am at a bit of a loss here, any tips?
I think it's caused by the Code: apt-get upgrade , but anyway you should check your system for rootkits: http://www.howtoforge.com/faq/1_38_en.html
I do every 4 hours this is my output Code: ROOTDIR is `/' Checking `amd'... not found Checking `basename'... not infected Checking `biff'... not found Checking `chfn'... not infected Checking `chsh'... not infected Checking `cron'... not infected Checking `crontab'... not infected Checking `date'... not infected Checking `du'... not infected Checking `dirname'... not infected Checking `echo'... not infected Checking `egrep'... not infected Checking `env'... not infected Checking `find'... not infected Checking `fingerd'... not found Checking `gpm'... not found Checking `grep'... not infected Checking `hdparm'... not found Checking `su'... not infected Checking `ifconfig'... not infected Checking `inetd'... not infected Checking `inetdconf'... not infected Checking `identd'... not found Checking `init'... not infected Checking `killall'... not infected Checking `ldsopreload'... not infected Checking `login'... not infected Checking `ls'... not infected Checking `lsof'... not found Checking `mail'... not infected Checking `mingetty'... not found Checking `netstat'... not infected Checking `named'... not infected Checking `passwd'... not infected Checking `pidof'... not infected Checking `pop2'... not found Checking `pop3'... not found Checking `ps'... not infected Checking `pstree'... not infected Checking `rpcinfo'... not infected Checking `rlogind'... not found Checking `rshd'... not found Checking `slogin'... not infected Checking `sendmail'... not infected Checking `sshd'... not infected Checking `syslogd'... not infected Checking `tar'... not infected Checking `tcpd'... not infected Checking `tcpdump'... not infected Checking `top'... not infected Checking `telnetd'... not found Checking `timed'... not found Checking `traceroute'... not found Checking `vdir'... not infected Checking `w'... not infected Checking `write'... not infected Checking `aliens'... no suspect files Searching for sniffer's logs, it may take a while... nothing found Searching for HiDrootkit's default dir... nothing found Searching for t0rn's default files and dirs... nothing found Searching for t0rn's v8 defaults... nothing found Searching for Lion Worm default files and dirs... nothing found Searching for RSHA's default files and dir... nothing found Searching for RH-Sharpe's default files... nothing found Searching for Ambient's rootkit (ark) default files and dirs... nothing found Searching for suspicious files and dirs, it may take a while... nothing found Searching for LPD Worm files and dirs... nothing found Searching for Ramen Worm files and dirs... nothing found Searching for Maniac files and dirs... nothing found Searching for RK17 files and dirs... nothing found Searching for Ducoci rootkit... nothing found Searching for Adore Worm... nothing found Searching for ShitC Worm... nothing found Searching for Omega Worm... nothing found Searching for Sadmind/IIS Worm... nothing found Searching for MonKit... nothing found Searching for Showtee... nothing found Searching for OpticKit... nothing found Searching for T.R.K... nothing found Searching for Mithra... nothing found Searching for OBSD rk v1... nothing found Searching for LOC rootkit... nothing found Searching for Romanian rootkit... nothing found Searching for Suckit rootkit... nothing found Searching for Volc rootkit... nothing found Searching for Gold2 rootkit... nothing found Searching for TC2 Worm default files and dirs... nothing found Searching for Anonoying rootkit default files and dirs... nothing found Searching for ZK rootkit default files and dirs... nothing found Searching for ShKit rootkit default files and dirs... nothing found Searching for AjaKit rootkit default files and dirs... nothing found Searching for zaRwT rootkit default files and dirs... nothing found Searching for Madalin rootkit default files... nothing found Searching for Fu rootkit default files... nothing found Searching for ESRK rootkit default files... nothing found Searching for rootedoor... nothing found Searching for ENYELKM rootkit default files... nothing found Searching for anomalies in shell history files... nothing found Checking `asp'... not infected Checking `bindshell'... INFECTED (PORTS: 1524 6667 31337) Checking `lkm'... chkproc: nothing detected Checking `rexedcs'... not found Checking `sniffer'... eth0: not promisc and no PF_PACKET sockets Checking `w55808'... not infected Checking `wted'... chkwtmp: nothing deleted Checking `scalper'... not infected Checking `slapper'... not infected Checking `z2'... chklastlog: nothing deleted Checking `chkutmp'... chkutmp: nothing deleted Not sure what port 1524 is but the machine is behaving. So what suggestions then a fresh install or move to something like vsftp? Multiple accounts are not mission critical on my server
Do you use Portsentry? If so, I'm sure the message is caused by Portsentry. If it isn't too much hassle, I'd reinstall the system. And remember: never touch a running system. (Or at least have a backup before you do.)
yes I do use portsentry As tempting as a reinstall is its a bit of a bugger to do considering I have no failover system. Thanks for the advice anyways
