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• disbale ssh for bnroot as root account

  - by user2916639

  i am beginner with centos - Linux i have dedicated server . my root username is bnroot . now i am taking ssh using this user. i want to disable ssh for bnroot. i have created user user name welcome i want take ssh login by welcome user then i ll use su - bnroot to get root privileges. i have set PermitRootLogin no , AllowUsers welcome IN /etc/sshd_config and after restarting sshd service . i take ssh login by welcome use then it is ok. but when i use su bnroot its prompt to password and i enter right passowrd it show su: incorrect password , i dont know where i am wrong . please help me here. changes i done - /etc/ssh/sshd_confid PermitRootLogin no AllowUsers welcome /etc/sudoers welcome ALL=(ALL) ALL getting error in /var/log/secure unix_chkpwd[666]: password check failed for user (bnroot) su: pam_unix(su:auth): authentication failure; logname=ewalletssh uid=503 euid=500 tty=pts/1 ruser=ewalletssh rhost= user=bnroot please let me know where i am wrong

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• Is it possible to power off a PCIe video card/slot? (eg. hot-plug)

  - by CR.

  I'm looking at building a system that supports VT-d so I can pass through a high powered loud video card to a Xen/KVM/whatever VM (host will be Linux based). However, when I'm not using the VM I want to turn the video card off so its fan does not run. The card will not be used when the VM isn't running. Anyone know if this is possible? The PCI-Express hot-plug specification allows cutting power to specific slots but I have never heard of anyone doing it with a video card and my searches for information have turned up nothing.

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• How to remove file permissions from an external hard drive?

  - by user2540416

  My macbook recently died and I am currently trying to figure out how to copy my data. What I did was, I took out the hard drive, put it in an enclosure and plugged it in to my other laptop that runs linux. The problem is, I cannot copy files from the hard drive due to file permissions. I tried to access the hard drive as root. But I still cannot copy files. How do I remove file permissions from the harddrive?

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• Is there a way to edit an existing nautilus (file manager) bookmark?

  - by C.W.Holeman II

  Is there a way to edit an existing nautilus (fie manager) bookmark? Invoke from Linux command line: $ nautilus Activate connection editor: File>Connect To Server...> Complete entries in the pop up: Service Type: [WebDAV (HTTP)] Server: [localhost] Port: [8001] Folder [webdav] Username: [test] [x] Add bookmark Bookmark name: [/dav] <Connect> Then in the left column of the main window the new connection and bookmark exist: Places ------------------- ausername Desktop File System Network WebDAV on localhost Trash -------------------- /dav Right click on "/dav" pop up menu: Open Open in New Tab Open in New Window ------------------ Remove Rename... There is no option for editing.

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• Is there a keyboard shortcut in Firefox to paste the Unix "primary selection" clipboard, not the Fir

  - by mike

  I run Linux, and am used to selecting text with the mouse to copy and pressing shift-Ins to paste. (This uses an alternate clipboard known as the "Primary Selection".) This seems to work in every app besides Firefox. Firefox uses a different clipboard, where Ctrl-C copies and Ctrl-V pastes. Is there a keystroke or configuration change I can do to make Firefox paste from the Unix "primary selection" clipboard -- the one it pastes from when I click the middle mouse button? Edit: I'm looking for a keyboard shortcut. Not mouse.

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• Good free way to clone a hard drive or a partition and send the image over the network (through FTP, Windows file sharing, "anything")?

  - by Deleted

  What I ideally would like is a free software solution which can: Boot from a CD/DVD/USB-stick and Clone a complete hard drive or a partition and Send the resulting image file over the network through Windows file sharing (SMB, I could use SAMBA on my server to receive the image) or through FTP or through SFTP or through SCP It should work with Linux and Windows file-systems (where specific file system support is necessary) Is there anything good out there like this? I know Wikipedia lists a lot of cloning software. But I'm looking for a personal recommendation which you have used yourself, as I find it more credible (I'll see from the upvotes if the answer is liked by a lot of visitors).

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• ubuntu 10.04 span window across workspaces

  - by jakerman999

  I'm using an old server machine as a linux box desktop, and as such I have a lot of power but not a lot of display options. I cannot increase my resolution past 800x600 and recently this has become just to small. I have mostly been able to workaround windows being to large for a workspace by moving them with the alt key, but I would like to use something a little more versatile. My plan is to have a setup where I can open a windows (say firefox) on the top-left workspace and then resize it so that it fills four workspaces in an emulated "wall of monitors" fashion. I already have my workspaces arranged like this, but I am not seeing any options for allowing programs/windows to exist on more than one workspace at a time, I know that what I am trying to accomplish is possible (or was at some point in time) because when I google my solution pages appear with people trying to do the opposite (windows already appear on more than one workspace and they dislike it). Any help is much appreciated.

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• (core dumped) ${TOMCAT_START}?

  - by Farticle Pilter

  I am running COMSOL (a scientific software) as a server, to which MATLAB is connected to. After a while, COMSOL aborted with the following error message. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolbatch.ini Error occurred during initialization of VM Could not reserve enough space for object heap Could not create the Java virtual machine. [s@beads ~]$ comsol server -comsolinifile $HOME/comsolini/comsolserver.ini COMSOL 4.4 (Build: 150) started listening on port 2036 Use the console command 'close' to exit the program A client with username 's' has logged on to the server from 'beads.myuniversity.edu' using port 2036. /software/linux/x86_64/comsol-4.4/bin/comsol: line 1436: 32757 Aborted (core dumped) ${TOMCAT_START} What might be the cause of this (core dumped) ${TOMCAT_START}? How may I fix it?

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• Ubuntu server security; Is this enough?

  - by Camran

  I have a classifieds website, which uses php5 and mysql, and also java (solr). I am new to linux and VPS... I have installed SSH, and I have installed IPtables, and also I have PuTTY which I use as a terminal. Also, Filezilla is installed on my computer, and whenever I connect to my VPS, the "host" field in Filezilla says "Sftp://ip-adress" so I am guessing it is a safe connection. I used this command to find out if I had SSHD installed: whereis sshd and it returned some places where it actually was installed. So I havent actually installed it. Now, my Q is, is this enough? What other security measures should I take? Any good articles about security and how to set it up on a VPS? Remember, I have a windows xp OS on my laptop, but the OS for my VPS is Ubuntu 9.10. Also, I have apache2 installed... Thanks

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• FTP client hangs after a while

  - by lfbn

  I'm using Linux Ubuntu 12.04 with curlftpfs to connect to a remote server. After mounting a remote ftp, opening and saving files with vim, list directories and files, for some time, after a while (no more of 30 minutes), with no reason it hangs. After opening other terminal tabs, all tabs remain iddle...but when using filezilla without restart the computer I still can get to the server and working with no problem. When using Nautilus, instead of curlftpfs, I'm having the same problem. After a while it hangs. Can anyone help me please?

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• radvd won't accept non-/64 subnets

  - by Dolda2000

  I'm trying to set up radvd on a 6RD configuration (on Linux), where I have a /64 subnet, and I'm trying to use it on two distinct physical networks, so I'm trying to give each of them a /80 subnet. However, when I start radvd on these interfaces, it says this: radvd[3987]: prefix length should be 64 for int (int being the name of one of the interfaces.) I know that stateless autoconfiguration doesn't work on subnets that are larger than /64, like a /48 subnet, but AFAIK it's supposed to work on anything that is smaller than /64, so /80 shouldn't be a problem. The final effect, now, is that radvd simply advertises the wrong subnet prefix, effectively "removing" the first 16 bits of it. What is this? Am I all wrong on that, is radvd buggy, or is there some configuration option that I'm missing?

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• My raspberry pi server hostname doesn't work?

  - by xSpartanCx

  The people over on the rPi forums don't have any answers for me... I've got a raspberry pi running raspbian server edition. My problem is that the only way I can ssh into it with putty is through the static ip. My router doesn't recognize the hostname; it shows the mac address as the name. This causes the pi not to show my apache2 website online (I think). The only way I've gotten it to work is using my other linux server to forward using virtual hosts, and that has to use the ip address, too. However, now that I have my other server off, the website doesn't work.

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• Trouble getting OS fingerprinting to work in iptables

  - by user1197457

  Everyone, As I understand it, OSF has been merged with the Kernel since 2.6.before-my-kernel-version. Yet when I do something like this: iptables -I INPUT -j ACCEPT -p tcp -m osf --genre Linux --log 0 --ttl 2 and I get an error like: iptables: No chain/target/match by that name iptables -L Shows no rules because I did an iptables -F at one point. ALSO, the following command: cat /proc/net/ip_tables_matches Does not show "osf" on the list. A google doesn't seem to help. I've also installed iptables-devel in hopes I'd be able to load the osf module. Sadly I haven't been able to get that to work. Centos 6.4 minimal Any guidance?

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• sync two huge filesystems

  - by guettli

  I need to sync two huge file systems. Both sides run linux with full root access. My preferred solution: I can read the list of changed files and directories and sync only the changed files. Here are some solutions and why they don't fit: rsync: Needs to check recursively all files. There are some million files and only little changes. The check takes too long. unison: the same: needs to check all files. inotify: I need a handler for every directory and there too many. Inotify was not build for "watch all files" scenarios. DRDB: Both sides should run independent.

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• Restrict whole system on certain cores except a few process?

  - by icando

  Hi I am running some latency sensitive program on a Linux machine (more specifically, CentOS 6), and I don't want the threads of the process being preempted. So in my plan, the first step is to set cpu affinity of the threads so that threads are running on separate cores, so they don't preempt each other. Then the second step is to make sure other processes in the system not running on these cores. So my question is: is it possible to restrict the whole system running on certain cores, except this process? This should apply to any newly created processes in the future.

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• Spring security and MySQL under CentOS

  - by user223268

  i'm trying to connect to MySQL using spring security, spring should access the database and check the user and pass using direct sql. the problem is when i use localhost to access my local database nothing happen no exceptions no any thing but login fails. if i changed the host of the server to one of my team machine IP address the program login successfully. the only deference is that i'm using CentOS 6.5 and my team is using Windows. how can i make sure i'm configuring MySQL correctly and what privileges should i grand to my users to be able to finish this. note: i'm a newcomer to linux and MySQL server administration.

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• most simple way to get files on a server

  - by acidzombie24

  I am on windows and my server is linux. I would like to grab files from the server automatically with a script. Maybe execute a bash script remotely as well but maybe i dont need that. I need to connect securely and i would like some kind of password so not anyone can connect. I need to download files and i'd like to get every file in a set of folders. I do not want to download them again if they exist. What is the easiest way to do this? i thought of creating a simple .NET site with data in App_Data (so it cant be reached from the outside) however i have a feeling an easier way exist. I'd like to do scp with a shell but i am on windows and also i am unsure how to iterate through folders and only get files that dont exist.

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• Debian - no sound output

  - by Gogeta70

  So I've been trying for the last few days to get sound output on my Linux desktop. The onboard audio is Intel HD Audio ICH9, but I couldn't get Alsa to even detect it, so I disabled it in BIOS and installed a PCI card - a Dynex DX-SC51. Searching around, I found that it needed the Alsa driver for ice1724, so I installed all the stuff for that. Now, the system detects my sound card, but I can't get any audio to play out of it. Here's some information: root@debian:~# lspci | grep audio 02:01.0 Multimedia audio controller: VIA Technologies Inc. VT1720/24 [Envy24PT/HT] PCI Multi-Channel Audio Controller (rev 01) root@debian:~# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: ICE1724 [ICEnsemble ICE1724], device 0: ICE1724 [ICE1724] Subdevices: 0/1 Subdevice #0: subdevice #0 card 0: ICE1724 [ICEnsemble ICE1724], device 1: ICE1724 IEC958 [ICE1724 IEC958] Subdevices: 1/1 Subdevice #0: subdevice #0 I've been trying various solutions found on Google for a few days now and I'm getting nowhere. Hopefully someone here can point me in the right direction. Thanks.

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• What are the minimal iptables rules to surf the internet?

  - by alexx0186

  I am trying to set minimal rules to my Linux iptables rules file to just be able to surf the internet. Here what I did: * filter -A OUTPUT -p tcp --dport 80 -j ACCEPT -A OUTPUT -p tcp --dport 443 -j ACCEPT -A OUTPUT -p udp --dport 53 -j ACCEPT COMMIT With just those rules, I can't surf the web. I noticed that when I put -A INPUT -j ACCEPT, it works but I don't understand why. So what Input/output port do I need to surf the internet? Thanks a lot. Regards EDIT: It still doesn't work and my rules as as follows: # generated by iptables-save filter :INPUT DROP [10:648] :FORWARD DROP [0:0] :OUTPUT ACCEPT [10:648] -A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPTED COMMIT

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• How to remove/backup script from /etc/init.d/?

  - by iDev247

  I've been working with linux for a while but in a rather simple manner. I understand that scripts in init.d are executed when the os starts but how exactly does it works? What if I want to keep a script but don't want it to start automaticly? Say I have a /etc/init.d/varnish and want to disable it temporary. How do I make sure it doesn't start if the os reboots? I don't want to delete the script. What if I want to add it again?

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• What can i do when my Ubuntu stucked [closed]

  - by Avihai Marchiano

  From time to time firefox cause to my Ubuntu machine to stuck.(nothing run on the machine except firefox) I cant move the mouse or move windows by keyboard. In some cases i have wait for a few minutes and than close last open tab in firefox and it solve the problem in other cases i do restart. Is there any way to prevent it, limit forefox in some way? In windows in most cased even with 100% cpu you can do alt-ctrl-delete and get the task manager, is there a top priority combination in linux that give you terminal? Or any other way ... Run on Ubuntux86 with GNOME , 2GB RAM, dual core cpu

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• My server hostname doesn't work? [on hold]

  - by xSpartanCx

  I've got a raspberry pi running raspbian server edition. It's a modified debian that runs well on the rPi. My problem is that the only way I can ssh into it with putty is through the static ip. My router doesn't recognize the hostname; it shows the mac address as the name. This causes the pi not to show my website online (I think). The only way I've gotten it to work is using my other linux server to forward using virtual hosts, and that has to use the ip address, too. However, now that I have my other server off, the website doesn't work and I can't ssh (or find it anywhere on the network) using the hostname.

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• How to know if a server is physical or virtual? [duplicate]

  - by tachomi

  This question already has an answer here: is there anyway to know if your supposedly fully dedicated server is really a virtually resource-shared machine? [duplicate] 5 answers How can I know if my provider is giving me a dedicated physical server or if I'm getting virtual servers? The provider is from an other country so I don't have the chance to go and see the servers by myself, all of them have linux and they're managed by SSH. All the hire has been done by internet or phone. Are there any commands, dirs to analyze or a way to get this info? They of course tell me that the servers are physical, but when they make some support or hardware/software upgrade or that kind of stuff doesn't take a long. For example, when I ask for a new one with specific requirements at the end they give me more infrastructure than the one I asked for. Of course no one gives extra things without an extra price. Hope I have hinted

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• OpenSwan IPsec connection drops after 30 seconds

  - by drcore

  I'm trying to connection from my Linux Mint 16 box to a CloudStack server. Building up the connection works (pings work across the tunnel). However 30 seconds later the IPsec tunnel gets terminated out of the blue. What could cause this consistent behaviour and how to fix it? The tunnel is setup using OpenSwan (U2.6.38/K(no kernel code presently loaded)) with the L2TP IPsec VPN manager from Werner Jaeger 1.0.9. The client is behind a NAT'ed router and the server is on public IP (CloudStack 4.2) Running ipsec verify complains about IPsec support in kernel. Not sure if this is a problem as the connection is being build up: Checking your system to see if IPsec got installed and started correctly: Version check and ipsec on-path [OK] Linux Openswan U2.6.38/K(no kernel code presently loaded) Checking for IPsec support in kernel [FAILED] SAref kernel support [N/A] Checking that pluto is running [FAILED] whack: Pluto is not running (no "/var/run/pluto/pluto.ctl") Checking for 'ip' command [OK] Checking /bin/sh is not /bin/dash [WARNING] Checking for 'iptables' command [OK] Opportunistic Encryption Support [DISABLED] Tunnel config: version 2.0 # conforms to second version of ipsec.conf specification config setup # plutodebug="parsing emitting control private" plutodebug=none strictcrlpolicy=no nat_traversal=yes interfaces=%defaultroute oe=off # which IPsec stack to use. netkey,klips,mast,auto or none protostack=netkey conn %default keyingtries=3 pfs=no rekey=yes type=transport left=%defaultroute leftprotoport=17/1701 rightprotoport=17/1701 conn Tunnel1 authby=secret right=37.48.75.97 rightid="" auto=add Log file of VPN connection build up: aug. 23 17:12:54.708 ipsec_setup: Starting Openswan IPsec U2.6.38/K3.11.0-12-generic... aug. 23 17:12:55.155 ipsec_setup: multiple ip addresses, using 192.168.178.32 on eth0 aug. 23 17:12:55.165 ipsec__plutorun: Starting Pluto subsystem... aug. 23 17:12:55.174 ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d aug. 23 17:12:55.177 recvref[30]: Protocol not available aug. 23 17:12:55.177 xl2tpd[14339]: This binary does not support kernel L2TP. aug. 23 17:12:55.178 Starting xl2tpd: xl2tpd. aug. 23 17:12:55.178 xl2tpd[14345]: xl2tpd version xl2tpd-1.3.1 started on desktopmint PID:14345 aug. 23 17:12:55.178 xl2tpd[14345]: Written by Mark Spencer, Copyright (C) 1998, Adtran, Inc. aug. 23 17:12:55.179 xl2tpd[14345]: Forked by Scott Balmos and David Stipp, (C) 2001 aug. 23 17:12:55.179 xl2tpd[14345]: Inherited by Jeff McAdams, (C) 2002 aug. 23 17:12:55.179 xl2tpd[14345]: Forked again by Xelerance (www.xelerance.com) (C) 2006 aug. 23 17:12:55.180 xl2tpd[14345]: Listening on IP address 0.0.0.0, port 1701 aug. 23 17:12:55.214 ipsec__plutorun: 002 added connection description "Tunnel1" aug. 23 17:13:15.532 104 "Tunnel1" #1: STATE_MAIN_I1: initiate aug. 23 17:13:15.532 003 "Tunnel1" #1: ignoring unknown Vendor ID payload [4f45755c645c6a795c5c6170] aug. 23 17:13:15.532 003 "Tunnel1" #1: received Vendor ID payload [Dead Peer Detection] aug. 23 17:13:15.533 003 "Tunnel1" #1: received Vendor ID payload [RFC 3947] method set to=115 aug. 23 17:13:15.533 106 "Tunnel1" #1: STATE_MAIN_I2: sent MI2, expecting MR2 aug. 23 17:13:15.534 003 "Tunnel1" #1: NAT-Traversal: Result using draft-ietf-ipsec-nat-t-ike (MacOS X): i am NATed aug. 23 17:13:15.534 108 "Tunnel1" #1: STATE_MAIN_I3: sent MI3, expecting MR3 aug. 23 17:13:15.534 010 "Tunnel1" #1: STATE_MAIN_I3: retransmission; will wait 20s for response aug. 23 17:13:15.545 003 "Tunnel1" #1: received Vendor ID payload [CAN-IKEv2] aug. 23 17:13:15.547 004 "Tunnel1" #1: STATE_MAIN_I4: ISAKMP SA established {auth=OAKLEY_PRESHARED_KEY cipher=aes_128 prf=oakley_sha group=modp2048} aug. 23 17:13:15.547 117 "Tunnel1" #2: STATE_QUICK_I1: initiate aug. 23 17:13:15.547 010 "Tunnel1" #2: STATE_QUICK_I1: retransmission; will wait 20s for response aug. 23 17:13:15.548 004 "Tunnel1" #2: STATE_QUICK_I2: sent QI2, IPsec SA established transport mode {ESP=>0x0ecef28b <0x3e1fbe3b xfrm=AES_128-HMAC_SHA1 NATOA=none NATD=none DPD=none} aug. 23 17:13:16.549 xl2tpd[14345]: Connecting to host <VPN gateway>, port 1701 aug. 23 17:13:18.576 xl2tpd[14345]: Connection established to <VPN gateway>, 1701. Local: 21163, Remote: 12074 (ref=0/0). aug. 23 17:13:18.576 xl2tpd[14345]: Calling on tunnel 21163 aug. 23 17:13:18.577 xl2tpd[14345]: check_control: Received out of order control packet on tunnel 12074 (got 0, expected 1) aug. 23 17:13:18.577 xl2tpd[14345]: handle_packet: bad control packet! aug. 23 17:13:18.577 xl2tpd[14345]: check_control: Received out of order control packet on tunnel 12074 (got 0, expected 1) aug. 23 17:13:18.577 xl2tpd[14345]: handle_packet: bad control packet! aug. 23 17:13:18.599 xl2tpd[14345]: Call established with <VPN gateway>, Local: 39035, Remote: 57266, Serial: 1 (ref=0/0) aug. 23 17:13:18.605 xl2tpd[14345]: start_pppd: I'm running: aug. 23 17:13:18.605 xl2tpd[14345]: "/usr/sbin/pppd" aug. 23 17:13:18.606 xl2tpd[14345]: "passive" aug. 23 17:13:18.606 xl2tpd[14345]: "nodetach" aug. 23 17:13:18.606 xl2tpd[14345]: ":" aug. 23 17:13:18.606 xl2tpd[14345]: "file" aug. 23 17:13:18.606 xl2tpd[14345]: "/etc/ppp/Tunnel1.options.xl2tpd" aug. 23 17:13:18.606 xl2tpd[14345]: "ipparam" aug. 23 17:13:18.607 xl2tpd[14345]: "<VPN gateway>" aug. 23 17:13:18.607 xl2tpd[14345]: "/dev/pts/4" aug. 23 17:13:18.607 pppd[14438]: Plugin passprompt.so loaded. aug. 23 17:13:18.607 pppd[14438]: pppd 2.4.5 started by root, uid 0 aug. 23 17:13:18.608 pppd[14438]: Using interface ppp0 aug. 23 17:13:18.608 pppd[14438]: Connect: ppp0 <--> /dev/pts/4 aug. 23 17:13:21.650 pppd[14438]: CHAP authentication succeeded: Access granted aug. 23 17:13:21.651 pppd[14438]: CHAP authentication succeeded aug. 23 17:13:21.692 pppd[14438]: local IP address 10.1.2.2 aug. 23 17:13:21.693 pppd[14438]: remote IP address 10.1.2.1 aug. 23 17:13:21.693 pppd[14438]: primary DNS address 10.1.2.1 aug. 23 17:13:21.694 pppd[14438]: secondary DNS address 10.1.2.1 aug. 23 17:13:46.528 Stopping xl2tpd: xl2tpd. aug. 23 17:13:46.528 xl2tpd[14345]: death_handler: Fatal signal 15 received aug. 23 17:13:46.529 pppd[14438]: Modem hangup aug. 23 17:13:46.529 pppd[14438]: Connect time 0.5 minutes. aug. 23 17:13:46.529 pppd[14438]: Sent 1866 bytes, received 1241 bytes. aug. 23 17:13:46.529 pppd[14438]: Connection terminated. aug. 23 17:13:46.562 ipsec_setup: Stopping Openswan IPsec... aug. 23 17:13:46.576 pppd[14438]: Exit.

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• How to stop a ICMP attack?

  - by cumhur onat

  We are under a heavy icmp flood attack. Tcpdump shows the result below. Altough we have blocked ICMP with iptables tcpdump still prints icmp packets. I've also attached iptables configuration and "top" result. Is there any thing I can do to completely stop icmp packets? [root@server downloads]# tcpdump icmp -v -n -nn tcpdump: listening on eth0, link-type EN10MB (Ethernet), capture size 96 bytes 03:02:47.810957 IP (tos 0x0, ttl 49, id 16007, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 124, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.811559 IP (tos 0x0, ttl 49, id 16010, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 52, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.811922 IP (tos 0x0, ttl 49, id 16012, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 122, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.812485 IP (tos 0x0, ttl 49, id 16015, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 126, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.812613 IP (tos 0x0, ttl 49, id 16016, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 122, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.812992 IP (tos 0x0, ttl 49, id 16018, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 122, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.813582 IP (tos 0x0, ttl 49, id 16020, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 52, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.814092 IP (tos 0x0, ttl 49, id 16023, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 120, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.814233 IP (tos 0x0, ttl 49, id 16024, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 120, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.815579 IP (tos 0x0, ttl 49, id 16025, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 50, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.815726 IP (tos 0x0, ttl 49, id 16026, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 IP (tos 0x0, ttl 50, id 31864, offset 0, flags [none], proto: ICMP (1), length: 76) 77.92.136.196 > 94.201.175.188: [|icmp] 03:02:47.815890 IP (tos 0x0, ttl 49, id 16027, offset 0, flags [none], proto: ICMP (1), length: 56) 80.227.64.183 > 77.92.136.196: ICMP redirect 94.201.175.188 to host 80.227.64.129, length 36 iptables configuration: [root@server etc]# iptables -L Chain INPUT (policy ACCEPT) target prot opt source destination ofis tcp -- anywhere anywhere tcp dpt:mysql ofis tcp -- anywhere anywhere tcp dpt:ftp DROP icmp -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source destination Chain OUTPUT (policy ACCEPT) target prot opt source destination DROP icmp -- anywhere anywhere Chain ofis (2 references) target prot opt source destination ACCEPT all -- OUR_OFFICE_IP anywhere DROP all -- anywhere anywhere top: top - 03:12:19 up 400 days, 15:43, 3 users, load average: 1.49, 1.67, 2.61 Tasks: 751 total, 3 running, 748 sleeping, 0 stopped, 0 zombie Cpu(s): 8.2%us, 1.0%sy, 0.0%ni, 87.9%id, 2.1%wa, 0.1%hi, 0.7%si, 0.0%st Mem: 32949948k total, 26906844k used, 6043104k free, 4707676k buffers Swap: 10223608k total, 0k used, 10223608k free, 14255584k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 36 root 39 19 0 0 0 R 100.8 0.0 17:03.56 ksoftirqd/11 10552 root 15 0 11408 1460 676 R 5.7 0.0 0:00.04 top 7475 lighttpd 15 0 304m 22m 15m S 3.8 0.1 0:05.37 php-cgi 1294 root 10 -5 0 0 0 S 1.9 0.0 380:54.73 kjournald 3574 root 15 0 631m 11m 5464 S 1.9 0.0 0:00.65 node 7766 lighttpd 16 0 302m 19m 14m S 1.9 0.1 0:05.70 php-cgi 10237 postfix 15 0 52572 2216 1692 S 1.9 0.0 0:00.02 scache 1 root 15 0 10372 680 572 S 0.0 0.0 0:07.99 init 2 root RT -5 0 0 0 S 0.0 0.0 0:16.72 migration/0 3 root 34 19 0 0 0 S 0.0 0.0 0:00.06 ksoftirqd/0 4 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/0 5 root RT -5 0 0 0 S 0.0 0.0 1:10.46 migration/1 6 root 34 19 0 0 0 S 0.0 0.0 0:01.11 ksoftirqd/1 7 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/1 8 root RT -5 0 0 0 S 0.0 0.0 2:36.15 migration/2 9 root 34 19 0 0 0 S 0.0 0.0 0:00.19 ksoftirqd/2 10 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/2 11 root RT -5 0 0 0 S 0.0 0.0 3:48.91 migration/3 12 root 34 19 0 0 0 S 0.0 0.0 0:00.20 ksoftirqd/3 13 root RT -5 0 0 0 S 0.0 0.0 0:00.00 watchdog/3 uname -a [root@server etc]# uname -a Linux thisis.oursite.com 2.6.18-238.19.1.el5 #1 SMP Fri Jul 15 07:31:24 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux arp -an [root@server downloads]# arp -an ? (77.92.136.194) at 00:25:90:04:F0:90 [ether] on eth0 ? (192.168.0.2) at 00:25:90:04:F0:91 [ether] on eth1 ? (77.92.136.193) at 00:23:9C:0B:CD:01 [ether] on eth0

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