CentOS 5 Networking :: Change ISCSI Server Listening Port 3260 - Scsi-target-utils

May 14, 2010

iSCSI Server, can I change the default port 3260 to other port ?

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CentOS 5 :: Differences Between Scsi-target-utils & Iscsi-target

May 8, 2009

I want to run ISCSI target on CentOS. Both "scsi-target-utils" and "iscsi-target" can be used.

They seem to have the same function.

Is there any significant difference between them, on performance or stability?

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General :: SFTP Server Port Blocked On Uni Network / Need To Change Listening Port

Oct 21, 2010

VERY new to linux, erm but I have an issue that needs solving!I recently moved to university, where their network blocks sftp port 22, this means that I cannot connect to my FTP server which is running a version of linux.Now I've got this ftp server connected to a seedbox and it was created using the following walk through..Code:I have written this guide for a friend, but I though it would be useful for others as well.

There are several guides floating around, but I found that most always cock up in some way. This one is tried and tested to work on Debian Etch (on an OVH rps, but should apply to most servers).If there is a new stable release of rtorrent/libtorrent then I will update this guide to show you how to update it (without reinstalling the whole server).

At the bottom there are also instructions to install ftp access & some network monitoring software.Basically, I would really like someone to be able to construct the commands on how to change the listen port for sftp connection on linux or add another port to the list that Linux would use so that I could put in through putty.

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Server :: SSH Is Still Listening On Port 22 After Change To A New Port?

Apr 6, 2011

I edited "sshd_config" file and changed port 22 to a new port. After I restart ssh, it listens on port 22 and the new port. How can I disable SSH to listen on port 22? I'm using Debian.

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Red Hat :: CentOS 5.3 - Set Up A Partition As An Iscsi Target?

Mar 10, 2010

I've been trying to figure out how to set up a partition on my CentOS serve r as an iscsi target, so I can access it from another CentOS client.I've been reading the manuals and various pages on the web, and nothing is very clear. I just want to be able to create a partition on my server, define it as a target, and then have my client initiator mount it.

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CentOS 5 :: How To Configure Iscsi Target

Jan 12, 2010

i have installed centOS5. i want to configure iscsitarget. i know that iscsi target is built-in in centOS5. how can i use iscsiadm utility to configure iscsi target. please describe in detailed.

1.) i want to make 4 drives (4Drives OR 4LUNs)in iscsi target each with 5GB space.
2.) please describe and highlight where we mention disk space(5GB)

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CentOS 5 :: ISCSI Target Directory - Getting Error For Make Command

Feb 1, 2010

I am trying to install iscsi-target on centos 5.4 i386. When I go into the iscsi-target directory and type make I get the following error:
[root@cluster-storage iscsitarget-1.4.19]# make
cc: /lib/modules/2.6.18-164.el5/build/include/linux/version.h: Datei oder Verzeichnis nicht gefunden
cc: keine Eingabedateien
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -le: unary operator expected
/bin/sh: line 0: [: -lt: unary operator expected
make -C usr
make[1]: Entering directory `/opt/iscsitarget-1.4.19/usr' .....
make: *** [kernel] Fehler 2

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Server :: Apache Is Not Listening On Port 8080?

Dec 2, 2010

My Apache is not listening on port 8080. Hence i cant access my server manager [URL]

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Networking :: Ssh Listening To A Non-standard Port?

Oct 2, 2010

I am running Ubuntu 64-bit and I have been trying to set up an ssh connection between the Ubuntu server and a Windows 7 client (using putty) and when I enter the command:

sudo netstat --inet -lpn | grep sshd
I get the following:


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Security :: IPtables And FTP When Server Listening On Non-Standard Port?

Nov 9, 2009

I'm using iptables with modules ip_contrack_ftp to be able to use passive ftp. It works well as long as port 21 is being used as listening port. Is there any way to make it work when I configure my ftp server (vsftpd) to listen on an alternative port, lets say 21001 or something? The helper module only seems to be working properly with the standard port, so I was wondering whether there was a way to "tell it" that another port is being used? I mean, of course I make a rule in fw to allow traffic to the alternative port.

But once it's time to start passive connection, then the iptable module cannot handle it properly. I could solve the problem by making a range of passive ports in the ftp-server configuration and allow the incoming traffic to them, but then using helper modules doesn't make any sense. I just want to allow the traffic to the listening port and then want the ip_contrack_ftp module to take care of the rest. This is what I do today - but only port 21 seems to be working. Is there a way to do this with a non-standard ftp port?

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OpenSUSE :: Install Iscsi-target Package In 11.1?

Mar 3, 2010

I want to install iscsi-target package in opensuse 11.1.

Step 1:
linux-7bvl:~ # zypper search iscsitarget
Loading repository data...


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Ubuntu :: Connecting To QNAP ISCSI Target

Nov 8, 2010

connecting to my QNAP iSCSI target from Ubuntu (10.04). I've followed the instructions in the QNAP manual, but I something goes wrong when I need to list the nodes. When I enter


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Fedora Installation :: Installer Forces Use Of ISCSI On SCSI System

Jun 6, 2010

I'm trying to install Fedora 11 x86_64 on system with Adaptec U160 and 2 Ultra160 HD. It is not part of a network and iSCSI is not wanted. But the installer keeps selecting iSCSI automatically and won't let me change it. I try to do a "replace linux system" with my own partition scheme-which preserves the partitions already on this drive. I eventually have to exit the installer.

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Fedora Installation :: 11 Cannot Start ISCSI Target Support?

Jun 20, 2009

was able to install iSCSI target via yum, configured a couple of target LUNs, in fact all the same steps that worked on Fedora 10 appeared identical. However, when I try to start the service the following happens.

[root@Server01 ~]# service iscsi-target start
Starting iSCSI target service: FATAL: Error inserting crc32c_intel (/lib/modules/ No such device


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CentOS 5 Server :: Change My Ssh Port From The Default 22

Feb 9, 2010

I want to change my ssh port from the default 22 to something else. I did the following: vi /etc/ssh/sshd_config; uncommented Port 22 and changed it to the desired port number. After that I run service sshd restart for the change to take an effect. Now, when I want to login into the new port I receive this message - Network error:Unable to route to host. When I change the port back to 22, I will be able to login again.

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Ubuntu Installation :: Karmic - Booting From ISCSI Target Fails?

Jan 2, 2010

I have an Intel NIC supporting iSCSI boot.I successfully installed Karmic Server 64-bit on the iSCSI target.But it won't boot from it.It looks like it can't mount the iSCSI target:

Gave up waiting for root device. Common problems: ...
and it drops me to a BusyBox shell.


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Server :: How To Change Sendmail Port Number In Centos 5.4

Aug 4, 2011

currently i want to configure sendmail port number 25 im using these port numberalready how can i chage my senmdail port no.

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General :: What Is The Factory Default SCSI Target For /dev/sd0

Dec 17, 2010

What is the factory default SCSI target for /dev/sd0?

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Networking :: Route Only For A Specific Port And Target?

Mar 14, 2011

I have to route some packages over the right interface.I default route everything for the target-network over one network-interface. That works perfectly. But i have to route packages for one specific host and one specific port over another network-interface. I tried many things with the route-command, but i think there's no possibility to route only one port? May i can do this with iptables? I only found ways to forward some packages, which are coming in over one interface. But in my case all packages go out over one interface.

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Networking :: Using A Perl Script To Test For A Socket Listening On A UDP Port On A Remote Host?

Mar 10, 2011

is it possible using a perl script to test for a socket listening on a UDP port on a remote host ?I work in an environment where netcat is not allowed and from time to time I need to see if a UDP port is open on a remote host.

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Server :: Change Ssh Port On The Servers Including Centos And Ubuntu?

Mar 10, 2010

i need to change ssh port on the servers including centos and ubuntu when i make changes to /etc/ssh/sshd.config and change the port to something else restart sshd then i can determine that port 22 is not working but ssh does not connect to new port it says "no route to the host"

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CentOS 5 Networking :: Unable To Port 8080 On CentOS VPS Server

May 30, 2011

i am not able to port 8080 on my CentOS VPS server.I have followed all the instuctions as mentioned on iptables wiki page.Also I am able to telnet my ip address and port number, But can not access from browser.

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CentOS 5 Server :: Create GFS Shared Storage Without SAN/iSCSI

Sep 3, 2009

I built a CentOS 5 Linux cluster with GFS storage using local RAID volume and share it with gnbd_export/import on two web-servers. Now I need to expand that storage to another servers local volume. I saw the picture in the manual, but I don`t know, how can I create that scheme.

I can use gnbd_export on the second server and gnbd_import on the first. In that case I will have two volumes on the first storage and I can expand volume group, logical volume, etc on it.

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CentOS 5 Server :: Way To Allow Two Servers To Use Same File System On SAN Using ISCSI?

Mar 9, 2010

What is the correct way to allow two servers to use the same file system on a SAN using iSCSI?Is it GFS on the two servers?

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Server :: Error SCSI Controller Was Reset Due To SCSI BUS Noise Or An Invalid Signal?

Feb 15, 2010

i m facing same error in most of the HCL servers. the problem is that it throws error while booting and sometimes not throws error. the error is :-

Feb 13 13:17:25 fe13s kernel: Adapter 0: Bus A: The SCSI controller was reset due to SCSI BUS noise or an invalid signal. Check cables, termination, termpower, LVDS operation, etc.

Feb 13 13:17:30 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc

Feb 13 13:29:15 fe13s kernel: Adapter 0: Bus B: The SCSI controller successfully recovered from a SCSI BUS issue. The issue may still be present on the BUS. Check cables, termination, termpower, LVDS operation, etc

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CentOS 5 Server :: ISCSI Devices Appears As Different /dev Names On Different Hosts

May 22, 2009

I have a fairly simple iSCSI setup using two devices, but they have swapped names on different machines. running CentOs 5.3 ia64, and using iscsi-initiator-utils-

[root@vm1 ~]# fdisk -l
Disk /dev/xvda: 4194 MB, 4194304000 bytes
255 heads, 63 sectors/track, 509 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes


Any way to get iSCSI to mount the devices as consistent device names ?

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CentOS 5 Server :: ISCSI Volumes No Longer Mount After Reboot?

Sep 22, 2011

We have a Centos 5.6 server mounting two iSCSI volumes from an HP P2000 storage array. Multipathd is also running, and this has been working well for the few months we have been using it. The two volumes presented to the server were created in LVM, and worked without problem.We had a requirement to reboot the server, and now the iSCSI volumes will no longer mount. From what I can tell, the iSCSI connection is working ok, as I can see the correct sessions, and if I run 'fdisk -l' I can see the iSCSI block devices, but the O/S isn't seeing the filesystems. Any LVM command does not show the volumes at all, and 'vgchange -a y' only lists the local boot volume, not the iSCSI volumes. My concern is that, the output of 'fdisk -l' says 'Disk /dev/xxx doesn't contain a valid partition table' for all the iSCSI devices. Research shows that performing the vgchange -a y command should automatically mount any VG's that aren't showing, but it doesn't work.

There's a lot of data on these iSCSI volumes, and I'm no LVM expert. I've read that some have had problems where LVM starts before iSCSI and things get a bit messed up, but I don't know if this is the case here (I can't tell), but if there's a way of switching this round that might help, I'm prepared to give it a go.There was absolutely no indication there were any problems with these volumes, so corruption is highly unlikely.

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CentOS 5 Server :: Kickstart - Scsi Controllers - Partitioning ?

Feb 27, 2011

I am looking for a way to partition 2 disks automatically with are both connected to 2 different scsi controllers.

I want one disk on one controller to be partitioned with boot and lvm and the other one with a different partition layout.

I there a way in kickstart to do this, like for instance specify the drive module?

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CentOS 5 :: Server Crash - Restore Backup - Scsi ?

Apr 25, 2011

Client has a server running 5.5 (I think) and it they moved locations. This server is used in other locations (state) via ssh tunnel as well so they can all access files.

When attempting to boot up I get screenshot 1 (superblock errors)[url]

They supposedly have a backup on a hot swap scsi and I want to know how/if I can restore it using that backup if I cant fix the superblock boot/error issue.

I took some other screenshots:


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CentOS 5 :: Postfix Mail Server Will Not Start Tried To Change Postfix Smtp Port?

Oct 4, 2010

so i set out to change the default smtp port the server uses because my ISP blocks port 25 and i need the email to work in outlook. this morning i could receive email, but not send it. so i did some research and thought that i needed to edit the master.cf file in /etc/postfix/ by commenting out this line: smtp inet n - n - - smtpd -oand replace it with587 inet n - n - - smtpd (587 being the port i want to use)somewhere along the lines postfix server stopped running and now i cannot get it to start.if i try using SSH it crashes immediately and if i restart it in simple control panel nothing happens

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