Server :: SSH To Work Without A Password Between CentOS And Cygwin
Jul 31, 2010
CentOS 5.4 Cygwin CYGWIN_NT-6.0-WOW64 1.7.5(0.225/5/3) I'm trying to setup password-less login from my CnetOS server to Win 2008 Server via ssh. I have followed the fab walk-through here and many others. When i try to connect I get this msg after a few seconds delay...
Code:
Connection closed by 10.8.0.6 When ran with ssh -vv...
I've seen how to do this from native linux native server to linux native server. Not a problem. My question has to do with ssh/scp exchange of key exchange between a windows cygwin server and a linux server.There seems to be no /home/root/.. to hold the key exchange files. I've tried this between a cygwin server with a /home/administrator/..subdirectory and the /root subdirectory on the linux server. Is this how I should do this?Someone else set this up between these two servers earlier but forgot to document how it was done in his notes.I don't want to break the existing systems by setting up the key generation incorrectly on the functioning pair's of servers.
I have a program that is completed under Linux, it requires library tidy, PCRE and libcurl, which could be found in Cygwin too.
I could compile my linux program through Cygwin and produce an EXE file, however it do require 'cygwin.dll' installed by the users.
I am wondering if I could have someway to produce out a stand-alone EXE file that could run independently from Cygwin ? ( I don't mind to combine that cygwin.dll and the EXE together for a larger EXE file).
As one of our friends told, I have downloaded and installed the CYGWIN on my winows xp pc, to learn and practice linux commands.when the icon of it is double clicked, its screen as appearing as below:
System1@system ~ $ MY DOUBT IS :
I could make a directory with command like mkdir. But after that it is not allowing commands like touch, vi, vim etc.How i have to write data or a file in it. Still anything to do after installing CYGWIN.
In my CentOS configuration, when I use vim6.3 to edit a file, then close it, and re-open it, my cursor starts out at the line where I last left off. In my cygwin (on Windows) configuration, when I use vim7.3, I don't get this behavior. The viminfo does exist and does seem to get read (because if I type '0 it will go to my last cursor location - but that is globally and could change the file being edited). I've also looked at the .viminfo file and see it getting updated as expected. In my .vimrc file, I have this:
Quote: set viminfo='100,<50,f1,"500,/100,:100
Note that on the CentOS side if I open foo, then I open bar, then I open foo again, my cursor is in the right place for foo, whereas on cygwin if I do this, my cursor would be at the 1st line of foo.. If I were to type '0, it would actually switch to editing bar and put the cursor where I last left off. Anyhow, this all boils down to asking how I get my cygwin vim to act like my CentOS vim.
My problem is that I cant "rewrite" older password to new. It looks like I do:
Changing password for user johny. New UNIX password: Retype new UNIX password: passwd: all authentication tokens updated successfully.
all looks OK but after set up new password I can log in using OLD and NEW password. It's very unsecure for me. So in fact I cant change password and it looks like centos create next password to one accout and one account have more then one password... how can I prevent it? pls help me couse its very unsecure in my case.user looks in file shadow /etc/shadow like this:
As an example, I have two servers, sm-i222 and fileserv. sm-i222 is a Win2k3 system running cygwin. fileserv is a linux box running RHEL 4.7. sm-i222 maps /cygdrive/c to the c: drive and /cygdrive/d maps to the d: drive(actually a single 4TB RAID). from the sm-i222 server /cygdrive/c I call a small script from the crontab. The internal IP for fileserv is 10.0.0.7. See below.
These three lines perform well in that they make a full transfer of the fileserv:/home/ directory on fileserv to the appropriate place on sm-i222 using rsync. I use rsync instead of scp because I have to traverse subdirectories and symbolic links in the /home/... filesystem on fileserv. What I'm looking to do is use rsync to do an incremental transfer/backup of only the files that have changed since the last full backup. I'll manage the times I do this manually or in crontab. A colleague says this is do-able, but not how. Rsync.org says this is do-able but not how. Cygwin says this is do-able... see rsync.org. I believe what I'm looking for is a single rsync line like I have above that only transfers the changed files on fileserv to sm-i222.
I was able to setup password-less ssh on two CentOS 5.5 servers, I don't encounter any problem on root account but when I try on another user it fails and ask for a password
I'm running cygwin 1.7.7 on a win2k3R2 Standard edition server. I have a RHEL 4.7 linux host I'm scp'ing files from to the windows system using a simple cygwin scp command from what appears to be OpenSSH_5.5p1 on the cygwin host. When I run the simple scp command on the cygwin host, the counters initially display and increment/decrement, albeit what is at a much slower rate than is actually taking place. After the percent complete reaches a little less than 10%, all the counters from the cygwin console window cease to increment/decrement.
However, when I cd to the directory on the cygwin host where the file is being scp'ed to, the file is continuing to be transferred and a much higher rate than the counters seem to show. Finally, when the file transfer is complete by directly seeing the byte count as equal between the hosts, the scp counters will suddenly jump to 100% complete. This is not the case with my linux to linux scp's. The counters increment/decrement as expected and transfers are about what I'd expect over the same network infrastructure. This appears to be a cygwin ssh/scp implementation issue. I've posited this question to cygwin with no response as yet. The only reference I've been able to find on the 'net refers to buffering causing file transfers to appear to complete later than the transfer really does..........
The reason I want to delete the LUKS password is simply that I do not want to have to put it in for each server just to get the system to boot. I am planning to cluster the servers as well and like I said before I don't want to put the password in each time since they won't be running all the time.
I am a Windows user for the last 14 years and am getting into the Linux world. I have a CentOS server set up at home and have been using SFTP. But now I am needing to install a program that has a exe file I can lauch from my Windows machine to the CentOS server but the only problem is it only uses FTP over port 21. I have found quite a few different posting on how to install FTP but only some of the commands they give work and I get a lot of no such directory. I will be using the FTP locally but have been getting frustrated setting it up. I do have it installed an am able to start the service but cannot connect. Is there a step by step information for setting this up? I am new to the command line and all the SCO stuff I used to know back in the early 90's is all gone from memory.
My server is Centos 5.3 I have php 5.1.6. some of plug-ins does not work I have to upgrade it to 5.2.6. To upgrade it I have to install a third party repositories.How can I protect my current php in case if the repository does not work I enable ( or role back) the Centos default php?
I have been a loving fan of your software for years now and have been trying to move into a new dedicated server, getting away from my VPS I have been anchored to. I had to change static ip's on my main internet line and thus got locked out of my server. I have the box here and I can console into it but I cannot get the new ip address to work. I have tried so many things it would waste more time than asking for the correct answer.
I know you are wise in the ways of the server as you have gotten me out of a jam in the past. I am currently running Centos 5.4 and a trial version of WHM/cPanel (which needs to be re-registered to the new address if I can ever get back online.)
I am trying to connect to my VNC Server from a Windows 7 Box running TightVNC:I've followed all the instructions on this page:[URL]And I changed my xstartup scripts:
/etc/sysconfig/vncservers # The VNCSERVERS variable is a list of display:user pairs. #
when I installed my server I had an FTP server running, I thought it was vsftpd. I stopped vsftpd one day though, and I could still FTP into my server. This mystery FTP daemon is SFTP (using port 22), and now it does not work. I've tried enabling vsftpd and I still cannot connect to my server. I've checked my firewall and I have FTP and SSH allowed. What might this mystery FTP program have been?
I created a cluster with two nodes and a machine for managers with luci, if a machine reboot the cluster function by transferring the resource (IP address), if forced to stop the machine (pull the plug) the cluster does not work.
mod_dir does not work properly with SSL (https) !?
When working with http, there is no problem: If url "http://www.abc.com/test" is requested, apache appends a "/" to the url and then respones to browser with code 301, telling it to request the newly-modified url ""http://www.abc.com/test/".
However, with https, things are not going as expected: If url "https://www.abc.com/test" is requested, the new url responsed by apache is "http://www.abc.com/test/", but not "https://...", resulting in browser's page load error.?
I was able to do on Debian and Ubuntu Servers X applications running on remote servers where I was able to login via SSH. Tried the same with CentOS did not worked. in /etc/ssh/sshd_config
i have apache, php, mysql, etc installed, and running.
Phpinfo displays properly, and i can even do a few simple database calls via databases i made from the commandline.
I try to install the phpMyAdmin package (i think its from RPMForge, but it might be from EPEL). The package installs without problems, yet when i attempt to go to localhost/phpMyAdmin, i get a 404 error.
Is there something i need to do with my apache configuration to make this work? There seems to be very little documentation on this package.
If there isnt anything i could do, i could go through and do it by hand, but i want to have the advantage of using packages for the automatic updates.
EDIT1: Ok, i reinstalled the package, and now i get a 403:Forbidden instead of a 404.
Sendmail does not work anymore. //deinstaled everything [root@localhost ~]# top -b -n1 | mail -s 'Process snapshot' mymail@mymail.net /usr/sbin/sendmail: No such file or directory
//reinstaled everything, restart sendmail [root@localhost ~]# top -b -n1 | mail -s 'Process snapshot' mymail@mymail.net [root@localhost ~]# /etc/mail/submit.cf: line 544: fileclass: cannot open '/etc/mail/trusted-users': World writable directory //fixed that with '-o' in /etc/mail/submit.cf, restart sendmail
[root@localhost ~]# top -b -n1 | mail -s 'Process snapshot' mymail@mymail.net // in mail.log: Apr 2 12:49:16 localhost sendmail[6252]: o32AnGis006252: to=mymail@mymail.net , ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=49856, relay=[127.0.0.1] [127.0.0.1], dsn=4.0.0, stat=Deferred: Connection refused by [127.0.0.1]
//test [root@localhost ~]# telnet localhost 25 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused telnet: Unable to connect to remote host: Connection refused
//commented out #O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA //in sendmail.cf, restart sendmail
//test [root@localhost ~]# telnet localhost 25 Trying 127.0.0.1... telnet: connect to address 127.0.0.1: Connection refused telnet: Unable to connect to remote host: Connection refused
I have a dedicated server running CentOS 5, Plesk 9.2.2, SMTP Postfix and Courier-IMAP.The issue I have is that on all domains on the server receiving email works fine however sending email never seems to work. This is from email programs, my phone, webmail and PHP. None of them seem to be able to send email. If it is of worth Spam Assassin is running however I don't feel it is causing any problems.
I have been searching in the forum and google but still not lucky enough to figure out yetI have a lighttpd server runningbecause apache consume so much CPU and memory) andqmailtoaster (just setup).Here is the configuration in cgi modules:
installed a new centOS 5 server, and after the installation, everything seem to work well but for httpd not running. when i try to issue the restart command i get the following error:
[root@appdev ~]# service httpd restart Stopping httpd: [FAILED] Starting httpd: httpd: Syntax error on line 206 of /etc/httpd/conf/httpd.conf: Cannot load
Don't work nslookup from clients guest OS.I have LinuxMint 7 and I'm installed VirtualBox on her. I created three guests OS. Two CentOS and XP
Name The first CentOS linux1.starline.ca The second CentOS centos.starline.ca The third XP xp2.starline.ca[code].....
On the clients guest OS nslookup don't work. It write : timed out; no servers could be reached .What is going on? Why nslookup don't work from clients guest OS?On client machine in the file /etc/resolv.conf have record ameserver 168.135.88.2
I'm trying to make a DHCP server work on my CentOS 5.4 box, but I have placed it on another subnet than the one that it is going to serve. I use a helper address on my router to make the the DHCP requests being routed to the DHCP server on the other subnet.
