Red Hat / Fedora :: SSH Delay Prompting Password?
Oct 26, 2010I have been connecting to ssh but now it takes longer time to prompt for username and also password.Can any one tell what is the reason why it takes time
View 3 RepliesI have been connecting to ssh but now it takes longer time to prompt for username and also password.Can any one tell what is the reason why it takes time
View 3 RepliesI have F10 installed on my laptop with disk encryption enabled. When I boot the machine I get a "Password:" request on screen but can't start typing for 30 seconds or more.Presumably the OS is not ready. This means I have to wait at the keyboard tapping a key until I see asterix. It's a waste of time and frankly a bit clunky for a modern OS. How can I change the behaviour so that the "Password:" request only appears when I can actually type?
View 4 Replies View Relatedactually i have generated public and private key using "ssh-keygen" command.i have appended it to the ~/.ssh/authorized_keys file in the other netowork system.still it's prompting for password.all the systems in my network are using fedora12 and fedora13.i dont know what's wrong with it.does it need to change any configuration files ..if so what are all the changes to be made?i am trying to login using the same user for whom i created the pub key..no impersonation
View 1 Replies View RelatedThere are over a dozen of servers that I need to monitor for services running on them. Hence, I have created a separate VM on which I am hosting scripts for various purposes. I have written a script (bash) that checks the status of the services running on those servers. Since my script has this line of command (for example):
Code: /sbin/service vsftpd status I have created a user (let's name it user_monitor) and added it to /etc/sudoers file by issuing "visudo" on all the servers. Since I need to execute the command remotely from the VM so I have generated a Public RSA Key (ssh-heygen) and added it to "authorized_keys" file on all the servers. But on some servers when issue a command such as the following:
[Code]....
i have just installed latest centis annd when i leave my system and lock it using ctrl + alt + L when i try to loggin it doesn't prompt me for any password for loggin and i am at the desktop without any authentication.
View 5 Replies View RelatedI'm having problems setting up an email client. Tried both Evolution (which looks good) and Thunderbird but both of them will not prompt for my password when connecting to my mail servers. I've quadruple checked my settings and everything looks OK however I do not get the password prompt.Creating an account in Evolution is almost the same as that shown in the documentation but I do not get prompted for the time zone. Checking where Evolution stores the passwords also comes up with different results on my computer as the location specified does exist but is empty.Evolution is running at 2.28.1 and Thunderbird is 2.0.0.24
View 5 Replies View RelatedI have installed Ubuntu three times now, and I'm running into same problem all the time, both with Karmic Koala (9.10) and now also Lucid Lynx (10.04):
When I configure Evolution for IMAP access to my GMAIL account, it never prompts me for a password. Instead, I guess Evolution tries to connect without any password and fails every time. Switching to Thunderbird didn't do the trick either, so I think it might have something to do with the Keyring daemon. My Internet connection is fine, as I can access my account under other operating systems.
Things I've tried so far:
"Forget passwords" in the evolution menu
Forcing shutdown of evolution and deleting the ~/.evolution folder (as suggested by https://bugzilla.redhat.com/show_bug.cgi?id=221112)
Accessing the keyring and deleting the default keyring
[code]....
I have 4 machines running 10.04 32 bit Intel--- all use SSH to connect to a remote server drive (disk). All except one of the machines work just fine when accessing the remote drives. The fourth PC keeps asking for a password with every directory change.
If I select cancel three times (on the troublesome unit), the desired directory opens but then the same routine occurs with the next directory change.
Its taking too much time to prompting me to enter password after boot-up and it is asking me to enter PAM_MOUNT password.
I entered the password which i use to login to my computer and it is not letting me to log-in.
I tried using safe mode and am not able to login through command line.
ive installed adobe AIR on my ubuntu karmic x64 distro as per the instructions on adobe's website, but whenever an adobe air app launches it prompts me for a password. I remember (before gnome-keyring-manager was replaced with seahorse) I found a way around it, but i gather that gnome-keyring-manager has been replaced now
View 3 Replies View RelatedI have configured a FTP (VSFTPD) Server in RHEL 5.6, which resulted me a default directory /var/ftp/pub. Even i have cerated another Directory /var/ftp/accounts. Where Accounts Directory is owned by user x in my server. I have a issue with this, It prompts me User and Password while accessing this ftp 192.168.5.20 in Linux Servers. But while i am trying this through a windows machine by ftp://192.168.5.20 it gets directly accessed without prompting me any User and Password.
I need to have FTP environment same like windows. where it must prompt me user name and password, and i must be able to upload and download data from my windows clients.
I am using CentOS 5.6 and recently, well since I updated to 5.6 when I login through ssh/telnet I am prompted to change the password of any account which is my LDAP directory. Local accounts are unaffected. I haven't tried the console as this server is tucked away in a tiny room. This is really annoying because I don't want to run password expiry on that server and I'm sure that there's nothing in LDAP to indicate password expiry is on. My shadowmax is 9999 by default for every account..which is over 27 years I think. It's only started recently. I'd like to know how I can turn the expiry message off. I'd like to get rid of cracklib as well.
my etc/pam.d/sshd is
#%PAM-1.0
auth include system-auth
account required pam_nologin.so
account include system-auth
password include system-auth
session optional pam_keyinit.so force revoke
session include system-auth
session required pam_loginuid.so
I am suddenly not prompted for my password when I run any command as sudo on a few of my Ubuntu servers.
if I run sudo -K, the session is cleared, and I am prompted again for my password, however it saves/caches it until I run sudo -k again even if I log out and back in. I want it to prompt me for my password, as it should (and did) by default, for security.
Any ideas what could be causing this?
Here's my /etc/sudoers file code...
delay the retry response from SSH (for, say, 10, 20 or 30 seconds) when a bad password is tried by a whacker? I mean, when I'm getting hit by 10 or more break-in attempts, is there some way to make SSH delay the next try from the site that's trying?I seem to remember something about this but haven't been able to find it and, so far, reading the SSH documentation hasn't been
I have DenyHosts running (that puts entries in /etc/hosts.deny after a few tries to break in) and I completely block China, Korea and a few others that are a constant annoyance with IPTABLES but I do get hit pretty much every day and would like to discourage the bastards as much as possible (the hits are a second or so apart which tells me they're automated and I figure delaying the response will discourage 'em).For example, here's the overnight entries from /var/log/messages (the "refused connect" are from /etc/hosts.deny entries generated by DenyHosts):
Code:
May 13 03:49:50 fubar sshd[30255]: refused connect from 200.49.226.12 (200.49.226.12)
May 13 03:51:27 fubar sshd[30256]: refused connect from 200.49.226.12 (200.49.226.12)
[code]....
Before upgrading to Lenny there was no noticeable delay between entering a username & the prompt for a password when logging in via ssh. Now there is about a 5-second delay which is rather annoying. There is no delay when logging in through the Gnome UI. Anyone know why the delay is there? Is it something about ssh under Lenny? Is there a setting that can be changed?
View 1 Replies View RelatedRecently i am having an issues with my fedora11. Whenever i got the login screen when i start up my OS, i entered the password and press enter, it will bring me back to the same screen as i never entered any password.It is always repeating the same tasks (inserting my password and enter) for about 6 times then only success to login to my computer
View 1 Replies View RelatedAfter GRUB 2 comes up (I'm running Ubuntu 10.10) and I choose the OS to boot, there is about a 5 second delay where nothing appears to happen after I make the selection -- no disk activity. It happens consistently every time I boot. Again, this is after I choose the OS to boot, so it shouldn't have anything to do with the standard delay to allow me to choose the appropriate OS.Is there a good way to troubleshoot this and determine what is causing the delay?
View 4 Replies View RelatedI have an encrypted disk, using LUKS / dm-crypt, on Fedora 14.Every time I boot, I am immediately prompted for the passphrase. This happens VERY early in the boot process, and is a graphical screen (ie not console text). If I hit escape, I am prompted in a text-mode for the same passphrase. If I hit escape or return a few times, boot continues normally.
I only mount the disk occasionally, and don't want to be prompted at boot for the passphrase to luksOpen the disk at boot. I manually cryptsetup luksOpen and then mount it when I want access. I just don't want to be asked at boot, and don't want to unlock it until I do so manually.Does anyone how how I can tell Fedora to not attempt to decrypt / mount this filesystem at boot?It's not in /etc/fstab. I should mention, no LVM, just mdadm raid5 on the partition + luks /dm-crypt.
Last Saturday, I ran an update on my laptop using F12 and received a new kernel. As of this morning, the new kernel hasn't shown up on my desktop, using f 11. (Yes, I check every day.) Currently, my uptime is 34 days, so you can see how long it's been since the last kernel update for F11. Does anybody know why there'd be an update for one version and not for another? In case anybody's wondering:
[joe@khorlia ~]$ uname -r
2.6.30.10-105.2.23.fc11.i586
Not sure if this is hardware or software so I am raising the question here. I have an Ithaca 280 printer that worked great on fedora 8 with cups 1.3.3. When I upgraded my server and installed Fedora 12 with cups 1.4.2 i noticed a 5 second delay between sending a print job to the printer and it actually printing. This issue doesnt happen with laser printers, just the ithaca thermal printer. I have tested this with 10 other ithaca 280 printers and all of them have the same result. I am using a raw driver, and it is an IP based printer setup for Jetdirect in cups. The setup is identical on a Fedora 8 server as it is on this Fedora 12 server. I have even taken the steps to upgrade to cups 1.4.4 just to see if it was corrected in a newer version, but the issue is still there. I have a utility that writes the raw text directly to the printer which i used to test that it wasnt an issue with the printer or its internal print server. That utility allows the document to print immediately.
what is causing this delay and how to correct it? If not, does anyone know how to print directly to the printer using cups instead of letting it go to the queue first like cups normally does for print jobs?
I just installed Fedora on my desktop (previously Ubuntu)
The root and boot partitions are on a OCZ RevoDrive, which is seen as 2 separate drives and used software raid0 for speed.
Here is a link to my bootchart, which shows a 17sec delay before anything starts.
[url]
md0 and md1 are on the RevoDrive, the boot is a raid1 partition (as i was unable to boot from a raid0 partition) and the root partition is a raid 0 partition
Code:
Any one know away to get rid of the delay at the start of the boot chart?
i'm using Fedora 11 which i installed a couple of days back... i added my user name to the sudoer list but everytime i run the sudo command it takes at least 20 + seconds before anything happens... this happens everytime i run sudo... in comparison to running su things happen immediately... anyone else experiencing this? now everytime i install or run a command requiring root access i just use su...
View 7 Replies View RelatedI have a really bad delay on skype. The calls start off fine, but quickly the audio falls behind. I've messed around with a bunch of different audio settings and nothing helps, only completely removes audio.
View 1 Replies View RelatedI'm experiencing a peculiar problem with Fedora 12. There is a ten-second delay when various command-line applications (e.g. ssh, wget) connect to remote machines for the first time. The delay is also seen when the remote machine name does not exist.Subsequent connections to the same remote machine are immediate.This isn't a DNS delay - the host and dig commands return immediately, for both existing and non-existant hostnames. It's not a reverse DNS lookup by the remote machine either: other Fedora 10 machines do not experience this delay and neither did my two Fedora 12 machines when they were running Fedora 10.
time this was something to do with nscd, the name service caching daemon. Stopping nscd changes the delay to five seconds, but subsequent connections are no longer immediate - there is again a 5 second delay. This implies that nscd is caching the names correctly.The delays are always precisely 10 seconds, or 5 seconds when nscd is not running. I have confirmed this with the time command. There appears to be no odd network traffic (tested with tcpdump) and nscd appears to be running normally. I've confirmed this with a Fedora 12 live CD as well - nscd is not started at boot, but once started, the machine behaves in exactly the way described above.
I need to do a NFS mount after my PC boot up. So I put an entry in root's cron to do it:
@reboot /bin/mount sun:/mynfs /mnt/sun/mynfs
The mount occasionally fails. But when I manually mount after booting, it always succeed. So I suspect maybe the cron sometimes got executed before the network was started?
Is there a way to delay the mount until after the boot sequence finishes? You know, other than put the command in a script and add a sleep in front of it?
I want to install my system on my U-Disk.So I need to delay the time when system starting before the system recognized the U-Disk. How to change it in the grub? If I change it ,how can I save it in order not to change it every time I start the computer? Is it in the /boot/grub/menu.lst?
View 6 Replies View RelatedI recently updated my fc12. before the update all was well but now it takes very long to boot. when i checked the text output by pressing F3 it stops at "Applying Intel CPU microcode update".
View 1 Replies View RelatedI've been fiddling with Ubuntu for the first time ever today and eventually managed to get the drivers for the network adapter installed. Now, I'm trying to get the computer running it onto my home network; I set it up to connect automatically, entered the WEP key, and hit apply, marveling at how convenient it was.
...So far it's still caused me less trouble than some of the the bizarre problems I've had trying to get a Windows computer on a network, but...it just won't connect. At all. It says it is connecting, eventually prompts me for the key again, says it is connecting again, etc, repeat on infinite loop. Except for the occasional times that it stops trying and then, oddly enough, proceeds to state that it is not connected to e of neighbor's network*, which it wasn't trying to connect to in the first place
I just upgraded Ubuntu 10.04 LTS. Now when I use vpnc to connect from the command line using vpnc-connect, I'm not only prompted for my password as usual, but now also being prompted for a "Passcode". Here's what the login attempt looks like:
Enter password for jegan@some.vpnhost.net:
Passcode for VPN jegan@216.23.18.33:
I've been using the same /etc/vpnc/default.conf file for years.Note that I do not have an /etc/vpnc.conf, or any of the other configuration files that vpnc checks for.Here's a modified copy of my /etc/vpnc/default.conf file:
## generated by pcf2vpnc
IPSec ID CRL-Qfe
IPSec secret XM-j-245Rv[code].............
When I run 'apt-get install <some_package>' it asks you to enter configuration information for some packages. I'd like to be able to install a list of packages automatically without having to enter any information, ie. an automated installation. I looked in the man page for apt-get, and I was looking for maybe 2 possibilities:
1) Tell it not to require input; I'll download the configuration files later
2) Enter the options in the apt-get command.
I found what _might_ be what's required for option (2), the --option, but I found the instructions for using it not understandable. It says 'The syntax is -o Foo::Bar=bar', but I don't know where to go from there, and I'm not even sure it's relevant to what I want to do. I want to install nslcd, and either sort out the configuration later (I have an ldap config file ready), or enter the ldap configuration along with the apt-get command. At present I have to enter the information interactively, which negates the possibility of an unattended install.