Server :: Can't SSH As Root Anymore (but Can Still FTP)
Jan 4, 2011
So at work, we host most of our clients websites on a server we have (from Lunar Pages) and I can ssh as root from work just fine, but from home, all of a sudden, I can't ssh as root anymore. I can't ssh as anyone (certain users have permission to ssh).
I can still FTP into the different sites and stuff from home, so it isn't an AFP issue (I doubled checked the deny_hosts.rules (or whatever it is) just in case).
I used to be able to ssh as root into the server from home... what could have changed? Has anyone had this problem? Being able to FTP from all IPs but only SSH from some?
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May 15, 2010
Something weird happened lately (more probably I messed something up). I don't get prompted for root password anymore, for example while installing updates or software. It's not like the system remembers the password and does everything without asking for credentials, it simply doesn't ask and states that it can't do anything because of lack of privileges.
I use GNOME and can run YaST and Software Installation - I get asked for root password when running these. I can't set privileges when doing thing's outside those, like for example installing updates through that update icon on the bottom toolbar, or trying to install something by clicking on *.rpm.What might be the cause of the problem is that I was trying out KDE lately, and because I didn't like it I uninstalled it's packages. System asked what to do with dependencies and I chose to save most of them, but I might have uninstalled a bit too much.
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Apr 4, 2010
I have had my server for quite some time now with a website running, but just recently I cannot connect in any possible way. Even from the server itself. I've tried the domain name, ip address, and internal address but it always comes up cannot connect to server. The only thing I can think of is we recently installed nortan security suite on our main computer. I've checked all the settings however and I didn't find anything wrong. Does anybody have any idea what may be causing this? I'm a little tempted to just re-install everything and start from scratch.
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Apr 29, 2011
Before I start a flame war, I'd like to qualify my question with...I have a boatload of ram and a VERY thin install.(CLI openSuse 11.4-64) If I'm running the most baseline, text-only-install...and the whole system install is like 2GB or less, and I have 8GB of ram (which I could easily upgrade to 16). At install time...do I really need a swap partition at all? What purpose could a swap serve if I have that much ram in such a trimmed down environment?
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Oct 6, 2010
My server with Opensuse 11.1 doesn't boot anymore.This afternoon I've installed imagemagick over yast. After that the server still works for a couple of minutes. Then it stops working (I'm not sure if it's because of the installation). so I had to reboot it.But it never came up again.It doesn't boot anymore.I get the boot menu and can make my choice. But it doesn't matter what I choose (standard or failsagfe) the only message I get is:
Code:
Booting 'Failsafe -- openSUSE 11.1 - 2.6.27.48-0.2'
root (hd0,0)
[code]...
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Jun 23, 2011
I have a qmail server running binc imap since more than two years and had no problems. Recently after deleting thousands of mails the system became unstable (when opening Thunderbird I did see new mails which disappeared a few seconds later and reappeared some when... after a couple of minutes or hours). There where a few problems in my network which are now sorted. My main problem is now I cannot access the binc server anymore. When I run
Code:
qmail:/var# mconnect 127.0.0.1 143
* OK Welcome to Binc IMAP Copyright (C) 2002-2005 Andreas Aardal Hanssen at 2011-06-23 18:04:39 +0000
01 LOGIN user password
[Code]....
I am sure that has not changed in the last two years and have no idea why it did not work... but before raising the thread I noticed a few mails disappeared form my server and also files created did not exist after the reboot. My server is running on a vm so I guess that is not a general problem...
To make it short, the folder /var/qmail/bin/bincimapd was not accessible by the user nor the group shown in the strace above. After modifying the access rights I can see my mails again :-) The multiple login attempts also disappeared
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Apr 2, 2010
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
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Jun 22, 2011
seems like I killed my softraid. First, my initial setup: 2x 1.5TB SATA disks -> raid1 with mdadm -> lvm -> multiple LVs as luks partition This worked for a while now, even though I made a bad mistake; I created the raid out of the whole disks (instead of creating partitons on them). I didnt notice because it worked...
Now one disk failed, but I could still access the other disk which I moved to another server. mdadm recognized it during boot, after vgscan --mknodes; vgchange -ay I saw the luks partitions in /dev/mapper/ and could mount them via luksOpen. Went well several times, I did not use the disk anymore to avoid killing it also.
Just today when I wanted to move the stuff to my new raid, this way wont work anymore
First of all, dmesg reports a wrong size (500G instead of 1.5T)
Code:
[ 1.943127] sd 3:0:0:0: [sdc] 976817134 512-byte logical blocks: (500 GB/465 GiB)
[ 1.943153] sd 3:0:0:0: [sdc] Write Protect is off
[ 1.943155] sd 3:0:0:0: [sdc] Mode Sense: 00 3a 00 00
[Code].....
What can I try to get my data back?
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Jul 14, 2011
I've started to get emails that would typically come from [URL] as [URL]. These emails come from services that send out emails (backup programs) directly, or from cronjobs. I've logged in as the non-root account and either sudo su - or su - to root and the restart the service at one point or another. If I login directly as root and bounce the service or cron the emails come across as from root. I don't see anything in my environment variables after I su to indicate what would cause this. I'm not sure where else to look? A pam setting? This seems to have happened between Fedora 10 and 14 (did a bunch of overdue upgrades recently) I've only got Fedora so I don't have anything to compare to. In Fedora 10 I did not have this problem.
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Jun 3, 2011
I use evergreen for 11.1 on a hosted server. I just did a "zypper up" and I can't boot anymore!I still have access to the server through a recovery system a bit like the openSUSE rescue. But my main mail server in on this machine, so I don't have anymore access to the evergreen mailing list (of course I can subscribe from gmail of else, but i try first here).
I can reinstall from my hosting provider, but I just missed the point that this reinstall is not from 11.1 but to 11.4, and that mean I have to reconfigure most of my service, and this takes time.is there a way I can reinstall original 11.1 base? may I stop the evergreen repo, do zypper up and be undergraded?important notice: this server use a provider kernel and lilo, not the evergreen kernel. I now have a 2.6.38 kernel next time I will try simply issuing "lilo".
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Aug 29, 2010
This thread belongs in 'Networking' probably but that category seems to get less traffic.
Perhaps the mod will move it there after some discussion is generated...
Got this from transmission-remote x.x.x.x -l
Code:
I think I can figure it out, but I don't know where the config files go/are for transmission-remote.
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Feb 4, 2010
I have an ubuntu server with a printer plugged to it through USB. I used to set the server ip on the Printing panel to print remotelly to it, but it doesn't work anymore since I upgraded to karmic. I can see the printer in the printer panel, and I can even print a test page through the panel, but I can't print from any other application. When I come to the printing screen, the printer has the message retrieving information from printer and I can't print. I guess the cups server is working well as I can print the test page, and I used to print with hardy, looks like if the changes made in the printing panel don't have any effect on the system.
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Jul 26, 2010
I am using ubuntu10.04-server 64bit AMD with fluxbox. After I ran Matlab in a shell (without GUI) the shell does not display characters anymore, but will execute any command, I just can't see the characters that I'm typing.. I use aterm and xterm, does anybody know why that is, am I missing a package?
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Mar 7, 2010
I'm not exactly new to the linux world. I've been messing with it for six months now. I recently decided to host a public web server out of my home. The is nothing business related merely personal.Now that you have a brief background I will bring you the technical details.I'm apache2 with php, joomla, and mySQL on openSUSE 11.2. a dns server is currently configured. My problem is as follows I set up apache initially and used the default index.html page which simply says It Works. I configured my DNS at the domain registar godaddy.com. After changing the A record to point to my IP the server worked. I then proceeded to install Joomla which installed correctly.Now here is my problem. When I attempt to pull up my domain it appears my DNS is longer working properly and get a DNS error. When I attempt to go directly to IP with my server I still get the initial index.html that says it works. I'm not sure how this is possible and I have cleared all dns info, temp files cookies ect.... I have also had other people test this is as well. I've check my root document pointers for the apache website and they all point to the correct location.
My set up is as follows
Modem
Router
Windows 7 Machine
Sun Microsystems Virtual Box with openSUSE with the network adapter bridged so it can obtain an IP from my router
I'm completely lost at this point and have spent 2 days trying to resolve the issue, any help would be much appreciated. I look forward to everyones reply.
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Jul 17, 2011
I'm running Debian Testing and am confounded by a new problem.mysql -u root -p works great.mysql -u mythtv -p doesn't. This is a first for me.I did the usual as mysql root: mysql> create user 'mythtv'@'127.0.0.1' identified by 'mythtv';Query OK, 0 rows affected (0.01 sec)
mysql> grant all on *.* to 'mythtv'@'127.0.0.1';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
[code]....
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May 12, 2010
I'm moving an office intranet server to a new machine running CentOS 5 with apache 2.2.3. Everything worked fine on my old CentOS server and nothing new or fancy being tried on the new machine: default server, no name virtual hosts etc.. However, on the new server I can only see the index.html page when I browse to it. Index.html is a frameset which calls other pages to load from subfolders to /var/www/html. The frameset loads but in each frame I see "The requested URL /hot_stuf/data_colm.html (etc.) was not found on this server.".
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Sep 1, 2010
I have debian lenny, when I run an application is slow to load (example: iceweacel open and it takes, I can hold him iceweacel work normally), I tried to change from gnome to another and the same thing, went down some services (samba, squid) and nothing. I open a terminal and it takes, I want to duplicate it and do it fast. From a terminal without X (tty1) with root run mc and moves quickly, also run as root "sudo mc" and takes to boot.Any action done with sudo it takes to run.
Can not be what it takes to make starting the applications, not the PC because it is new, and from one moment to another I began to pass this
The sudoers file is fine, in the log's nothing unusual, since other PC take long to enter samba.
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Jun 7, 2011
Can I re-size a root LVM on the fly?
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Feb 17, 2010
When creating 10 samba users I also created Linux users. I do not want these Samba users to be able to use putty, winscp etc to access the server.
Do you know how I can restrict ssh access to specific users?
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Jul 12, 2010
i have fedora 7 server running just zimbra email server. but i forgot the password.
i used a livecd ubuntu then i went to /etc/shadow i used gedit and i remove the hash between the ": :" then saved file. i reboot but i still can not logging. and it does a weird thing. i wrote root then the i hit enter when ask for the password i hit enter. then the screen clean up by it self then it ask for logging again. It does nt say that the password is wrong or any other error.
also i went to single-user mode then once i m at # i wrote passwd root then new password then i reboot but i still have the same problem. i cant logging.
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Mar 25, 2010
I know that I can use the Redirect directive in apache to redirect users to another domain with "Redirect permanent / http://www.newdomain.tld", but when I use that line the entire URL is preserved.
For example, if a user tries to access [url] they will be redirected to [url]. Is it possible to redirect all requests to the root of the new domain [url]?
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Mar 31, 2010
how to set up a fake ROOT dns that I would be using inside my virtual test environment with private address range. Basically, I want to create a ROOT server that will only contain information to two separate dns servers that are authoritative for its respective domains/zones.
I can't seem to find anything on the net about this subject. Basically, how is a ROOT server configured and how should the fake hint-file for authoritative dns-servers be configured?
I want basically domain.xx and domain.yy to be able "find eachother" by using response from ROOT server. I know I could set up forwarders to respective domain on each of the virtual DNS server instead, but I want to experiment a bit the way I stated above - with a "real" (fake) ROOT server, if it is possible!
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Jan 22, 2010
I would like to use mod_rewrite to rewrite all instances of .php and _ in file names in the root directory
So far I have:
But this throws out error 500. Could someone correct my code?
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Nov 25, 2010
The filesytem is (or was ) 500Gb ext3. We had a small electrical power failure yesterday, the server do not stop but the disk array (SCSI Raid 5 disk system) restarted. This morning, the filesystem was not available (I/O error) so I reboot the front end. The fsck failed with the message: root inode is not a directory There are nearly 400Gb of data on this filesystem. Any idea to solve the problem ? Google always point to a commercial software or windows software...
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Dec 27, 2010
I want to mirror root hard disk in SUSE LINUX 10.1.I have two 80G hard disks, I searched in google but I did not find any good link to describe this.
Code:
Server1:~ # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda6 16G 1.2G 14G 8% /
udev 1.3G 140K 1.3G 1% /dev
[code]....
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Jan 20, 2010
Is root mirroring is supported in RHEL /RHAS operating systems? If so, how to find out whether the root mirroring is enabled or not?
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Apr 2, 2010
After upgrading to CentOS 5.4, my root path seems screwed.The issue is present for CRONJOBs that run as the root user as well as when I su to the user through SSH.
I need the following path ALWAYS:
PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/sbin:/usr/local/bin:/usr/X11R6/bin
It currently only gives root:
[code]....
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Dec 13, 2010
I have RHEL4 server. my root is able to login from CUI mode but not able to login from GUI mode. normal user is able to login from GUI mode and we go to root through su command but directly root is not able to login from GUI
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Apr 27, 2011
I run fetchmail to download all my emails from remote mail server to my linux server.
But every time when i run fetchmail -v i am getting a warning that " Running as root is discouraged"
I just want to know whether it is unsecure to run fetchmail as root user.
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May 10, 2011
I've searched high and low for an answer. This seems so simple...
Domain = chadmccan.com
Server 1 = admin.mo.chadmccan.com
Server 2 = leroy.mo.chadmccan.com
Email for my domain is handled by Google Apps. MX records point there, I receive a ton of email there.I have 2 systems. admin.mo.chadmccan.com, which is designed to be the "gateway" for all services, including email.On the same network, is leroy.mo.chadmccan.com. It's just an application server, for random apps, including a webserver.I just want all of my systems to email anything that goes to "root" to blahblah@chadmccan.com relaying via admin.mo.chadmccan.com. Is this impossible?
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