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I'm very new to linux and don't really know what I'm doing and that's what caused my problem...
I'm running slackware. I was trying to figure out how to get my qmail working with some new domains I put on my server. I was looking at "/etc/aliases.cdb" then I suddenly started getting "Segmentation fault". I rebooted the server and now if I try to login I get:
I noticed when the server boots I get several "Segmentation fault" errors. It looks like apache is running but postgreSQL isn't.
I have someone doing a demo on one of the sites at 9:00am in the morning and now the site isn't working and I can't login.
Distribution: openSuSE 42.1_64+Tumbleweed-KDE, Mint 17.3
Umm, segmentation faults and still booting? As a first guess I'd hazard it's a hardware problem. Do you have a testsuite for that? Since you are in a hurry you might open the box and move the memory out and in again...
I think somehow the "/etc/aliases.cdb" got messed up evenn though I didn't save when I exited (but it did ask me if I wanted to save changes and I didn't make any changes).
It does let me in as "nobody" but nothing else. I think it may have something to do with login and checking if there is any mail. Can I stop the checking of mail when I login as root. I can boot to the distribution CD and login as root but have to mount the hda1 manually.
I will take the server down and check hardware connections but I think I screwed up the software somehow.
What is the "/etc/aliases.cdb" and can it be fixed.?
- "I am able to login on the console as "nobody" but still can't login to any other accounts." are you talking about a local login or a remotely one? 'cause "nobody" account should not be among users with local login rights.
The segmentation fault can appear when - for example - a program is trying to write smth in a read-only location, so not necessary a hardware problem.
My advice - restore an old backup if you have any (without your last modifications into your system). For security purpose you should run a check with a tool like Tripwire to see if any break into your system was performed. You can also have a look into your PAM configuration (if you don't have a backup) as your system seems to be "locked".
My question: why are you using Slackware? - its not the happiest option to learn Linux as a beginner.
I'm running slackware because it was installed for me but the person that installed it isn't available anymore so I have to work with what I have.
There is no backup to bo back on...
Is there a was to do a "basic" login that doesn't check mail or load other options.? I really thinks is beacuse the "/etc/aliases.cdb" file is screwed and in digging around I have found that "newaliases" will rebuild it but I need to get logged in as root to do it. I think it let me in as nobody becasue it doesn't check mail for that account. Currently I'm booted to the distribution CD and logged in as root and mounted /dev/hda1 as /mnt and mounted /dev/hda3 as /usr but if I do the "newaliases" I'm not sure where it will write the "/etc/aliases.cdb" file.
OK... Maybe I'm barking up the wrong tree with "/etc/aliases.cdb" and newaliases. I was only looking at that because it was the last thing I was doing before this got messed up. I looked that the date of the "/etc/aliases.cdb" and I really don't think that's the problem.
I rebooted the server and I start getting "Segmentation fault" on boot up, these are examples:
/etc/rc.d/rc.sysvinit: line 34: 49 Segmentation Fault stty onlcr 0&1 Using /etc/random-seed to initialize /dev/urandom
Please can you email me to silviu_p_atc at yahoo dot com your following files: /etc/rc.d/rc.sysvinit and /etc/rc.d/rc.M
Also can you dmesg to a file and send me that files to the same email address.
You can try reverse the process of what you have done to your system before crashed (some new programs/updates installed, etc).
dmesg is a command for printing/control the kernel ring buffer (you will use it to extract the info from the boot process).
Why do you need a ftp if you are logged in rescue mode directly from system console?
Run this way: dmesg > dmesg.txt and then email me the dmesg.txt
PS: I have received the files from you. I will have a look on those lines....who knows...