|
My company is migrating a number of RHEL5.5 servers from one data center to another. As part of this we're being asked to construct replica servers from scratch that exactly match the existing servers. Is there an easy way to mimic the installed packages between the two servers? We have other means to mirror the configuration, but the actual packages installed is giving us problems. Basic googling about yum doesn't really show anything, but I'm a linux newbie and I'm sure I'm not googling for the right thing.
|
#
¿
Jul 13, 2012 14:50
|
|
|
|
| # ¿ Apr 19, 2024 10:50 |
|
|
spankmeister posted:rpm -qa will give you a full list of installed packages. Is it just a matter for reformatting that and feeding it back into yum or rpm on the new server, then? What I'm trying to figure out is if there's a way to at least partially automate the process rather than trying to do these by hand.
|
|
#
¿
Jul 13, 2012 15:01
|
|
|
spankmeister posted:Sure, if you do Fantastic! Thank you very much.
|
|
#
¿
Jul 13, 2012 15:29
|
|
|
We have an odd DNS client issue with some RHEL5.5 servers. We're shifting the nameservers to retire some old appliances. We've updated resolv.conf with the new nameserver IPs and commented out the old ones. named and network are restarted, but the old nameservers still show DNS requests from the servers until a reboot. What else do we need to restart/modify to clear the old nameservers completely?
|
|
#
¿
Aug 28, 2012 21:11
|
|
|
Thanks for the information. I'm not sure if that's going to be easier or harder to get permission to do than just rebooting the VMs. Have to get with the web guys and find out what they're doing.
|
|
#
¿
Aug 29, 2012 01:51
|
|
|
I'm responsible for a couple of RHEL6.7 servers here at work. Security has recently asked that we move five directories (/tmp, /var, /var/log, /var/log/audit, and /home) to separate partitions. I've gotten the space allocated and the logical volumes created for each directory (appropriately sized), but I'm a bit stumped as to the procedure for safely moving the data from the existing directories to the new location and then ensuring the mount points move. Can anyone point me at the appropriate documentation, or give me a rundown? Thanks.
|
|
#
¿
Oct 13, 2015 21:40
|
|
|
evol262 posted:Change fstab to reflect the new volumes. Bring it up in single user or write a dracut module (I can probably give you basic code for one if you want) to move /var/log and /var/log/audit before any of the normal logging/auditing starts, unless you don't mind losing a little bit. Use tar or rsync's archive option (or cp -p, maybe, depending on what you've got going on there) to move stuff over How do I access the old locations if they're mounted on the new (currently empty) partitions? Does single-user mode enable this somehow?
|
|
#
¿
Oct 14, 2015 03:25
|
|
|
evol262 posted:Because you can unmount the new locations (which unmasks the old data), and mount them somewhere else (/tmp/new or whatever -- your tmp is probably tmpfs and doesn't need any copying), without worrying about losing logs from important services/wtmp/audit/whatever OK. So it's: 1) Modify fstab with the new devices/mounts. 2) Reboot into single-user mode. 3) Unmount new locations and remount them to like /mnt/whatever. 4) Copy data w/rsync from old location to new location. 5) Reboot back into multi-user. Correct? Thanks for the all the help; DISA STIG is no fun to implement if you're trying to backfit it.
|
|
#
¿
Oct 14, 2015 17:10
|
|
|
Anyone have any opinions on Ubuntu releasing their snap package for a bunch of distros today? I know app packaging can be a contentious topic, but I'm curious if this is actually an improvement or Yet Another Packaging System.
|
|
#
¿
Jun 14, 2016 20:47
|
|
|
I'm trying to play around with Fedora 25 on a Lenovo laptop, and I'm having difficulties with the wireless adapter not being recognized. It's a Broadcom BCM4352. I can't seem to find anything more current than Fedora 23 for getting it installed, and using the packages from rpmfusion.org hasn't resolved the issue. Am I just SOL because lol Broadcom? Or are there steps I can look into to get in working? I'm a reasonable newbie to Linux, so be gentle.
|
|
#
¿
Dec 9, 2016 06:43
|
|
|
evol262 posted:Is wl loaded? Using akmod-wl or kmod-wl? I did install kmod-wl, but I'm not sure how to check if wl is loaded. Is that modprobe wl or some other command?
|
|
#
¿
Dec 9, 2016 16:34
|
|
|
evol262 posted:lsmod No, does not appear in that listing. So the next question would be how to get it installed/loaded?
|
|
#
¿
Dec 9, 2016 20:05
|
|
|
modprobe's coming back with: Module wl not found in directory /lib.. which I guess tells me there's something wrong with the installation.
|
|
#
¿
Dec 9, 2016 20:24
|
|
|
Hypnobeard posted:modprobe's coming back with: Can anyone tell me what I should be installing for this? I feel like I just missed the right package, and my google-fu is weak.
|
|
#
¿
Dec 10, 2016 02:28
|
|
|
evol262 posted:akmods --force? Along with akmod-wl. So this and the other reference to the arch forum eventually led me to figure out my problem: I hadn't disabled secure boot and OS optimizations in the laptop's BIOS. Disabling this let the wl driver load just fine and all was fixed. Thanks for the help!
|
|
#
¿
Dec 10, 2016 19:20
|
|
|
Can anyone here recommend a decent Linux-friendly USB wireless adapter? Ideally Fedora 25 compatible, but really I'll take anything that's well-maintained. The Broadcom card built into my laptop is just too much of a headache.
|
|
#
¿
Dec 20, 2016 14:29
|
|
|
What's the current recommended study guide for the RHCSA exam?
|
|
#
¿
Apr 6, 2018 14:09
|
|
|
evol262 posted:Other than the official one, there are 2 books. E: nevermind, re-read your response, realized I missed the callout to the book thread. Thanks! Hypnobeard fucked around with this message at 15:44 on Apr 6, 2018 |
|
#
¿
Apr 6, 2018 15:41
|
|
|
What could prevent root from being able to delete a file? Selinux is permissive, the file is not immutable, the directory is not immutable. Nothing is locking the file as far as I can tell. What else should I look at? RHEL 7 if it matters.
|
|
#
¿
Sep 2, 2021 00:05
|
|
|
RFC2324 posted:what kind of filesystem? What kind of media? Ext4, vdisk.
|
|
#
¿
Sep 2, 2021 01:08
|
|
|
rt4 posted:Mounted readonly? Doesn't appear so. /proc/mounts shows rw.
|
|
#
¿
Sep 2, 2021 01:27
|
|
|
Computer viking posted:And just as a test, if you touch a new file in the same directory, can you delete that? I can, yes.
|
|
#
¿
Sep 2, 2021 03:05
|
|
|
isaboo posted:Dear Hypnobeard, Honestly I slipped into "answer the script questions so you don't get angry asking for escalation" mode for a bit. Too many years as a computer janitor.
|
|
#
¿
Sep 2, 2021 03:18
|
|
|
Odd SSH error: We have a security compliance scanner that uses SSH public keys to connect to various boxes to run various tasks. When connecting to a specific RHEL 7 box, it completes the key exchange and authenticates successfully, but then immediately after executing a command the connection is dropped. Jan 7 09:09:24 server sudo: our_user : TTY=pts/1 ; PWD=/home/our_user ; USER=root ; COMMAND=/bin/sh -c printf "command_start_%s" "nOMpQPKf"; netstat -a -n; printf "command_done_%s" "6qNTMuwy" Jan 7 09:09:24 server sshd[22959]: Read error from remote host 10.1.1.44 port 50620: Connection reset by peer The user executing the command has the appropriate sudo rights. Anyone have any idea what could be causing this? Increasing debug logging doesn't give us anymore insight, unfortunately.
|
|
#
¿
Jan 7, 2022 16:59
|
|
|
|
| # ¿ Apr 19, 2024 10:50 |
|
|
Pablo Bluth posted:As it's redhat, SELinux? Sorry, should have included: SELinux is (temporarily) disabled.
|
|
#
¿
Jan 7, 2022 17:38
|
|