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Kickstart Ethernet Devices

Linux CentOS 6

(2014-02-17) Problem the specified interface eth0 does not exist Solution In the general case, sp...

Updated 10 months ago by david

Force NFS v3 Mounts

Linux CentOS 6

(2014-07-17) Problem My CentOS 6 client is trying to mount everything using NFS v4 and I want it ...

Updated 10 months ago by david

Client nis Setup

Linux CentOS 6

(2019-03-25) NIS client setup cookbook #!/bin/bash DOMAIN=my.nis.domain SERVERNAME=server4.my.ni...

Updated 10 months ago by david

Leap Second

Linux CentOS 6

Problem My nasty java app is eating up all the CPU it can get. (Possibly sharing with something e...

Updated 10 months ago by david

0x80070035 the network path was not found

Linux CentOS 6

(2013-06-03) Problem Trying to browse to a samba server by name from a Windows system yields the ...

Updated 10 months ago by david

Ignore Host-ID

Linux CentOS 6

(2014-06-26) Problem I want to ignore the host-ID on connection for ssh. Yes, I know it is a dumb...

Updated 10 months ago by david

Install VMware Tools Yum Repository

Linux CentOS 6

(2014-01-14) Install VMware tools into a new Linux VM with a repository that will keep them updat...

Updated 10 months ago by david

Active Directory with SSSD

Linux CentOS 7

(2021-02-03) Rough Notes install realmd # realm discover # realm join zoneName -U adminUser i...

Updated 10 months ago by david

arp

Linux CentOS 7

(2016-11-22) Problem arp -a is too brief. In keeping with the new trend of banging in long comman...

Updated 10 months ago by david

Auto SSH Agent

Linux CentOS 7

(2019-09-04) Notes that probably won't make any sense to anyone other than myself. This is border...

Updated 10 months ago by david

DSA SSH Hostkeys

Linux CentOS 7

(2017-05-25) Problem I have a stone-age host monitor thing that is complaining that it can't find...

Updated 10 months ago by david

Unban IP Address

Linux CentOS 7

(2017-05-06) Solution # fail2ban-client set sshd unbanip a.b.c.d

Updated 10 months ago by david

Get Sendmail To Listen On 25, 425, and 587

Linux CentOS 7

(2017-05-03) Problem I want one sendmail.cf to control access to port 25 (no auth, access rules o...

Updated 10 months ago by david

grub parameters

Linux CentOS 7

(2017-09-13) Changing Grub Parameters With Grubby for KERNEL in /boot/vmlinuz-*; do grubby --...

Updated 10 months ago by david

hostname

Linux CentOS 7

(2016-11-21) Problem Setting the computer's hostname hasn't changed for the last 20 years or so. ...

Updated 10 months ago by david

Install Grub

Linux CentOS 7

(2018-08-21) Problem RHEL 7 doesn't have "grub" command for making RAID-1 disks bootable. Alleged...

Updated 10 months ago by david

journalctl

Linux CentOS 7

(2019-09-11) Examples # journalctl -u vmtoolsd --since=today # journalctl -u sshd

Updated 10 months ago by david

Passwordless SSH On NFS Home Dirs

Linux CentOS 7

(2017-04-28) Problem Can't use passwordless ssh to a target system. Solution In this particular c...

Updated 10 months ago by david

PHP 7

Linux CentOS 7

(2021-02-23) Installing PHP 7 Instructions for7.4 Older information (2017-09-13) CentOS 7 provide...

Updated 10 months ago by david

SSH no matching cypher

Linux CentOS 7

(2019-03-15) Problem Unable to negotiate with $IP port 22: no matching cipher found. Their offer:...

Updated 10 months ago by david