Postfix

General

NFS

NFS & Firewall ports

NFS configuration

NTP

ntpd

NTP issues

Linux Links

Fedora Linux

Administration

Clonezilla Live

  • Command line to restore individual partition:
    gunzip -c VolGroupHPSTD-root.ext3-ptcl-img.gz.aa | partclone.ext3 -r -d -s – -o /dev/sda2

sendmail

  • ERROR: did not issue MAIL/EXPN/VRFY/ETRN during connection to MTA after turned on authentication

Apache HTTPD

SSH

Perl

ASSP

PPPoE Server

  • If not specified IP address at /etc/pap-secrets, then client cannot connect?
  • General PPP options

WiFi

  • Linux Wireless Support page
    List all the Linux supported Wireless adapter by chipset and vendor/model (USB / PCI or CardBus or PCI-E / PCMCIA)

LVM

iptables

  • use iptables as a simple tcp proxy
    iptables -A PREROUTING -p tcp --dport 80 -d old.ip.add.ress -j DNAT --to new.ip.add.ress
    iptables -A FORWARD -p tcp --dport 80 -d new.ip.add.ress -j ACCEPT
    iptables -A POSTROUTING -p tcp --dport 80 -d new.ip.add.ress -j SNAT --to my.ip.add.ress
  • PacketProxy
    A simple TCP proxy
  • tcpproxy
    A more full feature TCP proxy, can handle multiple connections

LDAP Server

IMAP Server

Rescue CDs

General requirements for a Linux rescue CD:
- Best with at least 2.6.18 kernel, support later SATA controllers
(e.g. JMICRON 36x only in 2.6.18)
- AHCI support
- Network support with newer network drivers
- Can load the whole CD into RAM
- Can install to USB key
- Optional upgradable kernel
  • System Rescue CD
    Latest version 0.3.0 at 2006-12-20, size: 150M
    Kernel 2.6.18.5 patched, can load the whole CD into RAM (‘docache’ boot option), can install to USB key
    To boot system into RAM, require 320M RAM! (nofb docache noxdetect)
  • R.I.P. Linux
    Latest version 1.9 at 2006-06-23, size: 35M (without X), 75M (with X)
    Kernel 2.6.17 patched, can load the whole CD into RAM, can install to USB key (will erase the whole USB key!)
    To boot system into RAM, only require 96M RAM
    Replace to a newer kernel is easy, just use the website’s kernel config and minor adjust with the new kernel (mainly on RAID456 and SATA drivers), and don’t patch the kernel with the tmpfs patch, then it will work.

Troubleshooting

PKI