brandonhutchinson.com
Note: I haven't updated this site in years as I've transitioned from UNIX Systems Engineer to Information Security.
http://brandonhutchinson.com/wiki
has some newer content, but that also is not being updated.
Linux, Solaris, and general UNIX notes.
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BIND
"multiple RRs of singleton type"
"no more recursive clients: quota reached"
BIND 8 chroot jail
BIND 9 chroot jail
BIND logging
Caching-only BIND nameserver
Checking DNS zones with h2n
Determining/hiding BIND version number
Miscellaneous BIND notes
Overriding global forwarding with BIND
Resetting BIND serial number
Updating BIND cache initialization ("hints") file
cfengine
cfengine "Host authentication failed"
cfengine notes
Firewalls
"Server Not Responding" errors in CKPfw Security Policy
Check Point FireWall-1 4.0 notes
Check Point FireWall-1 Destination NAT
Check Point FireWall-1 Management Console port forwarding
Check Point FireWall-1 rule check script
Check Point NG problems with EDNS
CKPfw fwx_backw reaching 25000
Example IP Filter firewall
Example iptables firewall
Multi-homed iptables firewall
Squid iptables firewall
Standalone iptables firewall
Testing firewall rules with hping
HP-UX
Booting into single-user mode
Recovering from a hung system
Wiping HP-UX disks
Linux
"The Red Hat Enterprise Linux installation tree in that directory does not seem to match your boot media."
/etc/cron.daily/rpm errors
Understanding /proc/cpuinfo
Add Engines... not working with Firefox
Adding NTFS support to Red Hat Linux
Building an RPM
Burning CDs with cdrecord
Burning Video DVDs in Linux
Changing default Web browser in Red Hat Linux 8.0
Changing hostname on RHEL
Changing KDE Arioso fixed font
Changing KDE splash screen
Cluster administration with pconsole
Converting Red Hat Network channels to yum repos
cpio/rpm2cpio commands
Creating a RHEL bootable DVD ISO
Creating additional loop devices
gnome-config compilation problems
DynDNS update script
Fastest Red Hat/Fedora Core mirrors
Fedora apt and yum repositories
Fedora Helper
Handling RPM "dependency hell"
Hardening Fedora
Hardening RHEL 3 ("Taroon")
How to pass the RHCE
I just installed Fedora Core 3. Now what?
Installing ALSA
Installing dsniff 2.3
Installing Internet Explorer on Linux
Installing KDE
Installing QEMU with Accelerator Module on Fedora Core
Installing TrueType Fonts
Installing VMware Tools with VMware Player
Installing Web browser plugins
Installing WINE daily builds
Installing Xfce 4.2 on Fedora Core 3
Internet Explorer with Fedora Core
JavaScript support with links
Kickstart and /etc/hosts
Linux Cisco VPN client
Linux: A Brief Overview
Miscellaneous Linux notes
Mounting a Linux LVM volume
Moving Linux to a new hard disk
mrepo configuration
nonroot: Undefined variable.
NVIDIA drivers with Red Hat Linux/Fedora
Recompiling the Fedora Core kernel
Running JPilot as a normal user
Upgrading Red Hat Linux/Fedora Core with yum
Using gFTP with ssh/sftp
Using ntp with Red Hat Linux/Fedora Core
Using VMware 2.0.4 with Red Hat 7.2
VIA VT8233 sound with Red Hat Linux
vmware-config.pl problems on FC6
vmware-config.pl problems with Fedora Core
vsftpd GMT directory listings
X11 screenshot with ImageMagick
Miscellaneous
"mail: Cannot open savefile"
"/usr/openwin/bin/xauth: timeout in locking authority file $HOME/.Xauthority"
Appending to Perl's @INC array
Building cfengine with static Berkeley DB and OpenSSL libraries
Copying directories
Creating a central syslog server
Creating RPMs from CPAN tarballs
Creating SPF records
crontab errors
ctime, atime, and mtime
Days since the epoch
Deleting pesky files
Determining Windows application ports
Displaying the year with the last command
DOS and UNIX end-of-line characters
Free IP address script
Generating password hashes with OpenSSL
Grammar notes
gzipping to a different directory
Home directory cleanup
Installing Perl modules
jabberd /etc/init.d script
MAC address finder for Bay/Nortel switches
Miscellaneous UNIX notes
Mozilla Firefox: The "Browser Battle" is Back
NetApp NFS Troubleshooting
NFS timeouts
Port to PID with lsof
Printf examples
Printing man pages
Redirection with sudo
Remote Cisco logging
Remote Web server version
Restricting user access
rpc.yppasswdd errors
rsync file selection
sh: rsync: not found
Simple Event Coordinator (SEC)
tar files with absolute pathnames
Truncating wtmp{,x}
Updating nmap OS fingerprints, nessus plugins
Unattended FTP
Uninstalling Ximian Desktop 2 (XD2)
UNIX In 90 Minutes
Using smbpasswd to reset Windows domain password
vi temporary work file location
VMware Player
Web traffic script
When does my certificate expire?
ProFTPD
ProFTPD 2GB file size limitation
Standalone ProFTPD
Using Passive FTP with ProFTPD
secure shell (ssh)
"cannot find ELF" when installing OpenSSH
"Received disconnect from
IP_address
: 2: too many failed userauth_requests"
BadAtom/BadWindow errors with ssh X11 forwarding
Building OpenSSH on Solaris 10
chroot ssh/sftp
Forwarding X11 traffic without "X11Forwarding yes"
OpenSSH ClientAliveInterval
Passwordless ssh logins
Secure alternatives to telnet and FTP
ssh tunnelling
Using OpenSSH keys with an ssh.com server
Using ~/.shosts with OpenSSH
WinSCP public key authentication
Security
chkrootkit
Exploit bundles from Packet Storm
FCheck
John the Ripper
OS fingerprinting with xprobe
ngrep
Running Snort on a Solaris 7 firewall
sendmail/email
"host map: lookup (domain): deferred"
"mail loops back to me (MX problem?) Local configuration error"
"readcf: option DoubleBounceAddress: value required"
"Relaying temporarily denied. Cannot resolve PTR record for IP address"
"RunAsGid for MSP ignored" error
"STARTTLS: read error=generic SSL error (0)"
"TLS handshake failed"
"Warning: OperatorChars is being redefined."
Accepting certain unqualified senders
Accepting certain unresolvable domains
Building Sendmail sample.c milter
compat_check FEATURE
CIDR netmasks with sendmail
Configuring the Solaris-supplied version of Sendmail
Copying all messages with Sendmail
Creating a new sendmail mailer
Deleting mail from the mail queue
Disabling the Sendmail daemon for outgoing mail
Header and envelope encoding
Installing ClamAV with Sendmail on Solaris
Installing Cyrus SASL with sendmail on Solaris
Installing Milter-SPF with Sendmail
Installing sendmail on Solaris
mailertable test script
mailq shows queue ID followed by an X
Mail relay stress test
makemap hash support for Sendmail
Miscellaneous Sendmail notes
Multiple RHS mailertable entries
NIS domainname in $j
Open relay test with mrt
Openrbl check script
QueueLA and RefuseLA
relay-domains vs. access database RELAY
Retrieving queued mail on DMZ Sendmail server
Running a second sendmail instance
savemail panic in sendmail
Sending command-line email attachments
sendmail adds $j to header addresses
Sendmail I/O error with large attachments
sendmail ignores .procmailrc
sendmail log search
Sendmail mail queue script
sendmail masquerading
sendmail program mail getting queued
Solaris 8 Sendmail masquerading
Spamhaus SBL + XBL check script
SPF::Query: "sender domain should be an FQDN, not an address literal"
Testing check_relay ruleset
Testing sendmail greet_pause FEATURE
Timeout.command
Timeout.connect waits twice as long
Upgrading sendmail
Using IP addresses in mailertable
Using SpamAssassin on a Sendmail relay
Using STARTTLS with sendmail
virtusertable FEATURE
Solaris
"/usr/ccs/bin/ld: illegal option -- E"
"//usr/lib/lu/ludefine: test: argument expected"
"checking for C compiler default output... configure: error: C compiler cannot create executables"
"No space left on device" when installing packages
"pkginfo: ERROR: bad entry read in contents file"
"sadc: kstat_lookup('unix', 0, 'kmem_misc') failed"
"ufs error doing common"
"/usr/ucb/cc: language optional software package not installed"
Administering swap space
cfengine compilation errors on Solaris
Changing hostname
Changing IP address
Compiling vim on Solaris
Creating a custom Solaris 8 installation CD
Creating a Flash archive
Creating Solaris packages
Determining Solarirs boot device
Disabling SUID on automounted directories
Disabling Sun keyboard abort sequence
Disk duplication
DiskSuite changes after Solaris upgrade
Downloading latest Solaris patch clusters
E3500 system board errors
Extracting files from Solaris packages
File descriptors
Fixing a partition table
Gathering Solaris system information
gzip: "Value too large for defined data type"
Installing IP Filter
Installing MIMEDefang on Solaris
Installing milter-greylist on Solaris
Installing Nessus on Solaris
Installing OpenSSH
Installing Solaris Recommended Patch Clusters
Installing SpamAssassin on Solaris 2.5.1
IPMP with "local-mac-address?=false"
Memory usage by process
Milter.LogLevel
Mirroring disks with DiskSuite
Miscellaneous Solaris notes
Missing Solaris disks
Mounting a CD/DVD with Solaris
Multiple excludes with flarcreate
NFS "Permission denied" errors
NIS slave server doesn't bind to itself
nscd caused NFS "Permission denied" problem
Problems starting SunVTS
Recommended Patch Cluster script
Relocating Solaris packages
Renumbering logical tape drive devices
Repairing a disk block with format
Replacing a disk with different geometry in DiskSuite
Replacing a failed disk with DiskSuite
Resetting forgotten root password
Slow lsof on Solaris
Solaris 10 ipnodes caveat
Solaris device aliases
Solaris JumpStart notes
Solaris kernel tunables
Solaris Live Upgrade
Solaris NIC speed and duplex settings
Solaris NIS configuration
Solaris pkg-get
Solaris pty's
Solaris route command examples
Solaris timezones
Solaris sys-unconfig and /etc/defaultrouter
Solaris system crash dumps
Solaris Upgrade
Solaris valid user accounts
Solaris zones
Sun console connection
Sun "locator"
Sun PROM updates
Unmounting NFS shares
Upgrading to Solaris 8
Upgrading xntpd to ntpd
Using Sun Open Storage Array Software
vi: "Tmp file too large"
Which Solaris cluster is installed?
ZFS: Cannot mount, directory is not empty
Squid
Installing Squid on Red Hat Linux 8.0
Proxying AOL Instant Messenger with Squid
Ubuntu
Rip MP3s using Sound Juicer
Veritas
Creating a volume with vxmake
Resizing a file system
Unencapsulating a root disk
Veritas licenses
Veritas notes
Veritas Unstartable Volume