Michael Glenn's questions

We are investigating an issue whereby on occasion our email system and our customer's email system occasionally do not receive a copy of a third party invoice. We are using Google Apps and don't have access to inbound SMTP logs but the email is definitely not in our All Mail.

The third party provided the following SMTP logs. Do they verify with certainty that the email was delivered? (email prefixes replaced)

2011-09-18 11:40:02 To:[email protected] Stat:Sent Full Details
2011-09-18 11:40:01 from=<[email protected]>
2011-09-18 11:40:02 to=<[email protected]> stat=Sent (ok: Message 622358550 accepted)
2011-09-18 11:40:03 to=<[email protected]> stat=Sent (OK 1316360403 c8si9093664pbl.43)
Sep 18 11:40:03 mail3 sendmail[24063]: p8IFe1vP024060: to=<[email protected]>, delay=00:00:02, xdelay=00:00:01, mailer=esmtp, pri=159505, relay=aspmx.l.google.com. [74.125.53.26], dsn=2.0.0, stat=Sent (OK 1316360403 c8si9093664pbl.43)
Sep 18 11:40:02 mail3 sendmail[24063]: p8IFe1vP024060: to=<[email protected]>, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=159505, relay=mx.cogeco.ca. [216.221.81.26], dsn=2.0.0, stat=Sent (ok: Message 622358550 accepted)
Sep 18 11:40:01 mail3 sendmail[24060]: p8IFe1vP024060: from=<[email protected]>, size=9505, class=0, nrcpts=2, msgid=<[email protected]>, proto=ESMTP, daemon=MTA, relay=cleopatra.softvoyage.com [172.28.73.12]

I'm switching our VoIP phones (Polycom 301s and 501s) to our data network. They were previously segmented to their own network. This means disabling the DHCP on the Trixbox (Asterisk) server and configuring the Sonicwall TZ 210 DHCP to indicate that Trixbox is the TFTP server.

The Polycom phones are stating "could not contact boot server". All phones are configured to TFTP and were confirmed working when previously using the Trixbox server for DHCP. Trixbox DHCP is now turned off.

I've configured options 66(as String), 128(as IP) and 150(as IP) in DHCP and added them to a TFTP Option Group. I've enabled "Allow BOOTP Clients to use Range" for the Dynamic IP range and assigned the Option Group TFTP as the DHCP Generic Option Group.

Any idea what I'm missing? Is there a separate tool to inspect the DHCP response to compare Trixbox to the Sonicwall?

I have a network of Mac laptops and Mac Minis. I also have an old G4 running HornWare SharePoints that allows me to use my Drobo as a network share (AFS).

Time Machine does not appear to support backup to a network share and hacks to enable this appear to be fraught with unknown danger as message boards suggest Apple disabled this for a reason.

What is the best way to back-up up Macs over a network?

We have several Polycom 301s in the office along with 501s, 601s and SoundStation 4001s. Recently several of the 301s and a 4001 have stopped being able to register against Trixbox/Asterisk server and additional phones are starting to exhibit this behavior. They are able to contact the server to obtain an IP address, contact the TFTP server to provision and even upload debug logs but the registration appears to timeout. Log excepts are below. Any ideas?

Asterisk 1.4.22 Trixbox 2.8.0 Polycom 3.0.1

0724113935|sip |3|03|Retry send 281
0724113939|sip |3|03|SendMessageFail
0724113939|sip |3|03|CUser::NewWorkingServer 1 to 279772128
0724113939|sip |3|03|SipOnEvNewWorkingServer User 0, old 0, new 0, expire 0
0724113939|sip |3|03|SipOnEvRegistrarUpdate User 0, index 0, state 0, expire 0, working 1
0724113939|sip |1|03|Client State finished REGISTER
0724113939|sip |3|03|SipStartFailOver 0
0724114008|sip |1|03|CreateFailOverProxyList : Reg to Domain '192.168.1.110' nPort 5060
0724114008|sip |1|03|CreateFailOverProxyList : For REGISTER Request nPort 5060
0724114008|sip |1|03|doDnsListLookup(udp): doDnsSrvLookupForARecordList for '192.168.1.110' port 5060 returned 1 results
0724114008|sip |1|03|doDnsListLookup(udp): result 0 '192.168.1.110' port 5060
0724114008|sip |1|03|CreateFailOverProxyList : Not NAPTR for '192.168.1.110' port 5060 IP 0 is '192.168.1.110' on udp port 5060
0724114008|sip |2|03|CreateFailOverProxyList : Exit with 1 IP Addresses
0724114008|sip |2|03|CreateFailOverProxyList : IP 1 is '192.168.1.110' on udp port 5060
0724114008|sip |0|03|>>> Data Send to 192.168.1.110:5060
0724114008|sip |0|03| REGISTER sip:192.168.1.110:5060 SIP/2.0
0724114008|sip |0|03| Via: SIP/2.0/UDP 192.168.1.248;branch=z9hG4bKdc51d87E89D17EA
0724114008|sip |0|03| From: "Joe Blow" ;tag=2FC4C6AD-D293EB4E
0724114008|sip |0|03| To:
0724114008|sip |0|03| CSeq: 1 REGISTER
0724114008|sip |0|03| Call-ID: [email protected]
0724114008|sip |0|03| Contact: ;methods="INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE
0724114008|sip |0|03| , REFER"
0724114008|sip |0|03| User-Agent: PolycomSoundPointIP-SPIP_301-UA/3.0.1.0032
0724114008|sip |0|03| Max-Forwards: 70
0724114008|sip |0|03| Expires: 3600
0724114008|sip |0|03| Content-Length: 0
0724114008|sip |0|03|
0724114009|sip |0|03|>>> Data Send to 192.168.1.110:5060
0724114009|sip |0|03| REGISTER sip:192.168.1.110:5060 SIP/2.0
0724114009|sip |0|03| Via: SIP/2.0/UDP 192.168.1.248;branch=z9hG4bKdc51d87E89D17EA
0724114009|sip |0|03| From: "Joe Blow" ;tag=2FC4C6AD-D293EB4E
0724114009|sip |0|03| To:
0724114009|sip |0|03| CSeq: 1 REGISTER
0724114009|sip |0|03| Call-ID: [email protected]
0724114009|sip |0|03| Contact: ;methods="INVITE, ACK, BYE, CANCEL, OPTIONS, INFO, MESSAGE, SUBSCRIBE, NOTIFY, PRACK, UPDATE
0724114009|sip |0|03| , REFER"
0724114009|sip |0|03| User-Agent: PolycomSoundPointIP-SPIP_301-UA/3.0.1.0032
0724114009|sip |0|03| Max-Forwards: 70
0724114009|sip |0|03| Expires: 3600
0724114009|sip |0|03| Content-Length: 0

Our IT services firm is proposing a network reconfiguration to use the IP range 10.10.150.1 – 10.10.150.254 internally as they state the current IP scheme using manufacturer defaults of 192.168.1.x is "making it to easy to exploit".

Is this true? How does knowing / not knowing the internal IP scheme make a network more exploitable? All internal systems are behind a SonicWall NAT and firewall router.

Is there a way with Applescript to launch multiple tabs in Terminal and execute commands against them?

I have a project that requires me to launch several services in Terminal to run and monitor simultaneously and would like to automate that start-up process.

I've had a few customers (banks) indicate that the reason their company still standardizes on IE6 is because it's still supported by Microsoft. They will upgrade when Microsoft stops supporting it they will standardize on IE7 or perhaps IE8.

What is the official expiration date for support on IE6?