Re: Time value errors

Justin Azoff <[email protected]> Wed, 18 Dec 2019 18:49:59 -0500
Newsgroups gmane.comp.security.detection.bro
Message-ID <CAPfnCujC8b9B63c1YsdNO+LYcWahnbut0KXTJ5bAU76T-dEZYw@mail.gmail.com>
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If you run that without the -d option,  what does the line containing
negative times look like?

There should be 4 times at the end of each record: ref_time
org_time           rec_time           xmt_time, knowing which one(s) have
the out of range value would help.  Something like

cat ntp.log |zeek-cut uid ref_time org_time rec_time xmt_time | fgrep --  -

may help see them better.

On Wed, Dec 18, 2019 at 6:08 PM Scot Harris <[email protected]> wrote=
:
>
> Noted what appear to be errors in the ntp.log file.
>
>
>
> Using following command:
>
>
>
> cat ntp.log | zeek-cut =E2=80=93d | less
>
>
>
>
>
>
>
> af_packet::eno1 2019-12-18T17:44:39-0500        C7MULpTngYof10ymf
10.1.45.35      123     10.1.5.60       123     2       3       4
64.000000       0.000004        0.070786        0.113083        10.1.5.60
    2019-12-18T17:43:35-0500        2019-12-18T17:43:35-0500
 2019-12-18T17:43:35-0500        2019-12-18T17:44:39-0500        0
>
> af_packet::eno1 2019-12-18T17:44:39-0500        C7MULpTngYof10ymf
10.1.45.35      123     10.1.5.60       123     3       4       3
64.000000       0.015625        0.069839        0.077545
 23.239.26.89    2019-:zeek-cut: time value out-of-range: -586465861.545972
>
> zeek-cut: time value out-of-range: -586465861.545972
>
> 12-18T17:42:18-0500        2019-12-18T17:44:39-0500
 2019-12-18T17:44:39-0500        2019-12-18T17:44:39-0500        0
>
> af_packet::eno1 2019-12-18T17:44:39-0500        C5GF2T1ozzCZptCbjf
 10.1.204.212    123     10.1.5.180      123     3       3       15
 64.000000       0.007812        0.000000        2.009995        0.0.0.0
1969-12-31T19:00:00-0500        1969-12-31T19:00:00-0500
 1969-12-31T19:00:00-0500        2019-12-18T17:44:46-0500        0
>
> af_packet::eno1 2019-12-18T17:44:40-0500        CxaJ6KeJfxVcN8Fw2
10.1.201.150    123     10.1.5.180      123     3       3       15
 64.000000       0.007812        0.000000        2.009995        0.0.0.0
1969-12-31T19:00:00-0500        1969-12-31T19:00:00-0500
 1969-12-31T19:00:00-0500        2019-12-18T17:44:48-0500        0
>
> af_packet::eno1 2019-12-18T17:44:40-0500        C8dZCI37SuYRZB9L7g
 10.1.13.61      123     10.1.5.60       123     3       3       4
64.000000       0.007812        0.069839        0.402298        60.5.1.10
    2019-12-18T17:43:37-0500        2019-12-18T17:43:36-0500
 2019-12-18T17:43:37-0500        2019-12-18T17:44:41-0500        0
>
> af_packet::eno1 2019-12-18T17:44:41-0500        CBz4Ww4jjCjKgHYfwc
 10.1.221.30     123     10.1.5.180      123     3       3       15
 64.000000       0.007812        0.000000        2.009995        0.0.0.0
1969-12-31T19:zeek-cut: time value out-of-range: -1114760693.379112
>
> zeek-cut: time value out-of-range: -1114760693.379112
>
> zeek-cut: time value out-of-range: -1115340513.842638
>
> :00:00-0500        1969-12-31T19:00:00-0500
 1969-12-31T19:00:00-0500        2019-12-18T17:44:44-0500        0
>
> af_packet::eno1 2019-12-18T17:44:40-0500        C4akh61szBCsYCPJn6
 10.1.223.28     123     10.1.5.180      123     3       3       15
 64.000000       0.007812        0.000000        2.009995        0.0.0.0
1969-12-31T19:
>
>
>
> Have not noticed these errors previously.
>
>
>
>
>
>
>
> ____________________________________________________
> Scot Harris
> Network Engineer | IT | City of Hollywood
>
> (P) 954-921-3304 | [email protected]
>
>
>
>
>
> _______________________________________________
> Zeek mailing list
> [email protected]
> http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/zeek



--
Justin

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<div dir=3D"ltr">If you run that without the -d option, =C2=A0what does the=
 line containing negative times look like?<div><br></div><div>There should =
be 4 times at the end of each record:=C2=A0ref_time =C2=A0 =C2=A0 =C2=A0 =
=C2=A0 =C2=A0 org_time =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 rec_time =C2=A0 =
=C2=A0 =C2=A0 =C2=A0 =C2=A0 xmt_time, knowing=C2=A0which one(s) have the ou=
t of range value would help.=C2=A0 Something like</div><div><br></div><div>=
cat ntp.log |zeek-cut uid ref_time org_time rec_time xmt_time=C2=A0| fgrep =
-- =C2=A0-</div><div><br></div><div>may help see them better.<br><br>On Wed=
, Dec 18, 2019 at 6:08 PM Scot Harris &lt;<a href=3D"mailto:SHARRIS@hollywo=
odfl.org">[email protected]</a>&gt; wrote:<br>&gt;<br>&gt; Noted what=
 appear to be errors in the ntp.log file.<br>&gt;<br>&gt; =C2=A0<br>&gt;<br=
>&gt; Using following command:<br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt; cat n=
tp.log | zeek-cut =E2=80=93d | less<br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt; =
=C2=A0<br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt; af_packet::eno1 2019-12-18T17=
:44:39-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A0C7MULpTngYof10ymf =C2=A0 =C2=A0 =C2=
=A0 10.1.45.35 =C2=A0 =C2=A0 =C2=A0123 =C2=A0 =C2=A0 10.1.5.60 =C2=A0 =C2=
=A0 =C2=A0 123 =C2=A0 =C2=A0 2 =C2=A0 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 =
4 =C2=A0 =C2=A0 =C2=A0 64.000000 =C2=A0 =C2=A0 =C2=A0 0.000004 =C2=A0 =C2=
=A0 =C2=A0 =C2=A00.070786 =C2=A0 =C2=A0 =C2=A0 =C2=A00.113083 =C2=A0 =C2=A0=
 =C2=A0 =C2=A010.1.5.60 =C2=A0 =C2=A0 =C2=A0 2019-12-18T17:43:35-0500 =C2=
=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17:43:35-0500 =C2=A0 =C2=A0 =C2=A0 =C2=
=A02019-12-18T17:43:35-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17:44:39-=
0500 =C2=A0 =C2=A0 =C2=A0 =C2=A00<br>&gt;<br>&gt; af_packet::eno1 2019-12-1=
8T17:44:39-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A0C7MULpTngYof10ymf =C2=A0 =C2=A0 =
=C2=A0 10.1.45.35 =C2=A0 =C2=A0 =C2=A0123 =C2=A0 =C2=A0 10.1.5.60 =C2=A0 =
=C2=A0 =C2=A0 123 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 4 =C2=A0 =C2=A0 =C2=
=A0 3 =C2=A0 =C2=A0 =C2=A0 64.000000 =C2=A0 =C2=A0 =C2=A0 0.015625 =C2=A0 =
=C2=A0 =C2=A0 =C2=A00.069839 =C2=A0 =C2=A0 =C2=A0 =C2=A00.077545 =C2=A0 =C2=
=A0 =C2=A0 =C2=A023.239.26.89 =C2=A0 =C2=A02019-:zeek-cut: time value out-o=
f-range: -586465861.545972<br>&gt;<br>&gt; zeek-cut: time value out-of-rang=
e: -586465861.545972<br>&gt;<br>&gt; 12-18T17:42:18-0500 =C2=A0 =C2=A0 =C2=
=A0 =C2=A02019-12-18T17:44:39-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17=
:44:39-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17:44:39-0500 =C2=A0 =C2=
=A0 =C2=A0 =C2=A00<br>&gt;<br>&gt; af_packet::eno1 2019-12-18T17:44:39-0500=
 =C2=A0 =C2=A0 =C2=A0 =C2=A0C5GF2T1ozzCZptCbjf =C2=A0 =C2=A0 =C2=A010.1.204=
.212 =C2=A0 =C2=A0123 =C2=A0 =C2=A0 10.1.5.180 =C2=A0 =C2=A0 =C2=A0123 =C2=
=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 15 =C2=A0 =C2=A0 =
=C2=A064.000000 =C2=A0 =C2=A0 =C2=A0 0.007812 =C2=A0 =C2=A0 =C2=A0 =C2=A00.=
000000 =C2=A0 =C2=A0 =C2=A0 =C2=A02.009995 =C2=A0 =C2=A0 =C2=A0 =C2=A00.0.0=
.0 1969-12-31T19:00:00-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A01969-12-31T19:00:00-=
0500 =C2=A0 =C2=A0 =C2=A0 =C2=A01969-12-31T19:00:00-0500 =C2=A0 =C2=A0 =C2=
=A0 =C2=A02019-12-18T17:44:46-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A00<br>&gt;<br>=
&gt; af_packet::eno1 2019-12-18T17:44:40-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A0Cx=
aJ6KeJfxVcN8Fw2 =C2=A0 =C2=A0 =C2=A0 10.1.201.150 =C2=A0 =C2=A0123 =C2=A0 =
=C2=A0 10.1.5.180 =C2=A0 =C2=A0 =C2=A0123 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=
=A0 3 =C2=A0 =C2=A0 =C2=A0 15 =C2=A0 =C2=A0 =C2=A064.000000 =C2=A0 =C2=A0 =
=C2=A0 0.007812 =C2=A0 =C2=A0 =C2=A0 =C2=A00.000000 =C2=A0 =C2=A0 =C2=A0 =
=C2=A02.009995 =C2=A0 =C2=A0 =C2=A0 =C2=A00.0.0.0 1969-12-31T19:00:00-0500 =
=C2=A0 =C2=A0 =C2=A0 =C2=A01969-12-31T19:00:00-0500 =C2=A0 =C2=A0 =C2=A0 =
=C2=A01969-12-31T19:00:00-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17:44:=
48-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A00<br>&gt;<br>&gt; af_packet::eno1 2019-1=
2-18T17:44:40-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A0C8dZCI37SuYRZB9L7g =C2=A0 =C2=
=A0 =C2=A010.1.13.61 =C2=A0 =C2=A0 =C2=A0123 =C2=A0 =C2=A0 10.1.5.60 =C2=A0=
 =C2=A0 =C2=A0 123 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=
=A0 4 =C2=A0 =C2=A0 =C2=A0 64.000000 =C2=A0 =C2=A0 =C2=A0 0.007812 =C2=A0 =
=C2=A0 =C2=A0 =C2=A00.069839 =C2=A0 =C2=A0 =C2=A0 =C2=A00.402298 =C2=A0 =C2=
=A0 =C2=A0 =C2=A060.5.1.10 =C2=A0 =C2=A0 =C2=A0 2019-12-18T17:43:37-0500 =
=C2=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17:43:36-0500 =C2=A0 =C2=A0 =C2=A0 =
=C2=A02019-12-18T17:43:37-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A02019-12-18T17:44:=
41-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A00<br>&gt;<br>&gt; af_packet::eno1 2019-1=
2-18T17:44:41-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A0CBz4Ww4jjCjKgHYfwc =C2=A0 =C2=
=A0 =C2=A010.1.221.30 =C2=A0 =C2=A0 123 =C2=A0 =C2=A0 10.1.5.180 =C2=A0 =C2=
=A0 =C2=A0123 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 1=
5 =C2=A0 =C2=A0 =C2=A064.000000 =C2=A0 =C2=A0 =C2=A0 0.007812 =C2=A0 =C2=A0=
 =C2=A0 =C2=A00.000000 =C2=A0 =C2=A0 =C2=A0 =C2=A02.009995 =C2=A0 =C2=A0 =
=C2=A0 =C2=A00.0.0.0 1969-12-31T19:zeek-cut: time value out-of-range: -1114=
760693.379112<br>&gt;<br>&gt; zeek-cut: time value out-of-range: -111476069=
3.379112<br>&gt;<br>&gt; zeek-cut: time value out-of-range: -1115340513.842=
638<br>&gt;<br>&gt; :00:00-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A01969-12-31T19:00=
:00-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A01969-12-31T19:00:00-0500 =C2=A0 =C2=A0 =
=C2=A0 =C2=A02019-12-18T17:44:44-0500 =C2=A0 =C2=A0 =C2=A0 =C2=A00<br>&gt;<=
br>&gt; af_packet::eno1 2019-12-18T17:44:40-0500 =C2=A0 =C2=A0 =C2=A0 =C2=
=A0C4akh61szBCsYCPJn6 =C2=A0 =C2=A0 =C2=A010.1.223.28 =C2=A0 =C2=A0 123 =C2=
=A0 =C2=A0 10.1.5.180 =C2=A0 =C2=A0 =C2=A0123 =C2=A0 =C2=A0 3 =C2=A0 =C2=A0=
 =C2=A0 3 =C2=A0 =C2=A0 =C2=A0 15 =C2=A0 =C2=A0 =C2=A064.000000 =C2=A0 =C2=
=A0 =C2=A0 0.007812 =C2=A0 =C2=A0 =C2=A0 =C2=A00.000000 =C2=A0 =C2=A0 =C2=
=A0 =C2=A02.009995 =C2=A0 =C2=A0 =C2=A0 =C2=A00.0.0.0 1969-12-31T19:<br>&gt=
;<br>&gt; =C2=A0<br>&gt;<br>&gt; Have not noticed these errors previously.<=
br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt; =C2=A0<br>&gt=
;<br>&gt; ____________________________________________________<br>&gt; Scot=
 Harris<br>&gt; Network Engineer | IT | City of Hollywood<br>&gt;<br>&gt; (=
P) 954-921-3304 | <a href=3D"mailto:[email protected]">sharris@hollyw=
oodfl.org</a><br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt; =C2=A0<br>&gt;<br>&gt;=
 _______________________________________________<br>&gt; Zeek mailing list<=
br>&gt; <a href=3D"mailto:[email protected]">[email protected]</a><br>&gt; <a href=
=3D"http://mailman.ICSI.Berkeley.EDU/mailman/listinfo/zeek">http://mailman.=
ICSI.Berkeley.EDU/mailman/listinfo/zeek</a><br><br><br><br>--<br>Justin</di=
v></div>

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