[squid-users] ssl bump

Alex Rousskov rousskov at measurement-factory.com
Fri Jul 17 12:44:58 UTC 2026
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On 2026-07-17 01:31, Vacheslav wrote:

> 16.07.2026 18:19, Andrey K пишет:
>> @Vacheslav:
>> > sudo /usr/libexec/squid/security_file_certgen -c -s
>> > /var/cache/squid/ssl_db/certs -M 4MB
>> You specified the wrong path (the correct one is 
>> /var/cache/squid/ssl_db ).
> 
> 
> good catch:
> now running:
>   sudo -u squid /usr/libexec/squid/security_file_certgen -s 
> /var/cache/squid/ssl_db -M 4MB
> ^C
> produces nothing.

That lack of output is a good sign -- the helper managed to start 
successfully.


> 2026/07/17 08:21:33 kid1| WARNING: sslcrtd_program #Hlpr1 exited

Helpers are still dying, but it looks like they do it while handling 
traffic.


>> 2. Redirect security_file_certgen stderr (but not stdout!) output
>> into a dedicated log file. It may be possible to do that right on
>> the sslcrtd_program line, without wrapping the helper into another
>> script.

> how to do that?

Try using shell redirection when specifying how to run the helper. 
Something along these lines may work:

     sslcrtd_program /usr/local/... -M 4MB >> /tmp/sslcrtd.error.log

I also recommend using a single helper for the initial tests:

     sslcrtd_children 1 startup=1 idle=1


HTH,

Alex.


> 2026/07/17 08:17:35| Removing PID file (/run/squid.pid)
> 2026/07/17 08:18:54| WARNING: BCP 177 violation. Detected non-functional 
> IPv6 loopback.
> 2026/07/17 08:18:54| aclIpParseIpData: IPv6 has not been enabled.
>      acl name: to_localhost
>      configuration context: Default Configuration(15) acl
> 2026/07/17 08:18:54| aclIpParseIpData: IPv6 has not been enabled.
>      acl name: to_localhost
>      configuration context: Default Configuration(15) acl
> 2026/07/17 08:18:54| aclIpParseIpData: IPv6 has not been enabled.
>      acl name: to_linklocal
>      configuration context: Default Configuration(16) acl
> 2026/07/17 08:18:54| Processing Configuration File: 
> /etc/squid/squid.conf (depth 0)
> 2026/07/17 08:18:55| Created PID file (/run/squid.pid)
> 2026/07/17 08:18:55 kid1| WARNING: BCP 177 violation. Detected 
> non-functional IPv6 loopback.
> 2026/07/17 08:18:55 kid1| aclIpParseIpData: IPv6 has not been enabled.
>      acl name: to_localhost
>      configuration context: Default Configuration(15) acl
> 2026/07/17 08:18:55 kid1| aclIpParseIpData: IPv6 has not been enabled.
>      acl name: to_localhost
>      configuration context: Default Configuration(15) acl
> 2026/07/17 08:18:55 kid1| aclIpParseIpData: IPv6 has not been enabled.
>      acl name: to_linklocal
>      configuration context: Default Configuration(16) acl
> 2026/07/17 08:18:55 kid1| Processing Configuration File: 
> /etc/squid/squid.conf (depth 0)
> 2026/07/17 08:18:55 kid1| Set Current Directory to /var/cache/squid
> 2026/07/17 08:18:55 kid1| Starting Squid Cache version 7.6 for 
> x86_64-suse-linux-gnu...
> 2026/07/17 08:18:55 kid1| Service Name: squid
> 2026/07/17 08:18:55 kid1| Process ID 3685
> 2026/07/17 08:18:55 kid1| Process Roles: worker
> 2026/07/17 08:18:55 kid1| With 4096 file descriptors available
> 2026/07/17 08:18:55 kid1| Initializing IP Cache...
> 2026/07/17 08:18:55 kid1| DNS IPv4 socket created at 0.0.0.0, FD 7
> 2026/07/17 08:18:55 kid1| Adding nameserver 10.6.30.40 from /etc/resolv.conf
> 2026/07/17 08:18:55 kid1| Adding nameserver 10.10.10.5 from /etc/resolv.conf
> 2026/07/17 08:18:55 kid1| helperOpenServers: Starting 5/5 
> 'security_file_certgen' processes
> 2026/07/17 08:18:55 kid1| helperOpenServers: Starting 8/16 'ufdbgclient' 
> processes
> 2026/07/17 08:18:55 kid1| Logfile: opening log 
> daemon:/var/log/squid/access.log
> 2026/07/17 08:18:55 kid1| Logfile Daemon: opening log 
> /var/log/squid/access.log
> 2026/07/17 08:18:56 kid1| Unlinkd pipe opened on FD 39
> 2026/07/17 08:18:56 kid1| Local cache digest enabled; rebuild/rewrite 
> every 3600/3600 sec
> 2026/07/17 08:18:56 kid1| Store logging disabled
> 2026/07/17 08:18:56 kid1| Swap maxSize 3072000 + 983040 KB, estimated 
> 311926 objects
> 2026/07/17 08:18:56 kid1| Target number of buckets: 15596
> 2026/07/17 08:18:56 kid1| Using 16384 Store buckets
> 2026/07/17 08:18:56 kid1| Max Mem  size: 983040 KB
> 2026/07/17 08:18:56 kid1| Max Swap size: 3072000 KB
> 2026/07/17 08:18:56 kid1| Rebuilding storage in /var/cache/squid (clean log)
> 2026/07/17 08:18:56 kid1| Using Least Load store dir selection
> 2026/07/17 08:18:56 kid1| Set Current Directory to /var/cache/squid
> 2026/07/17 08:18:56 kid1| Finished loading MIME types and icons.
> 2026/07/17 08:18:56 kid1| HTCP Disabled.
> 2026/07/17 08:18:56 kid1| Pinger socket opened on FD 44
> 2026/07/17 08:18:56 kid1| Squid plugin modules loaded: 0
> 2026/07/17 08:18:56 kid1| Adaptation support is off.
> 2026/07/17 08:18:56 kid1| Accepting SSL bumped HTTP Socket connections 
> at conn28 local=0.0.0.0:8080 remote=[::] FD 42 flags=9
>      listening port: 8080
> 2026/07/17 08:18:56 pinger| WARNING: BCP 177 violation. Detected 
> non-functional IPv6 loopback.
> 2026/07/17 08:18:56 pinger| Initialising ICMP pinger ...
> 2026/07/17 08:18:56 pinger| ICMP socket opened.
> 2026/07/17 08:18:56 pinger| ICMPv6 socket opened
> 2026/07/17 08:18:56 kid1| Indexing cache entries: 1.84% (4000 out of 217945)
> 2026/07/17 08:18:59 kid1| Done reading /var/cache/squid swaplog (217944 
> entries)
> 2026/07/17 08:18:59 kid1| Finished rebuilding storage from disk.
>       217944 Entries scanned
>            0 Invalid entries
>            0 With invalid flags
>       217944 Objects loaded
>            0 Objects expired
>            0 Objects canceled
>            0 Duplicate URLs purged
>            0 Swapfile clashes avoided
>      Took 2.85 seconds (76435.29 objects/sec).
> 2026/07/17 08:18:59 kid1| Beginning Validation Procedure
> 2026/07/17 08:18:59 kid1| Completed Validation Procedure
>      Validated 217930 Entries
>      store_swap_size = 2764788.00 KB
> 2026/07/17 08:18:59 kid1| storeLateRelease: released 0 objects
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000418+TLS_IO_ERR=1
>      current master transaction: master57
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master55
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master55
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master57
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master57
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master55
> 2026/07/17 08:18:59 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master57
> 
> ........
> 
> 2026/07/17 08:21:32 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master57
> 2026/07/17 08:21:32 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000416+TLS_IO_ERR=1
>      current master transaction: master57
> 2026/07/17 08:21:33 kid1| ERROR: Cannot accept a TLS connection
>      problem: failure
>      error detail: SQUID_TLS_ERR_ACCEPT+TLS_LIB_ERR=A000418+TLS_IO_ERR=1
>      current master transaction: master57
> 2026/07/17 08:21:33 kid1| WARNING: sslcrtd_program #Hlpr1 exited
>      current master transaction: master57
> 2026/07/17 08:21:33 kid1| Too few sslcrtd_program processes are running 
> (need 1/5)
>      active processes: 4
>      processes configured to start at (re)configuration: 5
>      current master transaction: master57
> 2026/07/17 08:21:33 kid1| helperOpenServers: Starting 1/5 
> 'security_file_certgen' processes
>      current master transaction: master57
> 2026/07/17 08:21:33 kid1| Preparing for shutdown after 761 requests
> 2026/07/17 08:21:33 kid1| Waiting 30 seconds for active connections to 
> finish
> 2026/07/17 08:21:33 kid1| Closing HTTP(S) port 0.0.0.0:8080
>      listening port: 8080
> 2026/07/17 08:21:33 kid1| Closing Pinger socket on FD 44
> 2026/07/17 08:21:33 kid1| ERROR: logfileHandleWrite: 
> daemon:/var/log/squid/access.log: error writing ((32) Broken pipe)
>      connection: conn2846 local=10.0.0.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1| storeDirWriteCleanLogs: Starting...
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1|     65536 entries written so far.
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1|    131072 entries written so far.
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1|    196608 entries written so far.
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1|   Finished.  Wrote 217944 entries.
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1|   Took 0.08 seconds (2736133.78 entries/sec).
>      connection: conn2846 local=10.10.10.18:8080 remote=10.16.0.7:53255 
> flags=1
> 2026/07/17 08:21:33 kid1| FATAL: I don't handle this error well!
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> 2026/07/17 08:21:33 kid1| Squid Cache (Version 7.6): Terminated abnormally.
>      connection: conn2846 local=10.10.10.18:8080 remote=10.1.0.17:53255 
> flags=1
> CPU Usage: 10.098 seconds = 7.758 user + 2.340 sys
> Maximum Resident Size: 314320 KB
> Page faults with physical i/o: 0
>>
>> To recreate a certificate database you should do:
>>
>> sudo rm -rf /var/cache/squid/ssl_db
>> sudo /usr/libexec/squid/security_file_certgen -c 
>> -s /var/cache/squid/ssl_db -M 4MB
>> sudo chown -R squid:squid /var/cache/squid/ssl_db
>>
>> чт, 16 июл. 2026 г. в 16:36, Alex Rousskov 
>> <rousskov at measurement-factory.com>:
>>
>>     On 2026-07-16 01:57, Vacheslav wrote:
>>
>>     > 2026/07/16 08:34:24 kid1| WARNING: sslcrtd_program #Hlpr1 exited
>>
>>     We need to figure out why your security_file_certgen helpers are
>>     exiting. IIRC, those helpers have not been upgraded to report their
>>     fatal failures to cache.log. There are a few tricks you can use to
>>     see
>>     what the problem is, but I would probably start with these three:
>>
>>     1. Run security_file_certgen with sslcrtd_program parameters from the
>>     command line, as Squid user. If you are lucky, it will complain about
>>     something before it starts waiting for the helper request.
>>
>>     2. Redirect security_file_certgen stderr (but not stdout!) output
>>     into a
>>     dedicated log file. It may be possible to do that right on the
>>     sslcrtd_program line, without wrapping the helper into another script.
>>
>>     3. Enable full debugging, reproduce the problem with a single
>>     transaction, and send a link to the corresponding compressed
>>     cache.log
>>     file for analysis as detailed at
>>     https://wiki.squid-cache.org/SquidFaq/BugReporting#debugging-a-single-transaction
>>
>>
>>     Cheers,
>>
>>     Alex.
>>
>>     _______________________________________________
>>     squid-users mailing list
>>     squid-users at lists.squid-cache.org
>>     https://lists.squid-cache.org/listinfo/squid-users
>>
>
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