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| author | johannst <johannes.stoelp@gmail.com> | 2020-10-02 11:28:11 +0200 |
|---|---|---|
| committer | johannst <johannes.stoelp@gmail.com> | 2020-10-02 11:28:11 +0200 |
| commit | d0f74b8605d72868c49fec7d27225398118f9409 (patch) | |
| tree | 268650bc9f412300079336e59b5c726ea2049e92 | |
| parent | 871f1a6f408a9b50182c8688d4aeec26bd6b2d93 (diff) | |
| download | notes-d0f74b8605d72868c49fec7d27225398118f9409.tar.gz notes-d0f74b8605d72868c49fec7d27225398118f9409.zip | |
updated lsof
| -rw-r--r-- | src/monitor/lsof.md | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/monitor/lsof.md b/src/monitor/lsof.md index 8253003..f621abe 100644 --- a/src/monitor/lsof.md +++ b/src/monitor/lsof.md @@ -2,12 +2,15 @@ ```markdown lsof + -r <s> ..... repeatedly execute command ervery <s> seconds -a ......... AND slection filters instead ORing (OR: default) -p <pid> ... filter by <pid> +fg ........ show file flags for file descripros -n ......... don't convert network addr to hostnames -P ......... don't convert network port to service names -i <@h[:p]>. show connections to h (hostname|ip addr) with optional port p + -s <p:s> ... in conjunction with '-i' filter for protocol <p> in state <s> + -U ......... show unix domain sockets ('@' indicates abstract sock name, see unix(7)) ``` ```markdown @@ -18,6 +21,18 @@ file flags: TR ......... truncate ``` +```markdown +-s protocols + TCP, UDP + +-s states (TCP) + CLOSED, IDLE, BOUND, LISTEN, ESTABLISHED, SYN_SENT, SYN_RCDV, ESTABLISHED, + CLOSE_WAIT, FIN_WAIT1, CLOSING, LAST_ACK, FIN_WAIT_2, TIME_WAIT + +-s states (UDP) + Unbound, Idle +``` + # Examples ## File flags @@ -25,10 +40,11 @@ Show open files with file flags for process: ```markdown lsof +fg -p <pid> ``` + ## Open TCP connections Show open tcp connections for `$USER`: ```markdown -lsof -a -u $USER -i tcp +lsof -a -u $USER -i TCP ``` **Note**: `-a` _ands_ the results. If `-a` is not given all open files matching `$USER` and all tcp connections are listed (_ored_). @@ -38,3 +54,8 @@ Show open connections to `localhost` for `$USER`: ```markdown lsof -a -u $USER -i @localhost ``` + +## IPv4 TCP connections in `ESTABLISHED` state +```markdown +lsof -i 4TCP -s TCP:ESTABLISHED +``` |